TheRock/compiler/amd-llvm/clang/unittests/Analysis/FlowSensitive/UncheckedStatusOrAccessModelTestFixture.cpp

//===- UncheckedStatusOrAccessModelTestFixture.cpp ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "UncheckedStatusOrAccessModelTestFixture.h"
#include "MockHeaders.h"
#include "llvm/Support/ErrorHandling.h"

#include <string>
#include <utility>
#include <vector>

#include "gtest/gtest.h"

namespace clang::dataflow::statusor_model {
namespace {

TEST_P(UncheckedStatusOrAccessModelTest, NoStatusOrMention) {
  ExpectDiagnosticsFor(R"cc(
    void target() { "nop"; }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToValue) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NonExplicitInitialization) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
    STATUSOR_INT target() {
      STATUSOR_INT x = Make<STATUSOR_INT>();
      return x.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToValue_NewLine) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      sor.  // force newline
      value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Rvalue_CallToValue) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      std::move(sor).value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToValueOrDie) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      sor.ValueOrDie();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Rvalue_CallToValueOrDie) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      std::move(sor).ValueOrDie();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToOperatorStar) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      *sor;  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToOperatorStarSeparateLine) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      *  // [[unsafe]]
          sor;
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Rvalue_CallToOperatorStar) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      *std::move(sor);  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Lvalue_CallToOperatorArrow) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      void foo();
    };

    void target(absl::StatusOr<Foo> sor) {
      sor->foo();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest,
       UnwrapWithoutCheck_Rvalue_CallToOperatorArrow) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      void foo();
    };

    void target(absl::StatusOr<Foo> sor) {
      std::move(sor)->foo();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UnwrapRvalueWithCheck) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.ok()) std::move(sor).value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ParensInDeclInitExpr) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      auto sor = (Make<STATUSOR_INT>());
      if (sor.ok()) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ReferenceInDeclInitExpr) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      const STATUSOR_INT& GetStatusOrInt() const;
    };

    void target(Foo foo) {
      auto sor = foo.GetStatusOrInt();
      if (sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT& GetStatusOrInt();
    };

    void target(Foo foo) {
      auto sor = foo.GetStatusOrInt();
      if (sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT&& GetStatusOrInt() &&;
    };

    void target(Foo foo) {
      auto sor = std::move(foo).GetStatusOrInt();
      if (sor.ok()) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor) {
          if (sor.ok())
            sor.value();
          else
            sor.value();  // [[unsafe]]

          sor.value();  // [[unsafe]]
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      if (auto sor = Make<STATUSOR_INT>(); sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, JoinSafeSafe) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor, bool b) {
          if (sor.ok()) {
            if (b)
              sor.value();
            else
              sor.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, JoinUnsafeUnsafe) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor, bool b) {
      if (b)
        sor.value();  // [[unsafe]]
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, InversedIfThenElse) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor) {
          if (!sor.ok())
            sor.value();  // [[unsafe]]
          else
            sor.value();

          sor.value();  // [[unsafe]]
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, DoubleInversedIfThenElse) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (!!sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TripleInversedIfThenElse) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (!!!sor.ok())
        sor.value();  // [[unsafe]]
      else
        sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_LhsAndRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok() && y.ok()) {
        x.value();

        y.value();
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_NotLhsAndRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!x.ok() && y.ok()) {
            y.value();

            x.value();  // [[unsafe]]
          } else {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_LhsAndNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok() && !y.ok()) {
            x.value();

            y.value();  // [[unsafe]]
          } else {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_NotLhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (!x.ok() && !y.ok()) {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_LhsAndRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!(x.ok() && y.ok())) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            x.value();

            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_NotLhsAndRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!(!x.ok() && y.ok())) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            y.value();

            x.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_LhsAndNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!(x.ok() && !y.ok())) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            x.value();

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_NotLhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (!(!x.ok() && !y.ok())) {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_LhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok() || y.ok()) {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_NotLhsOrRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!x.ok() || y.ok()) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            x.value();

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_LhsOrNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok() || !y.ok()) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            y.value();

            x.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_NotLhsOrNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!x.ok() || !y.ok()) {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          } else {
            x.value();

            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_LhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (!(x.ok() || y.ok())) {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_NotLhsOrRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!(!x.ok() || y.ok())) {
            x.value();

            y.value();  // [[unsafe]]
          } else {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_LhsOrNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!(x.ok() || !y.ok())) {
            y.value();

            x.value();  // [[unsafe]]
          } else {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, IfThenElse_Not_NotLhsOrNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (!(!x.ok() || !y.ok())) {
        x.value();

        y.value();
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TerminatingIfThenBranch) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) return;

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.ok()) return;

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!x.ok() || !y.ok()) return;

          x.value();

          y.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TerminatingIfElseBranch) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.ok()) {
      } else {
        return;
      }

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) {
      } else {
        return;
      }

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TerminatingIfThenBranchInLoop) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (Make<bool>()) {
        if (!sor.ok()) continue;

        sor.value();
      }

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (Make<bool>()) {
        if (!sor.ok()) break;

        sor.value();
      }

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TernaryConditionalOperator) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      sor.ok() ? sor.value() : 21;

      sor.ok() ? 21 : sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      !sor.ok() ? 21 : sor.value();

      !sor.ok() ? sor.value() : 21;  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      !((__builtin_expect(false || (!(sor1.ok() && sor2.ok())), false)))
          ? (void)0
          : (void)1;
      do {
        sor1.value();  // [[unsafe]]
        sor2.value();  // [[unsafe]]
      } while (true);
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (Make<bool>()) sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (!sor.ok()) sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (!!sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (!!!sor.ok()) sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_LhsAndRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          while (x.ok() && y.ok()) {
            x.value();

