Assert.assertTrue(json.has(GraphSONTokens._ID));
Assert.assertEquals(1, json.optInt(GraphSONTokens._ID));
Assert.assertTrue(json.has("keyString"));
Assert.assertEquals("string", json.optString("keyString"));
Assert.assertTrue(json.has("keyLong"));
Assert.assertEquals(1L, json.optLong("keyLong"));
Assert.assertTrue(json.has("keyInt"));
Assert.assertEquals(2, json.optInt("keyInt"));
Assert.assertTrue(json.has("keyFloat"));
Assert.assertEquals(3.3f, (float) json.optDouble("keyFloat"), 0);
Assert.assertTrue(json.has("keyExponentialDouble"));