public void TestToCodePoint()
{
char[] pairs = { (char)(UChar.MinHighSurrogate + 0),
(char)(UChar.MinLowSurrogate + 0),
(char)(UChar.MinHighSurrogate + 1),
(char)(UChar.MinLowSurrogate + 1),
(char)(UChar.MinHighSurrogate + 2),
(char)(UChar.MinLowSurrogate + 2),
(char)(UChar.MaxHighSurrogate - 2),
(char)(UChar.MaxLowSurrogate - 2),
(char)(UChar.MaxHighSurrogate - 1),
(char)(UChar.MaxLowSurrogate - 1),
(char)(UChar.MaxHighSurrogate - 0),
(char)(UChar.MaxLowSurrogate - 0), };
for (int i = 0; i < pairs.Length; i += 2)
{
int cp = UChar.ToCodePoint(pairs[i], pairs[i + 1]);
if (pairs[i] != UTF16.GetLeadSurrogate(cp) ||
pairs[i + 1] != UTF16.GetTrailSurrogate(cp))
{
Errln((pairs[i]).ToHexString() + ", " + pairs[i + 1]);
break;
}
}
}
public void TestToChars()
{
char[] chars = new char[3];
int cp = UChar.ToCodePoint(UChar.MinHighSurrogate,
UChar.MinLowSurrogate);
UChar.ToChars(cp, chars, 1);
if (chars[1] != UChar.MinHighSurrogate ||
chars[2] != UChar.MinLowSurrogate)
{
Errln("fail");
}
chars = UChar.ToChars(cp);
if (chars[0] != UChar.MinHighSurrogate ||
chars[1] != UChar.MinLowSurrogate)
{
Errln("fail");
}
}
public void TestCodePointAtBefore()
{
String s = "" + UChar.MinHighSurrogate + // isolated high
UChar.MinHighSurrogate + // pair
UChar.MinLowSurrogate + UChar.MinLowSurrogate; // isolated
// low
char[] c = s.ToCharArray();
int[] avalues =
{
UChar.MinHighSurrogate,
UChar.ToCodePoint(UChar.MinHighSurrogate,
UChar.MinLowSurrogate),
UChar.MinLowSurrogate, UChar.MinLowSurrogate
};
int[] bvalues =
{
UChar.MinHighSurrogate,
UChar.MinHighSurrogate,
UChar.ToCodePoint(UChar.MinHighSurrogate,
UChar.MinLowSurrogate),
UChar.MinLowSurrogate,
};
StringBuffer b = new StringBuffer(s);
for (int i = 0; i < avalues.Length; ++i)
{
if (UChar.CodePointAt(s, i) != avalues[i])
{
Errln("string at: " + i);
}
if (UChar.CodePointAt(c, i) != avalues[i])
{
Errln("chars at: " + i);
}
if (UChar.CodePointAt(b, i) != avalues[i])
{
Errln("stringbuffer at: " + i);
}
if (UChar.CodePointBefore(s, i + 1) != bvalues[i])
{
Errln("string before: " + i);
}
if (UChar.CodePointBefore(c, i + 1) != bvalues[i])
{
Errln("chars before: " + i);
}
if (UChar.CodePointBefore(b, i + 1) != bvalues[i])
{
Errln("stringbuffer before: " + i);
}
}
//cover codePointAtBefore with limit
Logln("Testing codePointAtBefore with limit ...");
for (int i = 0; i < avalues.Length; ++i)
{
if (UChar.CodePointAt(c, i, 4) != avalues[i])
{
Errln("chars at: " + i);
}
if (UChar.CodePointBefore(c, i + 1, 0) != bvalues[i])
{
Errln("chars before: " + i);
}
}
}
