protected void AssertVisual(string expectedHash, VisualElement root, int width = 1920, int height = 1080)
{
var testMethod = new StackTrace().GetFrame(1)?.GetMethod();
var testMethodName = $"{testMethod?.ReflectedType?.Name}_{testMethod?.Name}";
var surface = new IxenSurface(root);
surface.ComputeLayout(width, height);
SKBitmap bitmap = surface.RenderToBitmap();
byte[] md5hash = _md5.ComputeHash(bitmap.Bytes);
string hash = Convert.ToHexString(md5hash).ToLower();
string fileExpectedPath = Path.Combine(_outputRendersDir, $"{testMethodName}_EXPECTED.png");
string fileErrorPath = Path.Combine(_outputRendersDir, $"{testMethodName}_NOK.png");
if (expectedHash == hash)
{
File.Delete(fileErrorPath);
if (!File.Exists(fileExpectedPath))
{
DumpBitmapToFile(fileExpectedPath, bitmap);
}
}
else
{
DumpBitmapToFile(fileErrorPath, bitmap);
Assert.Fail();
}
}
private void OnPaint(int width, int height)
{
_pixelBuffer.EnsureAlloc(width, height);
_ixenSurface.ComputeLayout(width, height);
_skImageInfo = new SKImageInfo(width, height, SKColorType.Bgra8888, SKAlphaType.Premul);
_painted = false;
try
{
using (_skSurface = SKSurface.Create(_skImageInfo, _pixelBuffer.Ptr, _pixelBuffer.RowBytes))
{
if (_skSurface != null)
{
_ixenSurface.Render(_skSurface.Canvas);
_painted = true;
}
}
}
finally
{
if (_painted)
{
WindowApi.SetWindowPixelsBuffer(_windowPtr, _pixelBuffer.Ptr);
}
}
}
