/// <summary> Compares screenshot of an element </summary>
/// <param name="driver">Driver</param>
/// <param name="baselineImageDir">Baseline screenshot directory</param>
/// <param name="baselineImageName">Baseline screenshot name</param>
/// <param name="element">Web element</param>
/// <param name="tolerance"></param>
public static void CompareElementImage(IWebDriver driver, string baselineImageDir, string baselineImageName, IWebElement element, double tolerance = 0.1)
{
var timeStamp = TimeStamp();
var copiedBaselineImageFileName = timeStamp + "-" + baselineImageName + "-Expected";
var actualImageFileName = timeStamp + "-" + baselineImageName + "-Actual";
var diffImageFileName = timeStamp + "-" + baselineImageName + "-Diff";
var baselineImage = baselineImageDir + baselineImageName + ".png";
var copiedBaselineImage = ComparisonDir + copiedBaselineImageFileName + ".png";
var diffImage = ComparisonDir + diffImageFileName + ".png";
Directory.CreateDirectory(ComparisonDir);
#if NETFRAMEWORK
var actualImage = CaptureElementBitmap(driver, ComparisonDir, actualImageFileName, element);
#else
var actualImage = CaptureElementBitmap(driver, ComparisonDir, actualImageFileName, element);
#endif
File.Copy(baselineImage, copiedBaselineImage);
ImageOperations.CompareResult result = ImageOperations.CompareImage(copiedBaselineImage, actualImage, diffImage, tolerance);
Log.Info("result: " + result);
if (result != ImageOperations.CompareResult.Match)
{
Assert.Fail("Web element image is not the same within tolerance value " + tolerance);
}
}
/// <summary> Compares image of entire Web browser window</summary>
/// <param name="driver">Driver</param>
/// <param name="baselineImageDir">Baseline image directory</param>
/// <param name="baselineImageName">Baseline image name</param>
/// <param name="tolerance">Comparison tolerance</param>
public static void CompareWindow(IWebDriver driver, string baselineImageDir, string baselineImageName, double tolerance = 0.9)
{
var timeStamp = TimeStamp();
var copiedBaselineImageFileName = timeStamp + "-" + baselineImageName + "-Expected";
var actualImageFileName = timeStamp + "-" + baselineImageName + "-Actual";
var diffImageFileName = timeStamp + "-" + baselineImageName + "-Diff";
var baselineImage = baselineImageDir + baselineImageName + ".png";
var copiedBaselineImage = ComparisonDir + copiedBaselineImageFileName + ".png";
var diffImage = ComparisonDir + diffImageFileName + ".png";
Directory.CreateDirectory(ComparisonDir);
var actualImage = SaveScreenShot(driver, ComparisonDir, actualImageFileName);
File.Copy(baselineImage, copiedBaselineImage);
ImageOperations.CompareResult result = ImageOperations.CompareImage(copiedBaselineImage, actualImage, diffImage, tolerance);
Log.Info("result: " + result);
if (result != ImageOperations.CompareResult.Match)
{
Assert.Fail("Window image is not the same within tolerance value " + tolerance);
}
}
