Catch access denied errors in webdav and display proper message (#147093)

tests/components/webdav/test_config_flow.py

@@ -2,7 +2,11 @@
 
 from unittest.mock import AsyncMock
 
-from aiowebdav2.exceptions import MethodNotSupportedError, UnauthorizedError
+from aiowebdav2.exceptions import (
+    AccessDeniedError,
+    MethodNotSupportedError,
+    UnauthorizedError,
+)
 import pytest
 
 from homeassistant import config_entries
@@ -86,6 +90,7 @@ async def test_form_fail(hass: HomeAssistant, webdav_client: AsyncMock) -> None:
     ("exception", "expected_error"),
     [
         (UnauthorizedError("https://webdav.demo"), "invalid_auth"),
+        (AccessDeniedError("https://webdav.demo"), "access_denied"),
         (MethodNotSupportedError("check", "https://webdav.demo"), "invalid_method"),
         (Exception("Unexpected error"), "unknown"),
     ],

tests/components/webdav/test_init.py

@@ -2,7 +2,7 @@
 
 from unittest.mock import AsyncMock
 
-from aiowebdav2.exceptions import WebDavError
+from aiowebdav2.exceptions import AccessDeniedError, UnauthorizedError, WebDavError
 import pytest
 
 from homeassistant.components.webdav.const import CONF_BACKUP_PATH, DOMAIN
@@ -110,3 +110,47 @@ async def test_migrate_error(
         'Failed to migrate wrong encoded folder "/wrong%20path" to "/wrong path"'
         in caplog.text
     )
+
+
+@pytest.mark.parametrize(
+    ("error", "expected_message", "expected_state"),
+    [
+        (
+            UnauthorizedError("Unauthorized"),
+            "Invalid username or password",
+            ConfigEntryState.SETUP_ERROR,
+        ),
+        (
+            AccessDeniedError("/access_denied"),
+            "Access denied to /access_denied",
+            ConfigEntryState.SETUP_ERROR,
+        ),
+    ],
+    ids=["UnauthorizedError", "AccessDeniedError"],
+)
+async def test_error_during_setup(
+    hass: HomeAssistant,
+    webdav_client: AsyncMock,
+    caplog: pytest.LogCaptureFixture,
+    error: Exception,
+    expected_message: str,
+    expected_state: ConfigEntryState,
+) -> None:
+    """Test handling of various errors during setup."""
+    webdav_client.check.side_effect = error
+
+    config_entry = MockConfigEntry(
+        title="user@webdav.demo",
+        domain=DOMAIN,
+        data={
+            CONF_URL: "https://webdav.demo",
+            CONF_USERNAME: "user",
+            CONF_PASSWORD: "supersecretpassword",
+            CONF_BACKUP_PATH: "/backups",
+        },
+        entry_id="01JKXV07ASC62D620DGYNG2R8H",
+    )
+    await setup_integration(hass, config_entry)
+
+    assert expected_message in caplog.text
+    assert config_entry.state is expected_state