text: """The sensor tests for the griddy platform."""
  import json
  import os
  
  from asynctest import patch
  from griddypower.async_api import GriddyPriceData
  
  from homeassistant.components.griddy import CONF_LOADZONE, DOMAIN
  from homeassistant.setup import async_setup_component
  
  from tests.common import load_fixture
  
  
  async def _load_json_fixture(hass, path):
      fixture = await hass.async_add_executor_job(
          load_fixture, os.path.join("griddy", path)
      )
      return json.loads(fixture)
  
  
  def _mock_get_config():
      """Return a default griddy config."""
      return {DOMAIN: {CONF_LOADZONE: "LZ_HOUSTON"}}
  
  
  async def test_houston_loadzone(hass):
      """Test creation of the houston load zone."""
  
      getnow_json = await _load_json_fixture(hass, "getnow.json")
      griddy_price_data = GriddyPriceData(getnow_json)
      with patch(
          "homeassistant.components.griddy.AsyncGriddy.async_getnow",
          return_value=griddy_price_data,
      ):
          assert await async_setup_component(hass, DOMAIN, _mock_get_config())
          await hass.async_block_till_done()
  
      sensor_lz_houston_price_now = hass.states.get("sensor.lz_houston_price_now")
      assert sensor_lz_houston_price_now.state == "1.269"
  