Add config flow for threshold binary sensor (#68238)

Co-authored-by: Franck Nijhof <git@frenck.dev>

tests/components/threshold/test_init.py

@@ -0,0 +1,61 @@
+"""Test the Min/Max integration."""
+import pytest
+
+from homeassistant.components.threshold.const import DOMAIN
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers import entity_registry as er
+
+from tests.common import MockConfigEntry
+
+
+@pytest.mark.parametrize("platform", ("binary_sensor",))
+async def test_setup_and_remove_config_entry(
+    hass: HomeAssistant,
+    platform: str,
+) -> None:
+    """Test setting up and removing a config entry."""
+    hass.states.async_set("sensor.input", "-10")
+
+    input_sensor = "sensor.input"
+
+    registry = er.async_get(hass)
+    threshold_entity_id = f"{platform}.input_threshold"
+
+    # Setup the config entry
+    config_entry = MockConfigEntry(
+        data={},
+        domain=DOMAIN,
+        options={
+            "entity_id": input_sensor,
+            "hysteresis": 0.0,
+            "lower": -2.0,
+            "name": "Input threshold",
+            "upper": None,
+        },
+        title="Input threshold",
+    )
+    config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    # Check the entity is registered in the entity registry
+    assert registry.async_get(threshold_entity_id) is not None
+
+    # Check the platform is setup correctly
+    state = hass.states.get(threshold_entity_id)
+    assert state.state == "on"
+    assert state.attributes["entity_id"] == input_sensor
+    assert state.attributes["hysteresis"] == 0.0
+    assert state.attributes["lower"] == -2.0
+    assert state.attributes["position"] == "below"
+    assert state.attributes["sensor_value"] == -10.0
+    assert state.attributes["type"] == "lower"
+    assert state.attributes["upper"] is None
+
+    # Remove the config entry
+    assert await hass.config_entries.async_remove(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    # Check the state and entity registry entry are removed
+    assert hass.states.get(threshold_entity_id) is None
+    assert registry.async_get(threshold_entity_id) is None