Add Backup integration (#66395)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

tests/components/backup/common.py

@@ -0,0 +1,29 @@
+"""Common helpers for the Backup integration tests."""
+from __future__ import annotations
+
+from pathlib import Path
+from unittest.mock import patch
+
+from homeassistant.components.backup import DOMAIN
+from homeassistant.components.backup.manager import Backup
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.typing import ConfigType
+from homeassistant.setup import async_setup_component
+
+TEST_BACKUP = Backup(
+    slug="abc123",
+    name="Test",
+    date="1970-01-01T00:00:00.000Z",
+    path=Path("abc123.tar"),
+    size=0.0,
+)
+
+
+async def setup_backup_integration(
+    hass: HomeAssistant,
+    with_hassio: bool = False,
+    configuration: ConfigType | None = None,
+) -> bool:
+    """Set up the Backup integration."""
+    with patch("homeassistant.components.backup.is_hassio", return_value=with_hassio):
+        return await async_setup_component(hass, DOMAIN, configuration or {})