Mobile app to use device tracker config entry (#24238)

* Mobile app to use device tracker config entry

* Lint

* Re-use device_info

* Lint

tests/components/mobile_app/conftest.py

@@ -0,0 +1,60 @@
+"""Tests for mobile_app component."""
+# pylint: disable=redefined-outer-name,unused-import
+import pytest
+
+from tests.common import mock_device_registry
+
+from homeassistant.setup import async_setup_component
+
+from homeassistant.components.mobile_app.const import DOMAIN
+
+from .const import REGISTER, REGISTER_CLEARTEXT
+
+
+@pytest.fixture
+def registry(hass):
+    """Return a configured device registry."""
+    return mock_device_registry(hass)
+
+
+@pytest.fixture
+async def create_registrations(authed_api_client):
+    """Return two new registrations."""
+    enc_reg = await authed_api_client.post(
+        '/api/mobile_app/registrations', json=REGISTER
+    )
+
+    assert enc_reg.status == 201
+    enc_reg_json = await enc_reg.json()
+
+    clear_reg = await authed_api_client.post(
+        '/api/mobile_app/registrations', json=REGISTER_CLEARTEXT
+    )
+
+    assert clear_reg.status == 201
+    clear_reg_json = await clear_reg.json()
+
+    return (enc_reg_json, clear_reg_json)
+
+
+@pytest.fixture
+async def webhook_client(hass, aiohttp_client):
+    """mobile_app mock client."""
+    await async_setup_component(hass, DOMAIN, {DOMAIN: {}})
+    await hass.async_block_till_done()
+    return await aiohttp_client(hass.http.app)
+
+
+@pytest.fixture
+async def authed_api_client(hass, hass_client):
+    """Provide an authenticated client for mobile_app to use."""
+    await async_setup_component(hass, DOMAIN, {DOMAIN: {}})
+    await hass.async_block_till_done()
+    return await hass_client()
+
+
+@pytest.fixture(autouse=True)
+async def setup_ws(hass):
+    """Configure the websocket_api component."""
+    assert await async_setup_component(hass, 'websocket_api', {})
+    await hass.async_block_till_done()