LayoutTests/ipc/get-error-string.html

<!doctype html><!-- webkit-test-runner [ IPCTestingAPIEnabled=true ] -->
<title>Test that IPC error strings can be retrieved after validation failures</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<body>
<script>
promise_test(async (t) => {        
    if (!window.IPC) {
        done();
        return;
    }

    const { CoreIPC } = await import('./coreipc.js');

    // IPCTester has a CheckTestParameter message which has the following validations:
    //  - Parameter validation for `value > 10`
    //  - MESSAGE_CHECK for `value < 100`

    // Test case 1: Value = 10, that should fail IPC validation
    CoreIPC.GPU.IPCTester.CheckTestParameter(0, { param: { value: 10 } });
    CoreIPC.GPU.GPUConnectionToWebProcess.TakeInvalidMessageStringForTesting(0, {}, (reply) => {
        const errorString = reply.error;
        assert_true(errorString != "", "Error string should be set for value 10 (IPC validation failure)");
        assert_true(errorString.includes("Validation failed") && errorString.includes("value > 10"), 
                    `Error string should contain IPC validator message for value 10, got: "${errorString}"`);
    });

    // Test case 2: Value = 99, boundary value that should pass both validations
    CoreIPC.GPU.IPCTester.CheckTestParameter(0, { param: { value: 99 } });
    CoreIPC.GPU.GPUConnectionToWebProcess.TakeInvalidMessageStringForTesting(0, {}, (reply) => {
        const errorString = reply.error;
        assert_true(errorString == "", "Value 99 should pass validation");
    });

    // Test case 3: Value = 100, boundary value that should pass IPC validation but fail MESSAGE_CHECK
    CoreIPC.GPU.IPCTester.CheckTestParameter(0, { param: { value: 100 } });
    CoreIPC.GPU.GPUConnectionToWebProcess.TakeInvalidMessageStringForTesting(0, {}, (reply) => {
        const errorString = reply.error; 
        assert_true(errorString != "", "Error string should be set for value 100 (MESSAGE_CHECK failure)");
        assert_true(errorString.includes("Message check failed") && errorString.includes("Test parameter must be less than 100"),
            `Error string should contain MESSAGE_CHECK message for value 100, got: "${errorString}"`);
    });

    // Test case 4: Value = 200, should pass IPC validation but fail MESSAGE_CHECK
    CoreIPC.GPU.IPCTester.CheckTestParameter(0, { param: { value: 200 } });
    CoreIPC.GPU.GPUConnectionToWebProcess.TakeInvalidMessageStringForTesting(0, {}, (reply) => {
        const errorString = reply.error;
        assert_true(errorString != "", "Error string should be set for value 200 (MESSAGE_CHECK failure)");
        assert_true(errorString.includes("Message check failed") && errorString.includes("Test parameter must be less than 100"),
            `Error string should contain MESSAGE_CHECK message for value 200, got: "${errorString}"`);
    });
}, "IPC error string retrieval after validation failure");

done();
</script>
</body>