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);
}
}
}
