Introduce new async-def coroutine syntax (#1657)

tests/unit_tests/test_cpp_helpers.py

@@ -6,25 +6,24 @@ from esphome import const
 from esphome.cpp_generator import MockObj
 
 
-def test_gpio_pin_expression__conf_is_none(monkeypatch):
-    target = ch.gpio_pin_expression(None)
-
-    actual = next(target)
+@pytest.mark.asyncio
+async def test_gpio_pin_expression__conf_is_none(monkeypatch):
+    actual = await ch.gpio_pin_expression(None)
 
     assert actual is None
 
 
-def test_gpio_pin_expression__new_pin(monkeypatch):
-    target = ch.gpio_pin_expression(
+@pytest.mark.asyncio
+async def test_gpio_pin_expression__new_pin(monkeypatch):
+    actual = await ch.gpio_pin_expression(
         {const.CONF_NUMBER: 42, const.CONF_MODE: "input", const.CONF_INVERTED: False}
     )
 
-    actual = next(target)
-
     assert isinstance(actual, MockObj)
 
 
-def test_register_component(monkeypatch):
+@pytest.mark.asyncio
+async def test_register_component(monkeypatch):
     var = Mock(base="foo.bar")
 
     app_mock = Mock(register_component=Mock(return_value=var))
@@ -36,9 +35,7 @@ def test_register_component(monkeypatch):
     add_mock = Mock()
     monkeypatch.setattr(ch, "add", add_mock)
 
-    target = ch.register_component(var, {})
-
-    actual = next(target)
+    actual = await ch.register_component(var, {})
 
     assert actual is var
     add_mock.assert_called_once()
@@ -46,18 +43,19 @@ def test_register_component(monkeypatch):
     assert core_mock.component_ids == []
 
 
-def test_register_component__no_component_id(monkeypatch):
+@pytest.mark.asyncio
+async def test_register_component__no_component_id(monkeypatch):
     var = Mock(base="foo.eek")
 
     core_mock = Mock(component_ids=["foo.bar"])
     monkeypatch.setattr(ch, "CORE", core_mock)
 
     with pytest.raises(ValueError, match="Component ID foo.eek was not declared to"):
-        target = ch.register_component(var, {})
-        next(target)
+        await ch.register_component(var, {})
 
 
-def test_register_component__with_setup_priority(monkeypatch):
+@pytest.mark.asyncio
+async def test_register_component__with_setup_priority(monkeypatch):
     var = Mock(base="foo.bar")
 
     app_mock = Mock(register_component=Mock(return_value=var))
@@ -69,7 +67,7 @@ def test_register_component__with_setup_priority(monkeypatch):
     add_mock = Mock()
     monkeypatch.setattr(ch, "add", add_mock)
 
-    target = ch.register_component(
+    actual = await ch.register_component(
         var,
         {
             const.CONF_SETUP_PRIORITY: "123",
@@ -77,8 +75,6 @@ def test_register_component__with_setup_priority(monkeypatch):
         },
     )
 
-    actual = next(target)
-
     assert actual is var
     add_mock.assert_called()
     assert add_mock.call_count == 3