            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_NotLhsAndRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() && y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() && y.ok()) y.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_LhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() && !y.ok()) x.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() && !y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_NotLhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() && !y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() && !y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_LhsAndRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() && y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() && y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_NotLhsAndRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() && y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() && y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_LhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() && !y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() && !y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_NotLhsAndNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() && !y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() && !y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_LhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() || y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() || y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_NotLhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() || y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() || y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_LhsOrNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() || !y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (x.ok() || !y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_NotLhsOrNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() || !y.ok()) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!x.ok() || !y.ok()) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_LhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() || y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() || y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_NotLhsOrRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() || y.ok())) x.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(!x.ok() || y.ok())) y.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_LhsOrNotRhs) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() || !y.ok())) x.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      while (!(x.ok() || !y.ok())) y.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_Not_NotLhsOrNotRhs) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          while (!(!x.ok() || !y.ok())) {
            x.value();

            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_AccessAfterStmt) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (sor.ok()) {
      }

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (!sor.ok()) {
      }

      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_TerminatingBranch_Return) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (!sor.ok()) return;

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (sor.ok()) return;

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_NestedIfWithBinaryCondition) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          while (Make<bool>()) {
            if (x.ok() && y.ok()) {
              x.value();

              y.value();
            }
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          while (Make<bool>()) {
            if (!(!x.ok() || !y.ok())) {
              x.value();

              y.value();
            }
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, While_ReassignValueInLoop) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = 3;
      while (Make<bool>()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = 3;
      while (Make<bool>()) {
        sor.value();  // [[unsafe]]

        sor = Make<STATUSOR_INT>();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = 3;
      while (Make<bool>()) {
        sor.value();

        sor = Make<STATUSOR_INT>();
        if (!sor.ok()) return;
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = 3;
      while (Make<bool>()) {
        sor.value();  // [[unsafe]]

        sor = Make<STATUSOR_INT>();
        if (!sor.ok()) continue;
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, BuiltinExpect) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (!__builtin_expect(!x.ok() || __builtin_expect(!y.ok(), true), false)) {
            x.value();

            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CopyConstructor) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT sor1 = Make<STATUSOR_INT>();
          auto sor2 = sor1;
          auto sor3 = sor2;
          if (sor1.ok()) {
            sor1.value();

            sor2.value();

            sor3.value();
          } else {
            sor1.value();  // [[unsafe]]

            sor2.value();  // [[unsafe]]

            sor3.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT sor1 = Make<STATUSOR_INT>();
          auto sor2 = sor1;
          auto sor3 = sor2;

          STATUS s = sor1.status();
          if (s.ok()) {
            sor1.value();

            sor2.value();

            sor3.value();
          } else {
            sor1.value();  // [[unsafe]]

            sor2.value();  // [[unsafe]]

            sor3.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          if (!x.ok()) return;

          STATUSOR_INT y = x;
          y.value();
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          if (x.ok()) {
            STATUSOR_INT y = x;
            y.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, MoveConstructor) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor1(42);
      STATUSOR_INT sor2(std::move(sor1));
      sor2.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor1 = Make<STATUSOR_INT>();
      STATUSOR_INT sor2(std::move(sor1));
      sor2.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CopyAssignment) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      if (sor.ok()) {
        sor = Make<STATUSOR_INT>();
        sor.value();  // [[unsafe]]
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      if (!sor.ok()) return;

      sor = Make<STATUSOR_INT>();
      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT x = Make<STATUSOR_INT>();
      if (x.ok()) {
        STATUSOR_INT y = x;
        x = Make<STATUSOR_INT>();

        y.value();

        x.value();  // [[unsafe]]
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          STATUSOR_INT y = x;
          if (!y.ok()) return;

          x.value();

          y = Make<STATUSOR_INT>();
          x.value();
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT bar;
    };

    void target(Foo foo) {
      foo.bar = Make<STATUSOR_INT>();
      if (foo.bar.ok()) {
        foo.bar.value();

        foo.bar = Make<STATUSOR_INT>();
        foo.bar.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, MoveAssignment) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor1(42);
      STATUSOR_INT sor2;
      sor2 = std::move(sor1);
      sor2.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor1 = Make<STATUSOR_INT>();
      STATUSOR_INT sor2;
      sor2 = std::move(sor1);
      sor2.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ShortCircuitingBinaryOperators) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_BOOL sor) {
      bool b = sor.ok() & sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_BOOL sor) {
      bool b = sor.ok() && sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_BOOL sor) {
      bool b = !sor.ok() && sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_BOOL sor) {
      bool b = sor.ok() || sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_BOOL sor) {
      bool b = !sor.ok() || sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (b || sor.ok()) {
        do {
          sor.value();  // [[unsafe]]
        } while (true);
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (__builtin_expect(b || sor.ok(), false)) {
        do {
          sor.value();  // [[unsafe]]
        } while (false);
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
          while (sor1.ok() && sor2.ok()) sor1.value();
          while (sor1.ok() && sor2.ok()) sor2.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, References) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT x = Make<STATUSOR_INT>();
      STATUSOR_INT& y = x;
      if (x.ok()) {
        x.value();

        y.value();
      } else {
        x.value();  // [[unsafe]]

        y.value();  // [[unsafe]]
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          STATUSOR_INT& y = x;
          if (y.ok()) {
            x.value();

            y.value();
          } else {
            x.value();  // [[unsafe]]

            y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          STATUSOR_INT& y = x;
          if (!y.ok()) return;

          x.value();

          y = Make<STATUSOR_INT>();
          x.value();  // [[unsafe]]
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_INT x = Make<STATUSOR_INT>();
          const STATUSOR_INT& y = x;
          if (!y.ok()) return;

          y.value();

          x = Make<STATUSOR_INT>();
          y.value();  // [[unsafe]]
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NoReturnAttribute) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    __attribute__((noreturn)) void f();

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) f();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void f();

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) f();

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      __attribute__((noreturn)) ~Foo();
      void Bar();
    };

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) Foo().Bar();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      ~Foo();
      void Bar();
    };

