public void VerifyWindowAppearance()
{
ApplicationDriver driver = new ApplicationDriver(typeof(SampleApp.App));
driver.WaitForIdleUi();
AutomationElement window = AutomationUtilities.FindElementsById(AutomationElement.RootElement, "sampleAppWindow")[0];
AutomationElement styleBox = AutomationUtilities.FindElementsById(window, "styleBox")[0];
AutomationElement captureRegion = AutomationUtilities.FindElementsById(window, "captureContainer")[0];
AutomationHelpers.MoveToAndClick(styleBox);
driver.WaitForIdleUi();
try
{
// Capture the actual pixels from the bounds of the screen rectangle
Snapshot actual = Snapshot.FromRectangle(AutomationHelpers.GetElementSize(captureRegion));
LogFile(actual, "Actual.png");
// Load the reference/master data from a previously saved file
Snapshot master = Snapshot.FromFile(Path.Combine(TestContext.TestDeploymentDir, "Master0.png"));
LogFile(master, "Master.png");
// Log the outcome of the test, only on failure to save disk space.
// For test stability in scenarios of varying window styles, consider:
// -cropping the capture region to eliminate the border rectangle
// -Testing on a well controlled test environment
if (CompareImages(actual, master) == VerificationResult.Fail)
{
Assert.Fail("Initial State test failed. Actual should look like Master image. Refer to logged images under:" + TestContext.TestLogsDir);
}
}
finally
{
AutomationHelpers.CloseWindow(window);
driver.Join();
}
}