Add config flow for Tuya (#35422)

* Added Tuya config flow

* Added test config_flow

* Fixed log error message

* Add test requirements

* Lint Fix

* Fix Black formatting

* Added pylint directive

Added pylint:disable=unused-import in config_flow.py

* Implementation requested changes

* Update CodeOwners

* Removed device registry cleanup

* Force checks

* Force checks

* Fix implemetation

- Set config schema "deprecated"
- Removed async from update_callback

* Updating test

* Fix formatting

* Config Flow test fix

- mock out async_setup and async_setup_entry

* Fix formatting

tests/components/tuya/test_config_flow.py

@@ -0,0 +1,147 @@
+"""Tests for the Tuya config flow."""
+import pytest
+from tuyaha.tuyaapi import TuyaAPIException, TuyaNetException
+
+from homeassistant import config_entries, data_entry_flow, setup
+from homeassistant.components.tuya.const import CONF_COUNTRYCODE, DOMAIN
+from homeassistant.const import CONF_PASSWORD, CONF_PLATFORM, CONF_USERNAME
+
+from tests.async_mock import Mock, patch
+from tests.common import MockConfigEntry
+
+USERNAME = "myUsername"
+PASSWORD = "myPassword"
+COUNTRY_CODE = "1"
+TUYA_PLATFORM = "tuya"
+
+TUYA_USER_DATA = {
+    CONF_USERNAME: USERNAME,
+    CONF_PASSWORD: PASSWORD,
+    CONF_COUNTRYCODE: COUNTRY_CODE,
+    CONF_PLATFORM: TUYA_PLATFORM,
+}
+
+
+@pytest.fixture(name="tuya")
+def tuya_fixture() -> Mock:
+    """Patch libraries."""
+    with patch("homeassistant.components.tuya.config_flow.TuyaApi") as tuya:
+        yield tuya
+
+
+async def test_user(hass, tuya):
+    """Test user config."""
+    await setup.async_setup_component(hass, "persistent_notification", {})
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["step_id"] == "user"
+
+    with patch(
+        "homeassistant.components.tuya.async_setup", return_value=True
+    ) as mock_setup, patch(
+        "homeassistant.components.tuya.async_setup_entry", return_value=True
+    ) as mock_setup_entry:
+        result = await hass.config_entries.flow.async_configure(
+            result["flow_id"], user_input=TUYA_USER_DATA
+        )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+    assert result["title"] == USERNAME
+    assert result["data"][CONF_USERNAME] == USERNAME
+    assert result["data"][CONF_PASSWORD] == PASSWORD
+    assert result["data"][CONF_COUNTRYCODE] == COUNTRY_CODE
+    assert result["data"][CONF_PLATFORM] == TUYA_PLATFORM
+    assert not result["result"].unique_id
+
+    await hass.async_block_till_done()
+    assert len(mock_setup.mock_calls) == 1
+    assert len(mock_setup_entry.mock_calls) == 1
+
+
+async def test_import(hass, tuya):
+    """Test import step."""
+    await setup.async_setup_component(hass, "persistent_notification", {})
+    with patch(
+        "homeassistant.components.tuya.async_setup", return_value=True,
+    ) as mock_setup, patch(
+        "homeassistant.components.tuya.async_setup_entry", return_value=True,
+    ) as mock_setup_entry:
+        result = await hass.config_entries.flow.async_init(
+            DOMAIN,
+            context={"source": config_entries.SOURCE_IMPORT},
+            data=TUYA_USER_DATA,
+        )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+    assert result["title"] == USERNAME
+    assert result["data"][CONF_USERNAME] == USERNAME
+    assert result["data"][CONF_PASSWORD] == PASSWORD
+    assert result["data"][CONF_COUNTRYCODE] == COUNTRY_CODE
+    assert result["data"][CONF_PLATFORM] == TUYA_PLATFORM
+    assert not result["result"].unique_id
+
+    await hass.async_block_till_done()
+    assert len(mock_setup.mock_calls) == 1
+    assert len(mock_setup_entry.mock_calls) == 1
+
+
+async def test_abort_if_already_setup(hass, tuya):
+    """Test we abort if Tuya is already setup."""
+    MockConfigEntry(domain=DOMAIN, data=TUYA_USER_DATA).add_to_hass(hass)
+
+    # Should fail, config exist (import)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "single_instance_allowed"
+
+    # Should fail, config exist (flow)
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_IMPORT}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "single_instance_allowed"
+
+
+async def test_abort_on_invalid_credentials(hass, tuya):
+    """Test when we have invalid credentials."""
+    tuya().init.side_effect = TuyaAPIException("Boom")
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_FORM
+    assert result["errors"] == {"base": "auth_failed"}
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_IMPORT}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "auth_failed"
+
+
+async def test_abort_on_connection_error(hass, tuya):
+    """Test when we have a network error."""
+    tuya().init.side_effect = TuyaNetException("Boom")
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "conn_error"
+
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_IMPORT}, data=TUYA_USER_DATA
+    )
+
+    assert result["type"] == data_entry_flow.RESULT_TYPE_ABORT
+    assert result["reason"] == "conn_error"