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from Tensile.Components.CMSValidator import verify_ascending_order
from cms_validation_base import CMSValidationTestBase

class TestValidateDescendingOrder(CMSValidationTestBase):
    needs_timeline = False

    def validation_function(self, sched, kernel_dict, codePathIdx, timeline=None):
        return verify_ascending_order(sched, kernel_dict, codePathIdx)

    def test_non_descending_order_failure(self):
        """
        Test that validation fails when instructions appear in descending order.
        """
        optSchedule = {"P": [[3, 2, 1]]}
        expected = "Non-descending-order rule failed, schedule key 'P', sequence [3, 2, 1]: value 2 at index 1 is less than 3 at index 0."
        self.validate(optSchedule, [], 1, None, None, 0, expected)

    def test_non_descending_order_success(self):
        """
        Test that validation passes when instructions appear in non-descending order.
        """
        optSchedule = {"P": [[1, 1, 2]]}
        self.validate(optSchedule, [], 1, None, None, 0, None)