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| import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.junit.Test;
public class AppTest {
private static List<String> getGroups(Matcher m, int groups) {
List<String> result = new ArrayList<String>();
while (m.find()) {
for (int i = 0; i <= groups; i++) {
result.add(m.group(i));
}
}
return result;
}
@Test
public void testMain() {
assertTrue("".matches(""));
assertTrue("".matches("^$"));
assertTrue("abc".matches("abc"));
assertTrue("abc".matches("^abc$"));
assertTrue("abc".matches("\\babc"));
assertTrue("abc".matches("^\\babc$"));
assertFalse("abc".matches("^a\\bbc$"));
assertTrue("abc-112=112-abc".matches("^(\\w+)-(\\d+)=\\2-\\1$"));
assertTrue("He2LlO".matches("(?i)he\\dllo"));
assertFalse("He2LlO".matches("he\\dllo"));
assertTrue("abcabcabc".matches("^(abc)+$"));
assertEquals("2211-abc+=1145-bba", "abc2211+=bba1145".replaceAll("([a-z]+)(\\d+)", "$2-$1"));
assertEquals("2211-abc+=bba1145", "abc2211+=bba1145".replaceFirst("([a-z]+)(\\d+)", "$2-$1"));
assertEquals("abc2211-=bba1145", "abc2211+=bba1145".replace("+=", "-="));
assertArrayEquals(new String[] { "abcab", "wjio", "ksldm", "xf", "w", "000wefj" },
"abcabc1wjion2ksldmf3xfe9wf0000wefj".split("[a-z]\\d"));
assertArrayEquals(new String[] { "abc\nab", "\nwjio", " ksld m", "x\nf", "w", "0\n00wefj" },
"abc\nabc1\nwjion2 ksld mf3x\nfe9wf00\n00wefj".split("[a-z]\\d"));
Pattern p = Pattern.compile("(\\w+?)-(\\d+)");
Matcher m = p.matcher("123-123444-444gg-212=====bbbbb111-bb1111-bb-22");
assertArrayEquals(
new String[] { "123-123444", "123", "123444", "444gg-212", "444gg", "212", "bb-22", "bb", "22" },
getGroups(m, 2).toArray());
Pattern q = Pattern.compile("(\\w+?)-(\\d+?)");
Matcher n = q.matcher("123-123444-444gg-212=====bbbbb111-bb1111-bb-22");
assertArrayEquals(
new String[] { "123-1", "123", "1", "23444-4", "23444", "4", "44gg-2", "44gg", "2", "bb-2", "bb", "2" },
getGroups(n, 2).toArray());
Pattern r = Pattern.compile("\\d-\\d");
assertArrayEquals(new String[] { "2-3", "5-2", "1-3" },
getGroups(r.matcher("ab 2-3\n2343\r2 \t55-22\n\r3331-3\r\n-33"), 0).toArray());
}
}
|