Migrate tests to pytest (#23544)

* Migrate tests to pytest

* Fixup

* Use loop fixture in test_check_config

* Lint

tests/util/test_distance.py

@@ -1,79 +1,68 @@
 """Test homeassistant distance utility functions."""
 
-import unittest
+import pytest
+
 import homeassistant.util.distance as distance_util
 from homeassistant.const import (LENGTH_KILOMETERS, LENGTH_METERS, LENGTH_FEET,
                                  LENGTH_MILES)
-import pytest
-
 INVALID_SYMBOL = 'bob'
 VALID_SYMBOL = LENGTH_KILOMETERS
 
 
-class TestDistanceUtil(unittest.TestCase):
-    """Test the distance utility functions."""
+def test_convert_same_unit():
+    """Test conversion from any unit to same unit."""
+    assert distance_util.convert(5, LENGTH_KILOMETERS, LENGTH_KILOMETERS) == 5
+    assert distance_util.convert(2, LENGTH_METERS, LENGTH_METERS) == 2
+    assert distance_util.convert(10, LENGTH_MILES, LENGTH_MILES) == 10
+    assert distance_util.convert(9, LENGTH_FEET, LENGTH_FEET) == 9
 
-    def test_convert_same_unit(self):
-        """Test conversion from any unit to same unit."""
-        assert 5 == distance_util.convert(5, LENGTH_KILOMETERS,
-                                          LENGTH_KILOMETERS)
-        assert 2 == distance_util.convert(2, LENGTH_METERS,
-                                          LENGTH_METERS)
-        assert 10 == distance_util.convert(10, LENGTH_MILES, LENGTH_MILES)
-        assert 9 == distance_util.convert(9, LENGTH_FEET, LENGTH_FEET)
 
-    def test_convert_invalid_unit(self):
-        """Test exception is thrown for invalid units."""
-        with pytest.raises(ValueError):
-            distance_util.convert(5, INVALID_SYMBOL,
-                                  VALID_SYMBOL)
+def test_convert_invalid_unit():
+    """Test exception is thrown for invalid units."""
+    with pytest.raises(ValueError):
+        distance_util.convert(5, INVALID_SYMBOL, VALID_SYMBOL)
 
-        with pytest.raises(ValueError):
-            distance_util.convert(5, VALID_SYMBOL,
-                                  INVALID_SYMBOL)
+    with pytest.raises(ValueError):
+        distance_util.convert(5, VALID_SYMBOL, INVALID_SYMBOL)
 
-    def test_convert_nonnumeric_value(self):
-        """Test exception is thrown for nonnumeric type."""
-        with pytest.raises(TypeError):
-            distance_util.convert('a', LENGTH_KILOMETERS, LENGTH_METERS)
 
-    def test_convert_from_miles(self):
-        """Test conversion from miles to other units."""
-        miles = 5
-        assert distance_util.convert(
-            miles, LENGTH_MILES, LENGTH_KILOMETERS
-        ) == 8.04672
-        assert distance_util.convert(miles, LENGTH_MILES, LENGTH_METERS) == \
-            8046.72
-        assert distance_util.convert(miles, LENGTH_MILES, LENGTH_FEET) == \
-            26400.0008448
+def test_convert_nonnumeric_value():
+    """Test exception is thrown for nonnumeric type."""
+    with pytest.raises(TypeError):
+        distance_util.convert('a', LENGTH_KILOMETERS, LENGTH_METERS)
 
-    def test_convert_from_feet(self):
-        """Test conversion from feet to other units."""
-        feet = 5000
-        assert distance_util.convert(feet, LENGTH_FEET, LENGTH_KILOMETERS) == \
-            1.524
-        assert distance_util.convert(feet, LENGTH_FEET, LENGTH_METERS) == \
-            1524
-        assert distance_util.convert(feet, LENGTH_FEET, LENGTH_MILES) == \
-            0.9469694040000001
 
-    def test_convert_from_kilometers(self):
-        """Test conversion from kilometers to other units."""
-        km = 5
-        assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_FEET) == \
-            16404.2
-        assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_METERS) == \
-            5000
-        assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_MILES) == \
-            3.106855
+def test_convert_from_miles():
+    """Test conversion from miles to other units."""
+    miles = 5
+    assert distance_util.convert(miles, LENGTH_MILES, LENGTH_KILOMETERS) == \
+        8.04672
+    assert distance_util.convert(miles, LENGTH_MILES, LENGTH_METERS) == 8046.72
+    assert distance_util.convert(miles, LENGTH_MILES, LENGTH_FEET) == \
+        26400.0008448
 
-    def test_convert_from_meters(self):
-        """Test conversion from meters to other units."""
-        m = 5000
-        assert distance_util.convert(m, LENGTH_METERS, LENGTH_FEET) == \
-            16404.2
-        assert distance_util.convert(m, LENGTH_METERS, LENGTH_KILOMETERS) == \
-            5
-        assert distance_util.convert(m, LENGTH_METERS, LENGTH_MILES) == \
-            3.106855
+
+def test_convert_from_feet():
+    """Test conversion from feet to other units."""
+    feet = 5000
+    assert distance_util.convert(feet, LENGTH_FEET, LENGTH_KILOMETERS) == 1.524
+    assert distance_util.convert(feet, LENGTH_FEET, LENGTH_METERS) == 1524
+    assert distance_util.convert(feet, LENGTH_FEET, LENGTH_MILES) == \
+        0.9469694040000001
+
+
+def test_convert_from_kilometers():
+    """Test conversion from kilometers to other units."""
+    km = 5
+    assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_FEET) == 16404.2
+    assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_METERS) == 5000
+    assert distance_util.convert(km, LENGTH_KILOMETERS, LENGTH_MILES) == \
+        3.106855
+
+
+def test_convert_from_meters():
+    """Test conversion from meters to other units."""
+    m = 5000
+    assert distance_util.convert(m, LENGTH_METERS, LENGTH_FEET) == 16404.2
+    assert distance_util.convert(m, LENGTH_METERS, LENGTH_KILOMETERS) == 5
+    assert distance_util.convert(m, LENGTH_METERS, LENGTH_MILES) == 3.106855