public void testGroup(String text, String regexp, String[] output) {
// RE2
Pattern p = Pattern.compile(regexp, options);
Matcher matchString = p.matcher(utf8Slice(text));
assertEquals(true, matchString.find());
assertEquals(utf8Slice(output[0]), matchString.group());
for (int i = 0; i < output.length; i++) {
assertEquals(output[i] == null ? null : utf8Slice(output[i]), matchString.group(i));
}
assertEquals(output.length - 1, matchString.groupCount());
// JDK
java.util.regex.Pattern pj = java.util.regex.Pattern.compile(regexp);
java.util.regex.Matcher matchStringj = pj.matcher(text);
// java.util.regex.Matcher matchBytes =
// p.matcher(text.getBytes(Charsets.UTF_8));
assertEquals(true, matchStringj.find());
// assertEquals(true, matchBytes.find());
assertEquals(output[0], matchStringj.group());
// assertEquals(output[0], matchBytes.group());
for (int i = 0; i < output.length; i++) {
assertEquals(output[i], matchStringj.group(i));
// assertEquals(output[i], matchBytes.group(i));
}
}
public void testInvalidGroup(String text, String regexp, int group) {
Pattern p = Pattern.compile(regexp, options);
Matcher m = p.matcher(utf8Slice(text));
m.find();
m.group(group);
fail(); // supposed to have exception by now
}
public void testFind(String text, String regexp, int start, String output) {
// RE2
Pattern p = Pattern.compile(regexp, options);
Matcher matchString = p.matcher(utf8Slice(text));
assertTrue(matchString.find(start));
assertEquals(utf8Slice(output), matchString.group());
assertTrue(p.find(utf8Slice(text)));
// JDK
java.util.regex.Pattern pj = java.util.regex.Pattern.compile(regexp);
java.util.regex.Matcher matchStringj = pj.matcher(text);
assertTrue(matchStringj.find(start));
assertEquals(output, matchStringj.group());
}
