public void EndsWithCodeUnit(string s, char c)
{
Utf8String u8s = new Utf8String(s);
byte codeUnit = (byte)c;
Assert.Equal(s.EndsWith(c.ToString()), u8s.EndsWith(codeUnit));
}
public void EndsWithUtf8String(string s, string pattern)
{
Utf8String u8s = new Utf8String(s);
Utf8String u8pattern = new Utf8String(pattern);
Assert.Equal(s.EndsWith(pattern), u8s.EndsWith(u8pattern));
}
public static void Searching_StandaloneSurrogate_Fails()
{
Utf8String utf8String = u8("\ud800\udfff");
Assert.False(utf8String.Contains('\ud800'));
Assert.False(utf8String.Contains('\udfff'));
Assert.Equal(-1, utf8String.IndexOf('\ud800'));
Assert.Equal(-1, utf8String.IndexOf('\udfff'));
Assert.False(utf8String.StartsWith('\ud800'));
Assert.False(utf8String.StartsWith('\udfff'));
Assert.False(utf8String.EndsWith('\ud800'));
Assert.False(utf8String.EndsWith('\udfff'));
}
public void EndsWithUtf8String(string s, string pattern)
{
Utf8String u8s = new Utf8String(s);
Utf8String u8pattern = new Utf8String(pattern);
Assert.Equal(s.EndsWith(pattern), u8s.EndsWith(u8pattern));
}
public static void StartsWith_And_EndsWith_CharRune_Ordinal(Utf8String utf8String, Rune searchValue, int expectedIndex)
{
// StartsWith
if (searchValue.IsBmp)
{
Assert.Equal(expectedIndex == 0, utf8String.StartsWith((char)searchValue.Value));
}
Assert.Equal(expectedIndex == 0, utf8String.StartsWith(searchValue));
// EndsWith
bool endsWithExpectedValue = (expectedIndex >= 0) && (expectedIndex + searchValue.Utf8SequenceLength) == utf8String.Length;
if (searchValue.IsBmp)
{
Assert.Equal(endsWithExpectedValue, utf8String.EndsWith((char)searchValue.Value));
}
Assert.Equal(endsWithExpectedValue, utf8String.EndsWith(searchValue));
}
public void EndsWithCodeUnit(string s, char c)
{
Utf8String u8s = new Utf8String(s);
Utf8CodeUnit codeUnit = (Utf8CodeUnit)(byte)c;
Assert.Equal(s.EndsWith(c.ToString()), u8s.EndsWith(codeUnit));
}
private static int GetNumOfBackSlashesAtEndOfString(Utf8String str)
{
var numOfBackSlashes = 0;
while (str.EndsWith(new Utf8String("\\")))
{
str = str.Substring(0, str.Length - 1);
numOfBackSlashes++;
}
return numOfBackSlashes;
}