assertEquals("http://scratch.org", obj.str("uri"));
assertTrue(obj.has("modified"));
assertTrue(obj.object("modified").has("timestamp"));
assertTrue(obj.object("modified").has("pretty"));
obj = arr.object(1);
assertEquals("bar", obj.str("name"));
assertFalse(obj.bool("default"));
assertEquals("http://bar.org", obj.str("uri"));
assertTrue(obj.has("modified"));
assertTrue(obj.object("modified").has("timestamp"));