public void TestIsHighSurrogate() { if (UChar .IsHighSurrogate((char)(UChar.MinHighSurrogate - 1))) { Errln("0xd7ff"); } if (!UChar.IsHighSurrogate(UChar.MinHighSurrogate)) { Errln("0xd800"); } if (!UChar.IsHighSurrogate(UChar.MaxHighSurrogate)) { Errln("0xdbff"); } if (UChar .IsHighSurrogate((char)(UChar.MaxHighSurrogate + 1))) { Errln("0xdc00"); } }