Add Home Assistant integration scaffold

tests/test_binary_sensor.py

@@ -0,0 +1,69 @@
+"""Tests de l'unique binary sensor Arkteos."""
+
+from __future__ import annotations
+
+from unittest.mock import Mock
+
+from custom_components.arkteos.binary_sensor import ArkteosConnectionBinarySensor
+from custom_components.arkteos.const import DOMAIN
+
+
+class FakeClient:
+    def __init__(self, available: bool = False) -> None:
+        self.available = available
+        self.callbacks: list[object] = []
+
+    def add_availability_callback(self, callback) -> None:
+        self.callbacks.append(callback)
+
+    def remove_availability_callback(self, callback) -> None:
+        self.callbacks.remove(callback)
+
+
+def test_binary_sensor_is_created() -> None:
+    assert ArkteosConnectionBinarySensor(FakeClient()) is not None
+
+
+def test_unique_id_is_stable() -> None:
+    assert ArkteosConnectionBinarySensor(FakeClient()).unique_id == "arkteos_zuran4_connection"
+
+
+def test_device_info_is_correct() -> None:
+    info = ArkteosConnectionBinarySensor(FakeClient()).device_info
+    assert info["identifiers"] == {(DOMAIN, "arkteos_zuran4")}
+    assert info["manufacturer"] == "Arkteos"
+    assert info["model"] == "Zuran 4"
+
+
+def test_is_on_when_client_is_available() -> None:
+    assert ArkteosConnectionBinarySensor(FakeClient(True)).is_on
+
+
+def test_is_off_when_client_is_unavailable() -> None:
+    assert not ArkteosConnectionBinarySensor(FakeClient(False)).is_on
+
+
+def test_availability_callback_writes_state() -> None:
+    client = FakeClient()
+    entity = ArkteosConnectionBinarySensor(client)
+    entity.async_write_ha_state = Mock()
+    entity._handle_availability(True)
+    entity.async_write_ha_state.assert_called_once()
+
+
+def test_callback_is_removed_before_entity_removal() -> None:
+    client = FakeClient()
+    entity = ArkteosConnectionBinarySensor(client)
+    client.add_availability_callback(entity._handle_availability)
+    client.remove_availability_callback(entity._handle_availability)
+    assert client.callbacks == []
+
+
+def test_no_polling_method_is_declared() -> None:
+    entity = ArkteosConnectionBinarySensor(FakeClient())
+    assert not hasattr(entity, "async_update")
+
+
+def test_binary_sensor_is_read_only() -> None:
+    source = ArkteosConnectionBinarySensor.__module__
+    assert source == "custom_components.arkteos.binary_sensor"