/// <summary>
/// Display the failure information for two collections that did not match.
/// </summary>
/// <param name="writer">The MessageWriter on which to display</param>
/// <param name="expected">The expected collection.</param>
/// <param name="actual">The internalActual collection</param>
/// <param name="depth">The depth of this failure in a set of nested collections</param>
private void DisplayCollectionDifferences(MessageWriter writer, ICollection expected, ICollection actual,
int depth)
{
DisplayTypesAndSizes(writer, expected, actual, depth);
if (comparer.FailurePoints.Count > depth)
{
FailurePoint failurePoint = comparer.FailurePoints[depth];
DisplayFailurePoint(writer, expected, actual, failurePoint, depth);
if (failurePoint.ExpectedHasData && failurePoint.ActualHasData)
{
DisplayDifferences(
writer,
failurePoint.ExpectedValue,
failurePoint.ActualValue,
++depth);
}
else if (failurePoint.ActualHasData)
{
writer.Write(" Extra: ");
writer.WriteCollectionElements(actual, failurePoint.Position, 3);
}
else
{
writer.Write(" Missing: ");
writer.WriteCollectionElements(expected, failurePoint.Position, 3);
}
}
}