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) Foo().Bar();

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void f();
    __attribute__((noreturn)) void g();

    void target(STATUSOR_INT sor) {
      sor.ok() ? f() : g();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    __attribute__((noreturn)) void f();
    void g();

    void target(STATUSOR_INT sor) {
      !sor.ok() ? f() : g();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void f();
    void g();

    void target(STATUSOR_INT sor) {
      sor.ok() ? f() : g();

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void terminate() __attribute__((noreturn));

    void target(STATUSOR_INT sor) {
      sor.value();  // [[unsafe]]
      terminate();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void terminate() __attribute__((noreturn));

    void target(STATUSOR_INT sor) {
      if (sor.ok()) sor.value();
      terminate();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void terminate() __attribute__((noreturn));

    struct Foo {
      ~Foo() __attribute__((noreturn));
    };

    void target() {
      auto sor = Make<absl::StatusOr<Foo>>();
      !(false || !(sor.ok())) ? (void)0 : terminate();
      sor.value();
      terminate();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, DeclInLoop) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      while (auto ok = sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    using BoolAlias = bool;

    void target(STATUSOR_INT sor) {
      while (BoolAlias ok = sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      while (Make<bool>()) {
        STATUSOR_INT sor = Make<STATUSOR_INT>();
        sor.value();  // [[unsafe]]
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    using StatusOrInt = STATUSOR_INT;

    void target() {
      while (Make<bool>()) {
        StatusOrInt sor = Make<STATUSOR_INT>();
        sor.value();  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NonEvaluatedExprInCondition) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        bool unknown();

        void target(STATUSOR_INT sor) {
          if (unknown() && sor.ok()) sor.value();
          if (sor.ok() && unknown()) sor.value();
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        bool unknown();

        void target(STATUSOR_INT sor) {
          if (!(!unknown() || !sor.ok())) sor.value();
          if (!(!sor.ok() || !unknown())) sor.value();
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    bool unknown();

    void target(STATUSOR_INT sor) {
      if (unknown() || sor.ok()) sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    bool unknown();

    void target(STATUSOR_INT sor) {
      if (sor.ok() || unknown()) sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CorrelatedBranches) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (b || sor.ok()) {
        if (!b) sor.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (b && !sor.ok()) return;
      if (b) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (sor.ok()) b = true;
      if (b) sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (b) return;
      if (sor.ok()) b = true;
      if (b) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ConditionWithInitStmt) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      if (STATUSOR_INT sor = Make<STATUSOR_INT>(); sor.ok()) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      if (STATUSOR_INT sor = Make<STATUSOR_INT>(); !sor.ok())
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, DeadCode) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      bool b = false;
      if (b) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      bool b;
      b = false;
      if (b) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, TemporaryDestructors) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      sor.ok() ? sor.value() : Fatal().value();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      !sor.ok() ? Fatal().value() : sor.value();

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      b ? 0 : sor.ok() ? sor.value() : Fatal().value();

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      for (int i = 0; i < 10; i++) {
        (b && sor.ok()) ? sor.value() : Fatal().value();

        if (b) sor.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      for (int i = 0; i < 10; i++) {
        (b || !sor.ok()) ? Fatal().value() : 0;

        if (!b) sor.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      for (int i = 0; i < 10; i++) {
        (false || !(b && sor.ok())) ? Fatal().value() : 0;

        do {
          sor.value();
        } while (b);
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CheckMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK(sor.ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK(!sor.ok());
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, QcheckMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK(sor.ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK(!sor.ok());
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CheckOkMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK_OK(sor.status());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK_OK(sor);
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUS s = Make<STATUS>();
      CHECK_OK(s);
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, QcheckOkMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK_OK(sor.status());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK_OK(sor);
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUS s = Make<STATUS>();
      QCHECK_OK(s);
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CheckEqMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK_EQ(sor.status(), absl::OkStatus());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      CHECK_EQ(Make<STATUS>(), absl::OkStatus());
      CHECK_EQ(absl::OkStatus(), Make<STATUS>());
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, QcheckEqMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK_EQ(sor.status(), absl::OkStatus());
      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CheckNeMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      CHECK_NE(sor.status(), absl::OkStatus());
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, QcheckNeMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      QCHECK_NE(sor.status(), absl::OkStatus());
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Member) {
  // The following examples are not sound as there could be member calls between
  // the ok() and the value() calls that change the StatusOr value.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT bar;
    };

    void target() {
      Foo foo;
      if (foo.bar.ok()) foo.bar.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;
    };

    void target(Foo foo) {
      foo.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;
    };

    void target(Foo foo) {
      if (foo.sor.ok())
        foo.sor.value();
      else
        foo.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;
    };

    void target(Foo foo) {
      if (foo.sor.status().ok())
        foo.sor.value();
      else
        foo.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;

      void target() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }
    };
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;

      void target(bool b) {
        if (b) {
          if (!sor.ok()) return;
        } else {
          if (!sor.ok()) return;
        }
        sor.value();
      }
    };
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      struct Bar {
        STATUSOR_INT sor;

        void target() {
          if (sor.ok())
            sor.value();
          else
            sor.value();  // [[unsafe]]
        }
      };
    };
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;
    };

    void target() {
      Foo().sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, GlobalVars) {
  // The following examples are not sound as there could be opaque calls between
  // the ok() and the value() calls that change the StatusOr value.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    static STATUSOR_INT sor;

    void target() {
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      static STATUSOR_INT sor;
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      static STATUSOR_INT sor;
    };

    void target(Foo foo) {
      if (foo.sor.ok())
        foo.sor.value();
      else
        foo.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      static STATUSOR_INT sor;
    };

    void target() {
      if (Foo::sor.ok())
        Foo::sor.value();
      else
        Foo::sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      static STATUSOR_INT sor;

      static void target() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }
    };
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      static STATUSOR_INT sor;

      void target() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }
    };
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct S {
      static const int x = -1;
    };

