windows-user-space-emulator/src/windows-emulator-test/emulation_test.cpp

#include "emulation_test_utils.hpp"

namespace test
{
    TEST(EmulationTest, BasicEmulationWorks)
    {
        auto emu = create_sample_emulator();
        emu.start();

        ASSERT_TERMINATED_SUCCESSFULLY(emu);
    }

    TEST(EmulationTest, CountedEmulationWorks)
    {
        constexpr auto count = 200000;

        auto emu = create_sample_emulator();
        emu.start({}, count);

        ASSERT_EQ(emu.process().executed_instructions, count);
    }

    TEST(EmulationTest, CountedEmulationIsAccurate)
    {
        auto emu = create_sample_emulator();
        emu.start();

        ASSERT_TERMINATED_SUCCESSFULLY(emu);

        const auto executedInstructions = emu.process().executed_instructions;

        auto new_emu = create_sample_emulator();

        constexpr auto offset = 1;
        const auto instructionsToExecute = executedInstructions - offset;

        new_emu.start({}, instructionsToExecute);

        ASSERT_EQ(new_emu.process().executed_instructions, instructionsToExecute);
        ASSERT_NOT_TERMINATED(new_emu);

        new_emu.start({}, offset);

        ASSERT_TERMINATED_SUCCESSFULLY(new_emu);
        ASSERT_EQ(new_emu.process().executed_instructions, executedInstructions);
    }
}