private static void AreEqualImpl(
FileInfo expected,
Rectangle expectedRect,
FileInfo actual,
Bitmap actualBitmap,
Rectangle actualRect,
double expectedToActualScale,
PixelTolerance tolerance,
int line)
{
if (expectedRect != FirstQuadrant && actualRect != FirstQuadrant)
{
Assert.AreEqual(expectedRect.Size, actualRect.Size, WithContext("Compare rects don't have the same size"));
}
using (var expectedBitmap = new Bitmap(expected.FullName))
{
if (expectedRect == FirstQuadrant && actualRect == FirstQuadrant)
{
var effectiveExpectedBitmapSize = new Size(
(int)(expectedBitmap.Size.Width * expectedToActualScale),
(int)(expectedBitmap.Size.Height * expectedToActualScale));
Assert.AreEqual(effectiveExpectedBitmapSize, actualBitmap.Size, WithContext("Screenshots don't have the same size"));
}
expectedRect = Normalize(expectedRect, expectedBitmap.Size);
actualRect = Normalize(actualRect, actualBitmap.Size);
var expectedPixels = ExpectedPixels
.At(actualRect.Location)
.Pixels(expectedBitmap, expectedRect)
.Named(expected.Name)
.WithTolerance(tolerance);
var report = GetContext();
if (Validate(expectedPixels, actualBitmap, expectedToActualScale, report))
{
Console.WriteLine(report.ToString());
}
else
{
Assert.Fail(report.ToString());
}
}
StringBuilder GetContext()
=> new StringBuilder()
.AppendLine($"ImageAssert.AreEqual @ line {line}")
.AppendLine("pixelTolerance: " + tolerance)
.AppendLine("expected: " + expected?.Name + (expectedRect == FirstQuadrant ? null : $" in {expectedRect}"))
.AppendLine("actual : " + (actual?.Name ?? "--unknown--") + (actualRect == FirstQuadrant ? null : $" in {actualRect}"))
.AppendLine("====================");
string WithContext(string message)
=> GetContext()
.AppendLine(message)
.ToString();
}
private static (bool areEqual, string context) EqualityCheck(
ScreenshotInfo expected,
Rectangle expectedRect,
ScreenshotInfo actual,
Bitmap actualBitmap,
Rectangle actualRect,
double expectedToActualScale,
PixelTolerance tolerance,
[CallerLineNumber] int line = 0)
{
if (expectedRect != FirstQuadrant && actualRect != FirstQuadrant)
{
Assert.AreEqual(expectedRect.Size, actualRect.Size, WithContext("Compare rects don't have the same size"));
}
using (var expectedBitmap = new Bitmap(expected.File.FullName))
{
if (expectedRect == FirstQuadrant && actualRect == FirstQuadrant)
{
var effectiveExpectedBitmapSize = new Size(
(int)(expectedBitmap.Size.Width * expectedToActualScale),
(int)(expectedBitmap.Size.Height * expectedToActualScale));
Assert.AreEqual(effectiveExpectedBitmapSize, actualBitmap.Size, WithContext("Screenshots don't have the same size"));
}
expectedRect = Normalize(expectedRect, expectedBitmap.Size);
actualRect = Normalize(actualRect, actualBitmap.Size);
var expectedPixels = ExpectedPixels
.At(actualRect.Location)
.Pixels(expectedBitmap, expectedRect)
.Named(expected.StepName)
.WithTolerance(tolerance);
var report = GetContext();
var result = Validate(expectedPixels, actualBitmap, expectedToActualScale, report);
return(result, report.ToString());
}
StringBuilder GetContext()
=> new StringBuilder()
.AppendLine($"ImageAssert.AreEqual @ line {line}")
.AppendLine("pixelTolerance: " + tolerance)
.AppendLine($"expected: {expected?.StepName} ({expected?.File.Name}){(expectedRect == FirstQuadrant ? null : $" in {expectedRect}")}")