Map<String,Value> restrictions = Collections.singletonMap(restrName, superuser.getValueFactory().createValue("/.*"));
assertTrue(pt.addEntry(testPrincipal, writePriv, false, restrictions));
assertEquals(2, pt.getAccessControlEntries().length);
// ... same again -> no modification.
assertFalse(pt.addEntry(testPrincipal, writePriv, false, restrictions));
assertEquals(2, pt.getAccessControlEntries().length);
// ... complementary entry -> must modify the acl.
assertTrue(pt.addEntry(testPrincipal, writePriv, true, restrictions));
assertEquals(2, pt.getAccessControlEntries().length);