Hi Folks,
While working on RandomStringGenerator I found when I'm doing .substring on
generated random string its failing intermittently with sequence of
surrogate pair.
same bug was raised in commons-lang
https://issues.apache.org/jira/browse/LANG-100
Is this possible bug with RandomStringGenerator ? or is this expected ?
@Test
public void testSubStringWithSurrogatePair() {
final int size = 5000;
final Charset charset = Charset.forName("UTF-8");
RandomStringGenerator generator = new
RandomStringGenerator.Builder().build();
String orig = generator.generate(size).substring(0,2500);
final byte[] bytes = orig.getBytes(charset);
final String copy = new String(bytes, charset);
for (int i=0; i < orig.length() && i < copy.length(); i++) {
final char o = orig.charAt(i);
final char c = copy.charAt(i);
assertEquals("differs at " + i + "(" + Integer.toHexString(new
Character(o).hashCode()) + "," +
Integer.toHexString(new Character(c).hashCode()) + ")", o,
c);
}
}
Regards,
Amey
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