Add reauth flow to the Traccar Server integration (#148236)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Josef Zweck <josef@zweck.dev>

tests/components/traccar_server/test_config_flow.py

@@ -4,7 +4,7 @@ from collections.abc import Generator
 from unittest.mock import AsyncMock
 
 import pytest
-from pytraccar import TraccarException
+from pytraccar import TraccarAuthenticationException, TraccarException
 
 from homeassistant import config_entries
 from homeassistant.components.traccar_server.const import (
@@ -175,3 +175,98 @@ async def test_abort_already_configured(
 
     assert result["type"] is FlowResultType.ABORT
     assert result["reason"] == "already_configured"
+
+
+async def test_reauth_flow(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_traccar_api_client: Generator[AsyncMock],
+) -> None:
+    """Test reauth flow."""
+    mock_config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={
+            "source": config_entries.SOURCE_REAUTH,
+            "entry_id": mock_config_entry.entry_id,
+        },
+        data=mock_config_entry.data,
+    )
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "reauth_confirm"
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {
+            CONF_USERNAME: "new-username",
+            CONF_PASSWORD: "new-password",
+        },
+    )
+    await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "reauth_successful"
+
+    # Verify the config entry was updated
+    assert mock_config_entry.data[CONF_USERNAME] == "new-username"
+    assert mock_config_entry.data[CONF_PASSWORD] == "new-password"
+
+
+@pytest.mark.parametrize(
+    ("side_effect", "error"),
+    [
+        (TraccarAuthenticationException, "invalid_auth"),
+        (TraccarException, "cannot_connect"),
+        (Exception, "unknown"),
+    ],
+)
+async def test_reauth_flow_errors(
+    hass: HomeAssistant,
+    mock_config_entry: MockConfigEntry,
+    mock_traccar_api_client: Generator[AsyncMock],
+    side_effect: Exception,
+    error: str,
+) -> None:
+    """Test reauth flow with errors."""
+    mock_config_entry.add_to_hass(hass)
+    assert await hass.config_entries.async_setup(mock_config_entry.entry_id)
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN,
+        context={
+            "source": config_entries.SOURCE_REAUTH,
+            "entry_id": mock_config_entry.entry_id,
+        },
+        data=mock_config_entry.data,
+    )
+
+    mock_traccar_api_client.get_server.side_effect = side_effect
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {
+            CONF_USERNAME: "new-username",
+            CONF_PASSWORD: "new-password",
+        },
+    )
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["errors"] == {"base": error}
+
+    # Test recovery after error
+    mock_traccar_api_client.get_server.side_effect = None
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {
+            CONF_USERNAME: "new-username",
+            CONF_PASSWORD: "new-password",
+        },
+    )
+    await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "reauth_successful"