assertFalse(iri2.equals(iri3)); // false
assertFalse(iri3.equals(iri1)); // false
assertFalse(iri3.equals(iri2)); // false
assertTrue(iri1.normalize().equals(iri2.normalize()));
assertTrue(iri1.normalize().equals(iri3.normalize()));
assertTrue(iri2.normalize().equals(iri1.normalize()));
assertTrue(iri2.normalize().equals(iri3.normalize()));
assertTrue(iri3.normalize().equals(iri1.normalize()));
assertTrue(iri3.normalize().equals(iri2.normalize()));