public void Simplify(string leftDocument, string rightDocument, int expectedNumberOfDiffs)
{
DiffSet originalDiffSet = DiffSet.GetDiffSet(leftDocument, rightDocument);
DiffSet simplifiedDiffSet = originalDiffSet.Simplify();
using (TestLog.BeginSection("Original DiffSet"))
originalDiffSet.WriteTo(TestLog.Default);
using (TestLog.BeginSection("Simplified DiffSet"))
simplifiedDiffSet.WriteTo(TestLog.Default);
VerifyDiffSetIsValid(simplifiedDiffSet);
Assert.LessThanOrEqualTo(simplifiedDiffSet.Diffs.Count, originalDiffSet.Diffs.Count);
Assert.AreEqual(expectedNumberOfDiffs, simplifiedDiffSet.Diffs.Count);
}
/// <summary>
/// Adds two raw labeled values formatted using <see cref="Formatter" /> and includes
/// formatting of their differences.
/// </summary>
/// <remarks>
/// <para>
/// The order in which this method is called determines the order in which the
/// values will appear relative to other labeled values.
/// </para>
/// </remarks>
/// <param name="leftLabel">The left label.</param>
/// <param name="leftValue">The left value.</param>
/// <param name="rightLabel">The right label.</param>
/// <param name="rightValue">The right value.</param>
/// <returns>The builder, to allow for fluent method chaining.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="leftLabel"/> or
/// <paramref name="rightLabel"/> is null.</exception>
public AssertionFailureBuilder AddRawLabeledValuesWithDiffs(
string leftLabel, object leftValue, string rightLabel, object rightValue)
{
if (leftLabel == null)
{
throw new ArgumentNullException("leftLabel");
}
if (rightLabel == null)
{
throw new ArgumentNullException("rightLabel");
}
if (ReferenceEquals(leftValue, rightValue))
{
AddRawLabeledValue(String.Format("{0} & {1}", leftLabel, rightLabel), leftValue);
AddLabeledValue("Remark", "Both values are the same instance.");
}
else
{
string formattedLeftValue = Formatter.Format(leftValue);
string formattedRightValue = Formatter.Format(rightValue);
if (formattedLeftValue == formattedRightValue)
{
AddLabeledValue(String.Format("{0} & {1}", leftLabel, rightLabel), formattedLeftValue);
AddLabeledValue("Remark", "Both values look the same when formatted but they are distinct instances.");
}
else
{
DiffSet diffSet = DiffSet.GetDiffSet(formattedLeftValue, formattedRightValue);
diffSet = diffSet.Simplify();
var highlightedLeftValueWriter = new StructuredTextWriter();
var highlightedRightValueWriter = new StructuredTextWriter();
diffSet.WriteTo(highlightedLeftValueWriter, DiffStyle.LeftOnly,
formattedLeftValue.Length <= AssertionFailure.MaxFormattedValueLength ? int.MaxValue : CompressedDiffContextLength);
diffSet.WriteTo(highlightedRightValueWriter, DiffStyle.RightOnly,
formattedRightValue.Length <= AssertionFailure.MaxFormattedValueLength ? int.MaxValue : CompressedDiffContextLength);
AddLabeledValue(leftLabel, highlightedLeftValueWriter.ToStructuredText());
AddLabeledValue(rightLabel, highlightedRightValueWriter.ToStructuredText());
}
}
return(this);
}
internal static void Check(string a, string b)
{
TestLog.WriteLine("A: " + a);
TestLog.WriteLine("B: " + b);
// Standard diff.
DiffSet diffSet = DiffSet.GetDiffSet(a, b);
TestLog.Write("Diff: ");
TestLog.WriteLine(diffSet);
VerifyDiffSetIsValid(diffSet);
// Also check simplified form.
DiffSet simplifiedDiffSet = diffSet.Simplify();
TestLog.Write("Simplified Diff: ");
TestLog.WriteLine(simplifiedDiffSet);
VerifyDiffSetIsValid(simplifiedDiffSet);
Assert.LessThanOrEqualTo(simplifiedDiffSet.Diffs.Count, diffSet.Diffs.Count);
}