    int target(S s) { return s.x; }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ReferenceReceivers) {
  // The following examples are not sound as there could be opaque calls between
  // the ok() and the value() calls that change the StatusOr value. However,
  // this is the behavior that users expect so it is here to stay.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT& sor) {
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT& sor;
    };

    void target(Foo foo) {
      if (foo.sor.ok())
        foo.sor.value();
      else
        foo.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Bar {
      STATUSOR_INT sor;
    };

    struct Foo {
      Bar& bar;
    };

    void target(Foo foo) {
      if (foo.bar.sor.ok())
        foo.bar.sor.value();
      else
        foo.bar.sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT& sor;
    };

    void target(Foo& foo) {
      if (foo.sor.ok())
        foo.sor.value();
      else
        foo.sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Lambdas) {
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      [](STATUSOR_INT sor) {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }(Make<STATUSOR_INT>());
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      [sor]() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }();
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      [&sor]() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }();
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      [sor2 = sor]() {
        if (sor2.ok())
          sor2.value();
        else
          sor2.value();  // [[unsafe]]
      }();
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      [&]() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }();
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      [=]() {
        if (sor.ok())
          sor.value();
        else
          sor.value();  // [[unsafe]]
      }();
    }
  )cc");
  ExpectDiagnosticsForLambda(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor;

      void target() {
        [this]() {
          if (sor.ok())
            sor.value();
          else
            sor.value();  // [[unsafe]]
        }();
      }
    };
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, GoodLambda) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    int target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      if (sor.ok()) return [&s = sor.value()] { return s; }();
      return 0;
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Status) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void foo();

    void target(STATUS s) {
      if (s.ok()) foo();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void foo();

    void target() {
      STATUS s = Make<STATUSOR_INT>().status();
      if (s.ok()) foo();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, StatusBranches) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_VOIDPTR sor;
      STATUS s;
      if (Make<bool>()) {
        s = absl::InvalidArgumentError("foo");
      } else {
        sor = Make<STATUSOR_VOIDPTR>();
        if (!sor.ok()) {
          s = sor.status();
        }
      }
      if (s.ok()) *sor;
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ExpectThatMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_THAT(sor, testing::status::IsOk());

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_THAT(sor.status(), testing::status::IsOk());

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      EXPECT_THAT(sor, testing::status::IsOk());

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ExpectOkMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_OK(sor);

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_OK(sor.status());

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      EXPECT_OK(sor);

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssertThatMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, testing::status::IsOk());

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, absl_testing::IsOk());

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor.status(), testing::status::IsOk());

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      ASSERT_THAT(sor, testing::status::IsOk());

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      using absl::StatusCode::kOk;
      ASSERT_THAT(sor, testing::status::StatusIs(kOk));

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, testing::status::StatusIs(absl::StatusCode::kOk));

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, testing::status::CanonicalStatusIs(absl::StatusCode::kOk));

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, absl_testing::CanonicalStatusIs(absl::StatusCode::kOk));

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      auto matcher = testing::status::StatusIs(absl::StatusCode::kOk);
      ASSERT_THAT(sor, matcher);

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      auto matcher = absl_testing::StatusIs(absl::StatusCode::kOk);
      ASSERT_THAT(sor, matcher);

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(
          sor, testing::status::StatusIs(absl::StatusCode::kInvalidArgument));

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, absl_testing::StatusIs(absl::StatusCode::kInvalidArgument));

      sor.value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, testing::status::IsOkAndHolds(testing::IsTrue()));

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_THAT(sor, absl_testing::IsOkAndHolds(testing::IsTrue()));

      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssertTrueMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_TRUE(sor.ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_TRUE(sor.status().ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_TRUE(!sor.ok());
      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      bool flag = true;

      ASSERT_TRUE(flag);
      "nop";
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_BOOL flag = true;

      ASSERT_TRUE(flag.value());
      "nop";
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ExpectTrueMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_TRUE(sor.ok());

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_TRUE(sor.status().ok());

      sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      EXPECT_TRUE(!sor.ok());

      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssertFalseMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_FALSE(!sor.ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_FALSE(!sor.status().ok());
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_FALSE(sor.ok());
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssertOkMacro) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_OK(sor);

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      ASSERT_OK(sor.status());

      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      ASSERT_OK(sor);

      sor.value();
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(std::optional<STATUSOR_INT> sor_opt) {
      STATUSOR_INT sor = *sor_opt;
      ASSERT_OK(sor);

      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, BreadthFirstBlockTraversalLoop) {
  // Evaluating the CFG blocks of the code below in breadth-first order results
  // in an infinite loop. Each iteration of the while loop below results in a
  // new value being assigned to the storage location of sor1. However,
  // following a bread-first order of evaluation, downstream blocks will join
  // environments of different generations of predecessor blocks having distinct
  // values assigned to the sotrage location of sor1, resulting in not assigning
  // a value to the storage location of sor1 in successors. As iterations of the
  // analysis go, the state of the environment flips between having a value
  // assigned to the storage location of sor1 and not having a value assigned to
  // it. Since the evaluation of the copy constructor expression in bar(sor1)
  // depends on a value being assigned to sor1, the state of the environment
  // also flips between having a storage location assigned to the bar(sor1)
  // expression and not having a storage location assigned to it. This leads to
  // an infinite loop as the environment can't stabilize.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void foo(int, int);
    STATUSOR_INT bar(STATUSOR_INT);
    void baz(int);

    void target() {
      while (true) {
        STATUSOR_INT sor1 = Make<STATUSOR_INT>();
        if (sor1.ok()) {
          STATUSOR_INT sor2 = Make<STATUSOR_INT>();
          if (sor2.ok()) foo(sor1.value(), sor2.value());
        }

