public void NfdAndFixOffsets_WithStackedDiacriticsInMultipleRuns_FixesOffsetsCorrectly()
{
TsString input = CreateStackedDiacriticsInput(singleRun: false);
int[] origOffsets = { 21, 22, 23, 24, 25 }; // Offsets 26 through end of string are unchanged by this test
int[] expectedOffsets = { 21, 24, 22, 23, 25 };
ITsString nfd;
int[] actualOffsets;
using (ArrayPtr nativeOffsets = ConvertToNativeArray(origOffsets))
{
input.NfdAndFixOffsets(out nfd, nativeOffsets, origOffsets.Length);
actualOffsets = ConvertToManagedArray(nativeOffsets, origOffsets.Length);
}
CollectionAssert.AreEqual(expectedOffsets, actualOffsets);
// All the new offsets should still point to the same characters that they did before
for (int i = 0; i < origOffsets.Length; i++)
{
int oldOffset = origOffsets[i];
int newOffset = actualOffsets[i];
char oldCh = input.Text[oldOffset];
char newCh = nfd.Text[newOffset];
Assert.That(newCh, Is.EqualTo(oldCh),
String.Format("Old char '{0}' (U+{1:X4}) at {2} should match new char '{3}' (U+{4:X4}) at {5}, but didn't match.",
oldCh, (int)oldCh, oldOffset, newCh, newOffset, (int)newCh));
}
}
public void NfdAndFixOffsets_OffsetsPointingToSecondHalfOfSurrogatePair_AreFixedUpToPointToFirstHalf(
string input, string expectedNfd, int[] origOffsets, int[] expectedOffsets)
{
var tsInput = new TsString(input, EnglishWS);
ITsString nfd;
int[] actualOffsets;
using (ArrayPtr nativeOffsets = ConvertToNativeArray(origOffsets))
{
tsInput.NfdAndFixOffsets(out nfd, nativeOffsets, origOffsets.Length);
actualOffsets = ConvertToManagedArray(nativeOffsets, origOffsets.Length);
}
CollectionAssert.AreEqual(expectedOffsets, actualOffsets);
Assert.That(nfd.Text, Is.EqualTo(expectedNfd));
}