/// <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 actual 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)
{
int failurePoint = comparer.FailurePoints.Count > depth ? (int)comparer.FailurePoints[depth] : -1;
DisplayCollectionTypesAndSizes(writer, expected, actual, depth);
if (failurePoint >= 0)
{
DisplayFailurePoint(writer, expected, actual, failurePoint, depth);
if (failurePoint < expected.Count && failurePoint < actual.Count)
{
DisplayDifferences(
writer,
GetValueFromCollection(expected, failurePoint),
GetValueFromCollection(actual, failurePoint),
++depth);
}
else if (expected.Count < actual.Count)
{
writer.Write(" Extra: ");
writer.WriteCollectionElements(actual, failurePoint, 3);
}
else
{
writer.Write(" Missing: ");
writer.WriteCollectionElements(expected, failurePoint, 3);
}
}
}