Move weather.ipma into a component (#20706)

* initial version

* works

* lint

* move

* hound

* fix formatting

* update

* add extra features

* houmd

* docstring

* fix tests

* lint

* update requirements_all.txt

* new tests

* lint

* update CODEOWNERS

* MockDependency pyipma

* hound

* bump pyipma version

* add config_flow tests

* lint

* improve test coverage

* fix test

* address comments by @MartinHjelmare

* remove device_info

* hound

* stale comment

* Add deprecation warning

* address comments

* lint

tests/components/ipma/test_config_flow.py

@@ -0,0 +1,118 @@
+"""Tests for IPMA config flow."""
+from unittest.mock import Mock, patch
+
+from tests.common import mock_coro
+
+from homeassistant.const import CONF_LATITUDE, CONF_LONGITUDE
+from homeassistant.components.ipma import config_flow
+
+
+async def test_show_config_form():
+    """Test show configuration form."""
+    hass = Mock()
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    result = await flow._show_config_form()
+
+    assert result['type'] == 'form'
+    assert result['step_id'] == 'user'
+
+
+async def test_show_config_form_default_values():
+    """Test show configuration form."""
+    hass = Mock()
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    result = await flow._show_config_form(
+        name="test", latitude='0', longitude='0')
+
+    assert result['type'] == 'form'
+    assert result['step_id'] == 'user'
+
+
+async def test_flow_with_home_location(hass):
+    """Test config flow .
+
+    Tests the flow when a default location is configured
+    then it should return a form with default values
+    """
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    hass.config.location_name = 'Home'
+    hass.config.latitude = 1
+    hass.config.longitude = 1
+
+    result = await flow.async_step_user()
+    assert result['type'] == 'form'
+    assert result['step_id'] == 'user'
+
+
+async def test_flow_show_form():
+    """Test show form scenarios first time.
+
+    Test when the form should show when no configurations exists
+    """
+    hass = Mock()
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    with \
+        patch.object(flow, '_show_config_form',
+                     return_value=mock_coro()) as config_form:
+        await flow.async_step_user()
+        assert len(config_form.mock_calls) == 1
+
+
+async def test_flow_entry_created_from_user_input():
+    """Test that create data from user input.
+
+    Test when the form should show when no configurations exists
+    """
+    hass = Mock()
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    test_data = {'name': 'home', CONF_LONGITUDE: '0', CONF_LATITUDE: '0'}
+
+    # Test that entry created when user_input name not exists
+    with \
+        patch.object(flow, '_show_config_form',
+                     return_value=mock_coro()) as config_form,\
+        patch.object(flow.hass.config_entries, 'async_entries',
+                     return_value=mock_coro()) as config_entries:
+
+        result = await flow.async_step_user(user_input=test_data)
+
+        assert result['type'] == 'create_entry'
+        assert result['data'] == test_data
+        assert len(config_entries.mock_calls) == 1
+        assert not config_form.mock_calls
+
+
+async def test_flow_entry_config_entry_already_exists():
+    """Test that create data from user input and config_entry already exists.
+
+    Test when the form should show when user puts existing name
+    in the config gui. Then the form should show with error
+    """
+    hass = Mock()
+    flow = config_flow.IpmaFlowHandler()
+    flow.hass = hass
+
+    test_data = {'name': 'home', CONF_LONGITUDE: '0', CONF_LATITUDE: '0'}
+
+    # Test that entry created when user_input name not exists
+    with \
+        patch.object(flow, '_show_config_form',
+                     return_value=mock_coro()) as config_form,\
+        patch.object(flow.hass.config_entries, 'async_entries',
+                     return_value={'home': test_data}) as config_entries:
+
+        await flow.async_step_user(user_input=test_data)
+
+        assert len(config_form.mock_calls) == 1
+        assert len(config_entries.mock_calls) == 1
+        assert len(flow._errors) == 1