diff --git a/tests/components/openhardwaremonitor/test_sensor.py b/tests/components/openhardwaremonitor/test_sensor.py
index 3cf5ba84a25..192bdf27119 100644
--- a/tests/components/openhardwaremonitor/test_sensor.py
+++ b/tests/components/openhardwaremonitor/test_sensor.py
@@ -1,55 +1,36 @@
 """The tests for the Open Hardware Monitor platform."""
-import unittest
+from homeassistant.setup import async_setup_component
 
-import requests_mock
-
-from homeassistant.setup import setup_component
-
-from tests.common import get_test_home_assistant, load_fixture
+from tests.common import load_fixture
 
 
-class TestOpenHardwareMonitorSetup(unittest.TestCase):
-    """Test the Open Hardware Monitor platform."""
-
-    def setUp(self):
-        """Initialize values for this testcase class."""
-        self.hass = get_test_home_assistant()
-        self.config = {
-            "sensor": {
-                "platform": "openhardwaremonitor",
-                "host": "localhost",
-                "port": 8085,
-            }
+async def test_setup(hass, requests_mock):
+    """Test for successfully setting up the platform."""
+    config = {
+        "sensor": {
+            "platform": "openhardwaremonitor",
+            "host": "localhost",
+            "port": 8085,
         }
-        self.addCleanup(self.tear_down_cleanup)
+    }
 
-    def tear_down_cleanup(self):
-        """Stop everything that was started."""
-        self.hass.stop()
+    requests_mock.get(
+        "http://localhost:8085/data.json",
+        text=load_fixture("openhardwaremonitor.json"),
+    )
 
-    @requests_mock.Mocker()
-    def test_setup(self, mock_req):
-        """Test for successfully setting up the platform."""
-        mock_req.get(
-            "http://localhost:8085/data.json",
-            text=load_fixture("openhardwaremonitor.json"),
-        )
+    await async_setup_component(hass, "sensor", config)
+    await hass.async_block_till_done()
 
-        assert setup_component(self.hass, "sensor", self.config)
-        self.hass.block_till_done()
-        entities = self.hass.states.async_entity_ids("sensor")
-        assert len(entities) == 38
+    entities = hass.states.async_entity_ids("sensor")
+    assert len(entities) == 38
 
-        state = self.hass.states.get(
-            "sensor.test_pc_intel_core_i7_7700_temperatures_cpu_core_1"
-        )
+    state = hass.states.get("sensor.test_pc_intel_core_i7_7700_temperatures_cpu_core_1")
 
-        assert state is not None
-        assert state.state == "31.0"
+    assert state is not None
+    assert state.state == "31.0"
 
-        state = self.hass.states.get(
-            "sensor.test_pc_intel_core_i7_7700_temperatures_cpu_core_2"
-        )
+    state = hass.states.get("sensor.test_pc_intel_core_i7_7700_temperatures_cpu_core_2")
 
-        assert state is not None
-        assert state.state == "30.0"
+    assert state is not None
+    assert state.state == "30.0"