        STATUSOR_INT sor3 = bar(sor1);
        for (int i = 0; i < 5; i++) sor3 = bar(sor1);

        baz(sor3.value());  // [[unsafe]]
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ReturnValue) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor = Make<STATUSOR_INT>();
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Goto) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
    label:
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
      goto label;
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
    label:
      if (!sor.ok()) goto label;
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (!sor.ok()) return;
      goto label;
    label:
      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, JoinDistinctValues) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor;
      if (b)
        sor = Make<STATUSOR_INT>();
      else
        sor = Make<STATUSOR_INT>();

      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor;
      if (b) {
        sor = Make<STATUSOR_INT>();
        if (!sor.ok()) return;
      } else {
        sor = Make<STATUSOR_INT>();
        if (!sor.ok()) return;
      }
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor;
      if (b) {
        sor = Make<STATUSOR_INT>();
        if (!sor.ok()) return;
      } else {
        sor = Make<STATUSOR_INT>();
      }
      sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, VarDeclInitExprFromPairAccess) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      auto sor = Make<std::pair<int, STATUSOR_INT>>().second;
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      const auto& sor = Make<std::pair<int, STATUSOR_INT>>().second;
      if (sor.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, LValueToRValueCastOfChangingValue) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    bool foo();

    void target(bool b1) {
      STATUSOR_INT sor;
      if (b1)
        sor = Make<STATUSOR_INT>();
      else
        sor = Make<STATUSOR_INT>();

      do {
        const auto& b2 = foo();
        if (b2) break;

        sor.value();  // [[unsafe]]
      } while (true);
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ConstructorInitializer) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    class target {
      target() : foo_(Make<STATUSOR_INT>().value()) {  // [[unsafe]]
      }
      int foo_;
    };
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssignStatusToBoolVar) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      bool ok = sor.ok();
      if (ok)
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      bool not_ok = !sor.ok();
      if (not_ok)
        sor.value();  // [[unsafe]]
      else
        sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, StructuredBindings) {
  // Binding to a pair (which is actually a struct in the mock header).
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      const auto [sor, x] = Make<std::pair<STATUSOR_INT, int>>();
      if (sor.ok()) sor.value();
    }
  )cc");

  // Unsafe case.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      const auto [sor, x] = Make<std::pair<STATUSOR_INT, int>>();
      sor.value();  // [[unsafe]]
    }
  )cc");

  // As a reference.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      const auto& [sor, x] = Make<std::pair<STATUSOR_INT, int>>();
      if (sor.ok()) sor.value();
    }
  )cc");

  // Binding to a ref in a struct.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct S {
      STATUSOR_INT& sor;
      int i;
    };

    void target() {
      const auto& [sor, i] = Make<S>();
      if (sor.ok()) sor.value();
    }
  )cc");

  // In a loop.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      auto vals = Make<std::vector<std::pair<int, STATUSOR_INT>>>();
      for (const auto& [x, sor] : vals)
        if (sor.ok()) sor.value();
    }
  )cc");

  // Similar to the above, but InitExpr already has the storage initialized,
  // and bindings refer to them.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      auto vals = Make<std::vector<std::pair<int, STATUSOR_INT>>>();
      for (const auto& p : vals) {
        const auto& [i, sor] = p;
        if (sor.ok()) sor.value();
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AssignCompositeLogicExprToVar) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor, bool b) {
          bool c = sor.ok() && b;
          if (c) sor.value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT sor, bool b) {
          bool c = !(!sor.ok() || !b);
          if (c) sor.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Subclass) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        class Foo : public STATUSOR_INT {};

        void target(Foo opt) {
          opt.value();  // [[unsafe]]
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, SubclassStatus) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        class Foo : public STATUS {};

        void target(Foo opt) { opt.ok(); }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, SubclassOk) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        class Foo : public STATUSOR_INT {};

        void target(Foo opt) {
          if (opt.ok()) opt.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, SubclassOperator) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        class Foo : public STATUSOR_INT {};

        void target(Foo opt) {
          *opt;  // [[unsafe]]
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UnwrapValueWithStatusCheck) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.status().ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UnwrapValueWithStatusRefCheck) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      const STATUS& s = sor.status();
      if (s.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UnwrapValueWithStatusPtrCheck) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      const STATUS* s = &sor.status();
      if (s->ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UnwrapValueWithMovedStatus) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (std::move(sor.status()).ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, MembersUsedInsideStatus) {
  ExpectDiagnosticsFor(R"cc(
    namespace absl {

    class Status {
     public:
      bool ok() const;

      void target() const { ok(); }
    };

    }  // namespace absl
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, StatusUpdate) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      STATUS s;
      s.Update(sor.status());
      if (s.ok())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      STATUS s;
      s.Update(sor1.status());
      s.Update(sor2.status());
      if (s.ok()) {
        sor1.value();
        sor2.value();
      }
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      STATUS s;
      s.Update(sor1.status());
      CHECK(s.ok());
      s.Update(sor2.status());
      sor1.value();
      sor2.value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      STATUS s;
      s.Update(sor1.status());
      CHECK(s.ok());
      sor1.value();
      sor2.value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      STATUS s;
      STATUS sor1_status = sor1.status();
      s.Update(std::move(sor1_status));
      CHECK(s.ok());
      sor1.value();
      sor2.value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor1, STATUSOR_INT sor2) {
      STATUS s;
      STATUS sor1_status = sor1.status();
      sor1_status.Update(sor2.status());
      s.Update(std::move(sor1_status));
      CHECK(s.ok());
      sor1.value();
      sor2.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    const STATUS& OptStatus();

