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54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
//===-- common_test.cpp -----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "internal_defs.h"
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#include "tests/scudo_unit_test.h"
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#include "common.h"
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#include "mem_map.h"
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#include <errno.h>
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#include <string.h>
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#include <sys/mman.h>
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namespace scudo {
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TEST(ScudoCommonTest, IsPowerOfTwo) {
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EXPECT_FALSE(isPowerOfTwo(0));
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EXPECT_TRUE(isPowerOfTwo(1));
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EXPECT_TRUE(isPowerOfTwo(2));
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EXPECT_TRUE(isPowerOfTwo(4));
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EXPECT_FALSE(isPowerOfTwo(3));
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}
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TEST(ScudoCommonTest, ComputePercentage) {
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uptr Integral, Fractional;
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computePercentage(50, 100, &Integral, &Fractional);
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EXPECT_EQ(Integral, 50U);
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EXPECT_EQ(Fractional, 0U);
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computePercentage(1, 3, &Integral, &Fractional);
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EXPECT_EQ(Integral, 33U);
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EXPECT_EQ(Fractional, 33U);
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computePercentage(2, 3, &Integral, &Fractional);
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EXPECT_EQ(Integral, 66U);
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EXPECT_EQ(Fractional, 67U);
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computePercentage(0, 0, &Integral, &Fractional);
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EXPECT_EQ(Integral, 100U);
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EXPECT_EQ(Fractional, 0U);
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}
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TEST(ScudoCommonTest, IsAlignedSlow) {
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EXPECT_TRUE(isAlignedSlow(64, 16));
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EXPECT_FALSE(isAlignedSlow(65, 16));
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}
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} // namespace scudo
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