PowerToys/src/modules/keyboardmanager/test/MockedInputSanityTests.cpp

#include "pch.h"
#include "CppUnitTest.h"
#include "MockedInput.h"
#include <keyboardmanager/common/KeyboardManagerState.h>
#include <keyboardmanager/dll/KeyboardEventHandlers.h>
#include "TestHelpers.h"

using namespace Microsoft::VisualStudio::CppUnitTestFramework;

namespace RemappingLogicTests
{
    // Tests for MockedInput test helper - to ensure simulated keyboard input behaves as expected
    TEST_CLASS (MockedInputSanityTests)
    {
    private:
        MockedInput mockedInputHandler;
        KeyboardManagerState testState;

    public:
        TEST_METHOD_INITIALIZE(InitializeTestEnv)
        {
            // Reset test environment
            TestHelpers::ResetTestEnv(mockedInputHandler, testState);
        }

        // Test if mocked input is working
        TEST_METHOD (MockedInput_ShouldSetKeyboardState_OnKeyEvent)
        {
            // Send key down and key up for A key (0x41) and check keyboard state both times
            const int nInputs = 1;
            INPUT input[nInputs] = {};
            input[0].type = INPUT_KEYBOARD;
            input[0].ki.wVk = 0x41;

            // Send A keydown
            mockedInputHandler.SendVirtualInput(nInputs, input, sizeof(INPUT));

            // A key state should be true
            Assert::AreEqual(mockedInputHandler.GetVirtualKeyState(0x41), true);
            input[0].ki.dwFlags = KEYEVENTF_KEYUP;

            // Send A keyup
            mockedInputHandler.SendVirtualInput(nInputs, input, sizeof(INPUT));

            // A key state should be false
            Assert::AreEqual(mockedInputHandler.GetVirtualKeyState(0x41), false);
        }
    };
}