Add state reproduction to remotes (#30990)

tests/components/remote/test_reproduce_state.py

@@ -0,0 +1,52 @@
+"""Test reproduce state for Remote."""
+from homeassistant.core import State
+
+from tests.common import async_mock_service
+
+
+async def test_reproducing_states(hass, caplog):
+    """Test reproducing Remote states."""
+    hass.states.async_set("remote.entity_off", "off", {})
+    hass.states.async_set("remote.entity_on", "on", {})
+
+    turn_on_calls = async_mock_service(hass, "remote", "turn_on")
+    turn_off_calls = async_mock_service(hass, "remote", "turn_off")
+
+    # These calls should do nothing as entities already in desired state
+    await hass.helpers.state.async_reproduce_state(
+        [State("remote.entity_off", "off"), State("remote.entity_on", "on")],
+        blocking=True,
+    )
+
+    assert len(turn_on_calls) == 0
+    assert len(turn_off_calls) == 0
+
+    # Test invalid state is handled
+    await hass.helpers.state.async_reproduce_state(
+        [State("remote.entity_off", "not_supported")], blocking=True
+    )
+
+    assert "not_supported" in caplog.text
+    assert len(turn_on_calls) == 0
+    assert len(turn_off_calls) == 0
+
+    # Make sure correct services are called
+    await hass.helpers.state.async_reproduce_state(
+        [
+            State("remote.entity_on", "off"),
+            State("remote.entity_off", "on", {}),
+            # Should not raise
+            State("remote.non_existing", "on"),
+        ],
+        blocking=True,
+    )
+
+    assert len(turn_on_calls) == 1
+    assert turn_on_calls[0].domain == "remote"
+    assert turn_on_calls[0].data == {
+        "entity_id": "remote.entity_off",
+    }
+
+    assert len(turn_off_calls) == 1
+    assert turn_off_calls[0].domain == "remote"
+    assert turn_off_calls[0].data == {"entity_id": "remote.entity_on"}