/// <summary>
/// Displays a single line showing the point in the expected and actual
/// arrays at which the comparison failed. If the arrays have different
/// structures or dimensions, both values are shown.
/// </summary>
/// <param name="writer">The MessageWriter on which to display</param>
/// <param name="expected">The expected array</param>
/// <param name="actual">The actual array</param>
/// <param name="failurePoint">Index of the failure point in the underlying collections</param>
/// <param name="indent">The indentation level for the message line</param>
private static void DisplayFailurePoint( MessageWriter writer, ICollection expected, ICollection actual, int failurePoint, int indent )
{
Array expectedArray = expected as Array;
Array actualArray = actual as Array;
int expectedRank = expectedArray != null ? expectedArray.Rank : 1;
int actualRank = actualArray != null ? actualArray.Rank : 1;
bool useOneIndex = expectedRank == actualRank;
if ( expectedArray != null && actualArray != null )
{
for (int r = 1; r < expectedRank && useOneIndex; r++)
{
if ( expectedArray.GetLength( r ) != actualArray.GetLength( r ) )
{
useOneIndex = false;
}
}
}
int[] expectedIndices = MsgUtils.GetArrayIndicesFromCollectionIndex( expected, failurePoint );
if ( useOneIndex )
{
writer.WriteMessageLine( indent, Resources.ValuesDiffer_1, MsgUtils.GetArrayIndicesAsString( expectedIndices ) );
}
else
{
int[] actualIndices = MsgUtils.GetArrayIndicesFromCollectionIndex( actual, failurePoint );
writer.WriteMessageLine( indent,
Resources.ValuesDiffer_2,
MsgUtils.GetArrayIndicesAsString( expectedIndices ),
MsgUtils.GetArrayIndicesAsString( actualIndices ) );
}
}
/// <summary>
/// Displays the stream differences.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="expected">The expected.</param>
/// <param name="actual">The actual.</param>
/// <param name="depth">The depth.</param>
private void DisplayStreamDifferences( MessageWriter writer, Stream expected, Stream actual, int depth )
{
if ( expected.Length == actual.Length )
{
long offset = _failurePoints[depth];
writer.WriteMessageLine( Resources.StreamsDiffer_1, expected.Length, offset );
}
else
{
writer.WriteMessageLine( Resources.StreamsDiffer_2, expected.Length, actual.Length );
}
}
/// <summary>
/// Displays a single line showing the types and sizes of the expected
/// and actual collections or arrays. If both are identical, the value
/// is only shown once.
/// </summary>
/// <param name="writer">The MessageWriter on which to display</param>
/// <param name="expected">The expected collection or array</param>
/// <param name="actual">The actual collection or array</param>
/// <param name="indent">The indentation level for the message line</param>
private static void DisplayCollectionTypesAndSizes( MessageWriter writer, ICollection expected, ICollection actual, int indent )
{
string sExpected = MsgUtils.GetTypeRepresentation( expected );
if ( !( expected is Array ) )
{
sExpected += string.Format( CultureInfo.CurrentCulture, Resources.WithElements_1, expected.Count );
}
string sActual = MsgUtils.GetTypeRepresentation( actual );
if ( !( actual is Array ) )
{
sActual += string.Format( CultureInfo.CurrentCulture, Resources.WithElements_1, expected.Count );
}
if ( sExpected == sActual )
{
writer.WriteMessageLine( indent, Resources.CollectionType_1, sExpected );
}
else
{
writer.WriteMessageLine( indent, Resources.CollectionType_2, sExpected, sActual );
}
}
/// <summary>
/// Displays the string differences.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="expected">The expected.</param>
/// <param name="actual">The actual.</param>
private void DisplayStringDifferences( MessageWriter writer, string expected, string actual )
{
int mismatch = MsgUtils.FindMismatchPosition( expected, actual, 0, CaseInsensitive );
if ( expected.Length == actual.Length )
{
writer.WriteMessageLine( Resources.StringsDiffer_1, expected.Length, mismatch );
}
else
{
writer.WriteMessageLine( Resources.StringsDiffer_2, expected.Length, actual.Length, mismatch );
}
writer.DisplayStringDifferences( expected, actual, mismatch, CaseInsensitive );
}