public static DiffList BuildDiffList(FilesIndex source, FilesIndex target)
{
var diffList = new DiffList();
foreach (var targetInfo in target.Index)
{
if (source.Index.TryGetValue(targetInfo.Key, out var record) &&
targetInfo.Value.Equals(record) &&
!diffList.ReuseFiles.ContainsKey(targetInfo.Key))
{
diffList.ReuseFiles.Add(targetInfo.Key, targetInfo.Key);
}
else
{
string?alternativeName = source.GetFileNameByRecord(targetInfo.Value);
if (alternativeName != null && !diffList.ReuseFiles.ContainsKey(alternativeName))
{
diffList.ReuseFiles.Add(alternativeName, targetInfo.Key);
}
else
{
diffList.ChangedFiles.Add(targetInfo.Key);
}
}
}
foreach (var sourceInfo in source.Index)
{
if (!target.Index.ContainsKey(sourceInfo.Key) &&
!diffList.ReuseFiles.ContainsKey(sourceInfo.Key))
{
diffList.RemoveFiles.Add(sourceInfo.Key);
}
}
return(diffList);
}
public void FromDelta_InvalidInput_Throws()
{
var delta = "=x";
Assert.Throws<ArgumentException>(() =>
DiffList.FromDelta("", delta).ToList()
);
}
public void FromDelta_GeneratesExpectedDiffs()
{
var delta = diffs.ToDelta();
var result = DiffList.FromDelta(diffs.Text1(), delta);
Assert.Equal(diffs, result.ToList());
}
public void ToDelta_InputTooShort_Throws()
{
var delta = diffs.ToDelta();
var text1 = diffs.Text1().Substring(1);
DiffList.FromDelta(text1, delta).ToList();
}
public void ToDelta_InputTooLong_Throws()
{
var delta = diffs.ToDelta();
var text1 = diffs.Text1() + "x";
DiffList.FromDelta(text1, delta).ToList();
}
public void FromDelta_InputTooLong_Throws()
{
var delta = diffs.ToDelta();
var text1 = diffs.Text1() + "x";
Assert.Throws<ArgumentException>(() =>
DiffList.FromDelta(text1, delta).ToList()
);
}
public void ToDelta_InputTooShort_Throws()
{
var diffs = new List <Diff>
{
Diff.Equal("jump"),
Diff.Delete("s"),
Diff.Insert("ed"),
Diff.Equal(" over "),
Diff.Delete("the"),
Diff.Insert("a"),
Diff.Equal(" lazy"),
Diff.Insert("old dog")
};
var delta = diffs.ToDelta();
var text1 = diffs.Text1().Substring(1);
Assert.Throws <ArgumentException>(() => DiffList.FromDelta(text1, delta).ToList());
}
public void FromDelta_GeneratesExpectedDiffs()
{
var diffs = new List <Diff>
{
Diff.Equal("jump"),
Diff.Delete("s"),
Diff.Insert("ed"),
Diff.Equal(" over "),
Diff.Delete("the"),
Diff.Insert("a"),
Diff.Equal(" lazy"),
Diff.Insert("old dog")
};
var delta = diffs.ToDelta();
var result = DiffList.FromDelta(diffs.Text1(), delta);
CollectionAssert.AreEqual(diffs, result.ToList());
}
public void Delta_LargeString()
{
// 160 kb string.
var a = "abcdefghij";
for (var i = 0; i < 14; i++)
{
a += a;
}
var diffs2 = new List <Diff> {
Diff.Insert(a)
};
var delta = diffs2.ToDelta();
Assert.AreEqual("+" + a, delta);
// Convert delta string into a diff.
CollectionAssert.AreEqual(diffs2, DiffList.FromDelta("", delta).ToList(), "diff_fromDelta: 160kb string.");
}
public void Delta_FromUnchangedCharacters_Succeeds()
{
// Verify pool of unchanged characters.
var expected = new List <Diff>
{
Diff.Insert("A-Z a-z 0-9 - _ . ! ~ * ' ( ) ; / ? : @ & = + $ , # ")
};
var text2 = expected.Text2();
Assert.AreEqual("A-Z a-z 0-9 - _ . ! ~ * \' ( ) ; / ? : @ & = + $ , # ", text2);
var delta = expected.ToDelta();
Assert.AreEqual("+A-Z a-z 0-9 - _ . ! ~ * \' ( ) ; / ? : @ & = + $ , # ", delta);
// Convert delta string into a diff.
var actual = DiffList.FromDelta("", delta);
CollectionAssert.AreEqual(expected, actual.ToList(), "diff_fromDelta: Unchanged characters.");
}
public void Delta_SpecialCharacters_Works()
{
var zero = (char)0;
var one = (char)1;
var two = (char)2;
var diffs2 = new List <Diff>
{
Diff.Equal("\u0680 " + zero + " \t %"),
Diff.Delete("\u0681 " + one + " \n ^"),
Diff.Insert("\u0682 " + two + " \\ |")
};
var text1 = diffs2.Text1();
Assert.AreEqual("\u0680 " + zero + " \t %\u0681 " + one + " \n ^", text1);
var delta = diffs2.ToDelta();
// Lowercase, due to UrlEncode uses lower.
Assert.AreEqual("=7\t-7\t+%da%82 %02 %5c %7c", delta, "diff_toDelta: Unicode.");
CollectionAssert.AreEqual(diffs2, DiffList.FromDelta(text1, delta).ToList(), "diff_fromDelta: Unicode.");
}
public void FromDelta_EmptyTokensAreOk()
{
var delta = "\t\t";
var diffs = DiffList.FromDelta("", delta);
Assert.Empty(diffs);
}
public void FromDelta_InvalidUnicodeInput_Throws()
{
DiffList.FromDelta("", "+%c3%xy").ToList();
}