    void target(STATUSOR_INT sor) {
      auto s = sor.status();
      s.Update(OptStatus());
      if (s.ok()) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, EqualityCheck) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (x == y)
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (y == x)
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (x != y)
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (y != x)
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (!(x == y))
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (!(x != y))
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x == y)
        if (x.ok()) y.value();
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (x.status() == y.status())
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (x.status() != y.status())
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.status() == absl::OkStatus())
        sor.value();
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.status() != absl::OkStatus())
        sor.value();  // [[unsafe]]
      else
        sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.status() != absl::InvalidArgumentError("oh no"))
        sor.value();  // [[unsafe]]
      else
        sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (x.ok() == y.ok())
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (x.ok() != y.ok())
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (x.status().ok() == y.status().ok())
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (x.status().ok() != y.status().ok())
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT x, STATUSOR_INT y) {
          if (x.ok()) {
            if (x.status().ok() == y.ok())
              y.value();
            else
              y.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT x, STATUSOR_INT y) {
      if (x.ok()) {
        if (x.status().ok() != y.ok())
          y.value();  // [[unsafe]]
        else
          y.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b, STATUSOR_INT sor) {
      if (sor.ok() == b) {
        if (b) sor.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.ok() == true) sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT sor) {
      if (sor.ok() == false) sor.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor1;
      STATUSOR_INT sor2 = Make<STATUSOR_INT>();
      if (sor1 == sor2) sor2.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor1 = Make<STATUSOR_INT>();
      STATUSOR_INT sor2;
      if (sor1 == sor2) sor1.value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PointerEqualityCheck) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT* x, STATUSOR_INT* y) {
          if (x->ok()) {
            if (x == y)
              y->value();
            else
              y->value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUSOR_INT* x, STATUSOR_INT* y) {
          if (x->ok()) {
            if (x != y)
              y->value();  // [[unsafe]]
            else
              y->value();
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUS* x, STATUS* y) {
          auto sor = Make<STATUSOR_INT>();
          if (x->ok()) {
            if (x == y && sor.status() == *y)
              sor.value();
            else
              sor.value();  // [[unsafe]]
          }
        }
      )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(STATUS* x, STATUS* y) {
          auto sor = Make<STATUSOR_INT>();
          if (x->ok()) {
            if (x != y)
              sor.value();  // [[unsafe]]
            else if (sor.status() == *y)
              sor.value();
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, Emplace) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      Foo(int);
    };

    void target(absl::StatusOr<Foo> sor, int value) {
      sor.emplace(value);
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      Foo(std::initializer_list<int>, int);
    };

    void target(absl::StatusOr<Foo> sor, int value) {
      sor.emplace({1, 2, 3}, value);
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT sor;
      bool sor_ok = sor.ok();
      if (!sor_ok)
        sor.emplace(42);
      sor.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(bool b) {
      STATUSOR_INT sor;
      if (b) sor.emplace(42);
      if (b) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ValueConstruction) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_BOOL result = false;
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result = 21;
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result = Make<STATUSOR_INT>();
      result.value(); // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_BOOL result = false;
          if (result.ok())
            result.value();
          else
            result.value();
        }
      )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_BOOL result(false);
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result(21);
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result(Make<STATUSOR_INT>());
      result.value(); // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_BOOL result(false);
          if (result.ok())
            result.value();
          else
            result.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ValueAssignment) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_BOOL result;
      result = false;
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result;
      result = 21;
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_INT result;
      result = Make<STATUSOR_INT>();
      result.value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          STATUSOR_BOOL result;
          result = false;
          if (result.ok())
            result.value();
          else
            result.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NestedStatusOr) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      absl::StatusOr<STATUSOR_INT> result;
      result = Make<STATUSOR_INT>();
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      absl::StatusOr<STATUSOR_INT> result = Make<STATUSOR_INT>();
      result.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      absl::StatusOr<STATUSOR_INT> result = Make<STATUSOR_INT>();
      if (result.value().ok())
        result.value().value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PtrConstruct) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_VOIDPTR sor = nullptr;
      *sor;
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_VOIDPTR sor(nullptr);
      *sor;
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, InPlaceConstruct) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      STATUSOR_VOIDPTR absl_sor(absl::in_place, {nullptr});
      *absl_sor;
      STATUSOR_VOIDPTR std_sor(std::in_place, {nullptr});
      *std_sor;
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ConstructStatusOrFromReference) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
    void target() {
      const auto sor1 = Make<STATUSOR_INT&>();
      const auto sor2 = Make<STATUSOR_INT&>();
      if (!sor1.ok() && !sor2.ok()) return;
      if (sor1.ok() && !sor2.ok()) {
      } else if (!sor1.ok() && sor2.ok()) {
      } else {
        sor1.value();
        sor2.value();
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ConstructStatusFromReference) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target() {
      const auto sor1 = Make<STATUSOR_INT&>();
      const auto sor2 = Make<STATUSOR_INT&>();
      const auto s1 = Make<STATUS&>();
      const auto s2 = Make<STATUS&>();

      if (!s1.ok() && !s2.ok()) return;
      if (s1.ok() && !s2.ok()) {
      } else if (!s1.ok() && s2.ok()) {
      } else {
        if (s1 != sor1.status() || s2 != sor2.status()) return;
        sor1.value();
        sor2.value();
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, AccessorCall) {
  // Accessor returns reference.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          const STATUSOR_INT& sor() const { return sor_; }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) foo.sor().value();
        }
      )cc");

  // Uses an operator
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          const STATUSOR_INT& operator()() const { return sor_; }
        };

        void target(Foo foo) {
          if (foo().ok()) foo().value();
        }
      )cc");

  // Calls nonconst method in between.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          void invalidate() {}

          const STATUSOR_INT& sor() const { return sor_; }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) {
            foo.invalidate();
            foo.sor().value();  // [[unsafe]]
          }
        }
      )cc");

  // Calls nonconst operator in between.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          void operator()() {}

          const STATUSOR_INT& sor() const { return sor_; }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) {
            foo();
            foo.sor().value();  // [[unsafe]]
          }
        }
      )cc");

  // Accessor returns copy.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          STATUSOR_INT sor() const { return sor_; }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) foo.sor().value();
        }
      )cc");

  // Non-const accessor.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          const STATUSOR_INT& sor() { return sor_; }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) foo.sor().value();  // [[unsafe]]
        }
      )cc");

