public void test_hasTransparentBounds() {
String testPattern = "abb";
String testString = "ab\nb";
Pattern pat = Pattern.compile(testPattern);
Matcher mat = pat.matcher(testString);
assertFalse("Matcher uses opaque bounds by default", mat.hasTransparentBounds());
Matcher mu = mat.useTransparentBounds(true);
assertTrue("Incorrect value of anchoring bounds", mu.hasTransparentBounds());
mu = mat.useTransparentBounds(false);
assertFalse("Incorrect value of anchoring bounds", mu.hasTransparentBounds());
}