@Test
public void testGroupInfoMapHasCorrectPosAndGroupIndex() {
final String PATT = "(foo)(?<X>a)(?<Y>b)(bar)(?<Z>c)(?<Z>d)"; // two groups named "Z"
Pattern p = Pattern.compile(PATT);
Map<String, List<GroupInfo>> map = p.groupInfo();
assertNotNull(map);
GroupInfo[] inf = (GroupInfo[]) map.get("X").toArray(new GroupInfo[0]);
assertEquals(1, inf.length);
assertEquals(PATT.indexOf("(?<X>"), inf[0].pos());
assertEquals(1, inf[0].groupIndex());
GroupInfo[] inf2 = (GroupInfo[]) map.get("Y").toArray(new GroupInfo[0]);
assertEquals(1, inf2.length);
assertEquals(PATT.indexOf("(?<Y>"), inf2[0].pos());
assertEquals(2, inf2[0].groupIndex());
// test both Z groups
GroupInfo[] inf3 = (GroupInfo[]) map.get("Z").toArray(new GroupInfo[0]);
assertEquals(2, inf3.length);
int posZ = PATT.indexOf("(?<Z>");
assertEquals(posZ, inf3[0].pos());
assertEquals(4, inf3[0].groupIndex());
assertEquals(PATT.indexOf("(?<Z>", posZ + 1), inf3[1].pos());
assertEquals(5, inf3[1].groupIndex());
}
@Test
public void testGroupInfoMapHasNamesAsKeys() {
final String PATT = "(foo)(?<X>a)(?<Y>b)(bar)(?<Z>c)(?<Z>d)"; // two groups named "Z"
Pattern p = Pattern.compile(PATT);
Map<String, List<GroupInfo>> map = p.groupInfo();
assertNotNull(map);
assertEquals(3, map.size());
assertTrue(map.containsKey("X"));
assertTrue(map.containsKey("Y"));
assertTrue(map.containsKey("Z"));
}