  // Non-const rvalue accessor.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          STATUSOR_INT&& sor() { return std::move(sor_); }
        };

        void target(Foo foo) {
          if (foo.sor().ok()) foo.sor().value();  // [[unsafe]]
        }
      )cc");

  // const pointer accessor.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          const STATUSOR_INT* sor() const { return &sor_; }
        };

        void target(Foo foo) {
          if (foo.sor()->ok()) foo.sor()->value();
        }
      )cc");

  // const pointer operator.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          STATUSOR_INT sor_;

          const STATUSOR_INT* operator->() const { return &sor_; }
        };

        void target(Foo foo) {
          if (foo->ok()) foo->value();
        }
      )cc");

  // We copy the result of the accessor.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT sor_;

      const STATUSOR_INT& sor() const { return sor_; }
    };
    void target() {
      Foo foo;
      if (!foo.sor().ok()) return;
      const auto sor = foo.sor();
      sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PointerReceivers) {
  // The following examples are not sound as there could be opaque calls between
  // the ok() and the value() calls that change the StatusOr value. However,
  // this is the behavior that users expect so it is here to stay.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT* sor) {
      sor->value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT* sor) {
      sor->emplace(1);
      sor->value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUSOR_INT* sor) {
      if (sor->ok())
        sor->value();
      else
        sor->value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(STATUS* s) {
      STATUSOR_INT* sor = Make<STATUSOR_INT*>();
      if (!s->ok()) return;
      if (*s == sor->status())
        sor->value();
      else
        sor->value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT* sor;
    };

    void target(Foo foo) {
      if (foo.sor->ok())
        foo.sor->value();
      else
        foo.sor->value();  // [[unsafe]]
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      STATUSOR_INT* sor;
    };

    void target(Foo foo) {
      if (foo.sor->status().ok())
        foo.sor->value();
      else
        foo.sor->value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PointerReceiversWithSelfReferentials) {
  // Same as PointerReceivers, but with a self-referential pointer.
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Bar;
    struct Foo {
      STATUSOR_INT* sor;
      Bar* bar;
    };
    struct Bar {
      Foo* foo;
    };

    void target(Bar* bar) {
      if (bar->foo->sor->status().ok())
        bar->foo->sor->value();
      else
        bar->foo->sor->value();  // [[unsafe]]
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    struct Foo {
      Foo* next;
      STATUSOR_INT* sor;
    };

    void target(Foo* foo) {
      if (foo->next->sor->status().ok())
        // False positive, should be safe.
        foo->next->sor->value();  // [[unsafe]]
      else
        foo->next->sor->value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PointerReceiversWithUnion) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    union Foo {
      STATUSOR_INT* sor;
    };

    void target(Foo foo) {
      if (foo.sor->ok())
        foo.sor->value();
      else
        foo.sor->value();  // [[unsafe]]
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PointerLike) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    class Foo {
     public:
      std::pair<int, STATUSOR_VOIDPTR>& operator*() const;
      std::pair<int, STATUSOR_VOIDPTR>* operator->() const;
      bool operator!=(const Foo& other) const;
    };

    void target() {
      Foo foo;
      if (foo->second.ok() && *foo->second != nullptr) {
        *foo->second;
        (*foo).second.value();
      }
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    class Foo {
     public:
      std::pair<int, STATUSOR_INT>& operator*() const;
      std::pair<int, STATUSOR_INT>* operator->() const;
    };
    void target() {
      Foo foo;
      if (!foo->second.ok()) return;
      foo->second.value();
      (*foo).second.value();
    }
  )cc");
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    void target(std::pair<int, STATUSOR_VOIDPTR>* foo) {
      if (foo->second.ok() && *foo->second != nullptr) {
        *foo->second;
        (*foo).second.value();
      }
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UniquePtr) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          auto sor_up = Make<std::unique_ptr<STATUSOR_INT>>();
          if (sor_up->ok()) sor_up->value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, UniquePtrReset) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          auto sor_up = Make<std::unique_ptr<STATUSOR_INT>>();
          if (sor_up->ok()) {
            sor_up.reset(Make<STATUSOR_INT*>());
            sor_up->value();  // [[unsafe]]
          }
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NestedStatusOrInStatusOrStruct) {
  // Non-standard assignment with a nested StatusOr.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Inner {
          absl::StatusOr<std::string> sor;
        };

        struct Outer {
          absl::StatusOr<Inner> inner;
        };

        void target() {
          Outer foo = Make<Outer>();
          foo.inner->sor = "a";  // [[unsafe]]
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(const absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo->sor.ok()) foo->sor.value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(const absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo.value().sor.ok()) foo->sor.value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(const absl::StatusOr<Foo>& foo) {
          if (foo.ok() && (*foo).sor.ok()) (*foo).sor.value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo->sor.ok()) *foo->sor;
        }
      )cc");
  // With assignment.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo->sor.ok()) {
            foo->sor = Make<absl::StatusOr<std::string>>();
            foo->sor.value();  // [[unsafe]]
          }
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo->sor.ok()) {
            auto n = Make<absl::StatusOr<std::string>>();
            if (n.ok()) foo->sor = n;
            foo->sor.value();
          }
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo) {
          if (foo.ok() && foo->sor.ok()) {
            auto n = Make<absl::StatusOr<std::string>>();
            if (n.ok()) foo->sor = std::move(n);
            foo->sor.value();
          }
        }
      )cc");

  // More complicated conditionals.
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo) {
          if (!foo.ok()) return;
          if (!foo->sor.ok())
            foo->sor.value();  // [[unsafe]]
          else
            foo->sor.value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        struct Foo {
          absl::StatusOr<std::string> sor;
        };

        void target(absl::StatusOr<Foo>& foo, bool b) {
          if (!foo.ok()) return;
          if (b) {
            if (!foo->sor.ok()) return;
            foo->sor.value();
          } else {
            if (!foo->sor.ok()) return;
            foo->sor.value();
          }
          foo->sor.value();
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, StatusOrPtrReference) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    const STATUSOR_INT* foo();

    void target() {
      const auto& sor = foo();
      if (sor->ok()) sor->value();
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    using StatusOrPtr = const STATUSOR_INT*;
    StatusOrPtr foo();

    void target() {
      const auto& sor = foo();
      if (sor->ok()) sor->value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, StatusPtrReference) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    const STATUS* foo();

    void target(STATUSOR_INT sor) {
      const auto& s = foo();
      if (s->ok() && *s == sor.status()) sor.value();
    }
  )cc");

  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    using StatusPtr = const STATUS*;
    StatusPtr foo();

    void target(STATUSOR_INT sor) {
      const auto& s = foo();
      if (s->ok() && *s == sor.status()) sor.value();
    }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PairIterator) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    class iterator {
     public:
      const std::pair<int, absl::StatusOr<int>>* operator->() const;
    };
    void target() {
      if (auto it = Make<iterator>(); it->second.ok()) {
        it->second.value();
      }
    }
)cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, PairIteratorRef) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

    class iterator {
     public:
      const std::pair<int, absl::StatusOr<int>>& operator*() const;
    };
    void target() {
      if (auto it = Make<iterator>(); (*it).second.ok()) {
        (*it).second.value();
      }
    }
)cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, NestedStatusOrInOptional) {
  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target(std::optional<STATUSOR_INT> opt) {
          if (!opt.has_value()) return;
          if (!opt->ok()) return;
          **opt;
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          auto opt = Make<std::optional<STATUSOR_INT>>();
          if (opt.has_value() && opt->ok()) opt->value();
        }
      )cc");

  ExpectDiagnosticsFor(
      R"cc(
#include "unchecked_statusor_access_test_defs.h"

        void target() {
          auto opt = Make<std::optional<STATUSOR_INT>>();
          if (!opt.has_value()) return;

          if (opt->ok())
            opt->value();
          else
            opt->value();  // [[unsafe]]
        }
      )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CoroutineCoAwait) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
#include "task.h"

  Task<STATUSOR_INT> call(STATUSOR_INT sor) {
    if (sor.ok()) {
      sor.value();
    } else {
      sor.value();  // [[unsafe]]
    }
    co_return sor;
  }
  Task<int> target() {
    auto x = co_await call(Make<STATUSOR_INT>());
    if (x.ok()) {
      co_return x.value();
    } else {
      x.value();  // [[unsafe]]
      co_return 0;
    }
  }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CoroutineCoReturn) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
#include "task.h"

  Task<STATUSOR_INT> target(STATUSOR_INT sor) {
    if (sor.ok()) {
      sor.value();
    } else {
      sor.value();  // [[unsafe]]
    }
    co_return sor;
  }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, CoroutineCoReturnEnds) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"
#include "task.h"

  Task<int> target(STATUSOR_INT sor) {
    if (!sor.ok()) {
      co_return 0;
    }
    *sor;
    co_return 1;
  }
  )cc");
}

TEST_P(UncheckedStatusOrAccessModelTest, ReturnIfError) {
  ExpectDiagnosticsFor(R"cc(
#include "unchecked_statusor_access_test_defs.h"

  absl::Status target(STATUSOR_INT sor) {
    ABSL_RETURN_IF_ERROR(sor.status());
    *sor;
    return {};
  }
  )cc");
}

} // namespace

std::string
GetAliasMacros(UncheckedStatusOrAccessModelTestAliasKind AliasKind) {
  switch (AliasKind) {
  case UncheckedStatusOrAccessModelTestAliasKind::kUnaliased:
    return R"cc(
#define STATUSOR_INT ::absl::StatusOr<int>
#define STATUSOR_BOOL ::absl::StatusOr<bool>
#define STATUSOR_VOIDPTR ::absl::StatusOr<void*>
#define STATUS ::absl::Status
      )cc";
  case UncheckedStatusOrAccessModelTestAliasKind::kPartiallyAliased:
    return R"cc(
        template <typename T>
        using StatusOrAlias = ::absl::StatusOr<T>;
#define STATUSOR_INT StatusOrAlias<int>
#define STATUSOR_BOOL StatusOrAlias<bool>
#define STATUSOR_VOIDPTR StatusOrAlias<void*>
#define STATUS ::absl::Status
      )cc";
  case UncheckedStatusOrAccessModelTestAliasKind::kFullyAliased:
    return R"cc(
        using StatusOrIntAlias = ::absl::StatusOr<int>;
#define STATUSOR_INT StatusOrIntAlias
        using StatusOrBoolAlias = ::absl::StatusOr<bool>;
#define STATUSOR_BOOL StatusOrBoolAlias
        using StatusOrVoidPtrAlias = ::absl::StatusOr<void*>;
#define STATUSOR_VOIDPTR StatusOrVoidPtrAlias
        using StatusAlias = ::absl::Status;
#define STATUS StatusAlias
      )cc";
  }
  llvm_unreachable("Unknown alias kind.");
}

std::vector<std::pair<std::string, std::string>>
GetHeaders(UncheckedStatusOrAccessModelTestAliasKind AliasKind) {
  auto Headers = test::getMockHeaders();

  Headers.emplace_back("unchecked_statusor_access_test_defs.h",
                       R"cc(
#include "cstddef.h"
#include "statusor_defs.h"
#include "std_optional.h"
#include "std_vector.h"
#include "std_pair.h"
#include "absl_log.h"
#include "testing_defs.h"
#include "std_unique_ptr.h"

                             template <typename T>
                             T Make();

                             class Fatal {
                              public:
                               ~Fatal() __attribute__((noreturn));
                               int value();
                             };
                       )cc" +
                           GetAliasMacros(AliasKind));
  return Headers;
}
} // namespace clang::dataflow::statusor_model