def test_node_json_method(self):
		node = NodeSeeder.seed_ricefield_node(n_readings = 3)
		node_json = node.json()
		JSONHelper.test_model_json_method(Node, node_json)
	def test_sensor_json_method(self):
		sensor = NodeSeeder.seed_ricefield_node(n_readings = 3).sensors[0]
		sensor_json = sensor.json()
		JSONHelper.test_model_json_method(Sensor, sensor_json)
	def test_site_json_method(self):
		site = SiteSeeder.seed_ricefield_site()
		site_json = site.json()
		JSONHelper.test_model_json_method(Site, site_json)