Add transmission-integration path and protocol (#104334)

This updates the config_flow migration from v1.1 to v1.2
including migration tests

tests/components/transmission/test_init.py

@@ -11,12 +11,17 @@ from transmission_rpc.error import (
 
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
 from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
-from homeassistant.components.transmission.const import DOMAIN
+from homeassistant.components.transmission.const import (
+    DEFAULT_PATH,
+    DEFAULT_SSL,
+    DOMAIN,
+)
 from homeassistant.config_entries import ConfigEntryState
+from homeassistant.const import CONF_PATH, CONF_SSL
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import entity_registry as er
 
-from . import MOCK_CONFIG_DATA, OLD_MOCK_CONFIG_DATA
+from . import MOCK_CONFIG_DATA, MOCK_CONFIG_DATA_VERSION_1_1, OLD_MOCK_CONFIG_DATA
 
 from tests.common import MockConfigEntry
 
@@ -39,6 +44,27 @@ async def test_successful_config_entry(hass: HomeAssistant) -> None:
     assert entry.state == ConfigEntryState.LOADED
 
 
+async def test_config_flow_entry_migrate_1_1_to_1_2(hass: HomeAssistant) -> None:
+    """Test that config flow entry is migrated correctly from v1.1 to v1.2."""
+    entry = MockConfigEntry(
+        domain=DOMAIN,
+        data=MOCK_CONFIG_DATA_VERSION_1_1,
+        version=1,
+        minor_version=1,
+    )
+    entry.add_to_hass(hass)
+
+    await hass.config_entries.async_setup(entry.entry_id)
+    await hass.async_block_till_done()
+
+    # Test that config entry is at the current version.
+    assert entry.version == 1
+    assert entry.minor_version == 2
+
+    assert entry.data[CONF_SSL] == DEFAULT_SSL
+    assert entry.data[CONF_PATH] == DEFAULT_PATH
+
+
 async def test_setup_failed_connection_error(
     hass: HomeAssistant, mock_api: MagicMock
 ) -> None: