Add config entry for IQVIA (#23765)

* Add config entry for IQVIA

* Updated tests and requirements

* Removed unnecessary dependency

* Fixed tests

* Reverted unintended change

tests/components/iqvia/test_config_flow.py

@@ -0,0 +1,97 @@
+"""Define tests for the IQVIA config flow."""
+from pyiqvia.errors import IQVIAError
+import pytest
+
+from homeassistant import data_entry_flow
+from homeassistant.components.iqvia import CONF_ZIP_CODE, DOMAIN, config_flow
+
+from tests.common import MockConfigEntry, MockDependency, mock_coro
+
+
+@pytest.fixture
+def allergens_current_response():
+    """Define a fixture for a successful allergens.current response."""
+    return mock_coro()
+
+
+@pytest.fixture
+def mock_pyiqvia(allergens_current_response):
+    """Mock the pyiqvia library."""
+    with MockDependency('pyiqvia') as mock_pyiqvia_:
+        mock_pyiqvia_.Client().allergens.current.return_value = (
+            allergens_current_response)
+        yield mock_pyiqvia_
+
+
+async def test_duplicate_error(hass):
+    """Test that errors are shown when duplicates are added."""
+    conf = {
+        CONF_ZIP_CODE: '12345',
+    }
+
+    MockConfigEntry(domain=DOMAIN, data=conf).add_to_hass(hass)
+    flow = config_flow.IQVIAFlowHandler()
+    flow.hass = hass
+
+    result = await flow.async_step_user(user_input=conf)
+    assert result['errors'] == {CONF_ZIP_CODE: 'identifier_exists'}
+
+
+@pytest.mark.parametrize(
+    'allergens_current_response', [mock_coro(exception=IQVIAError)])
+async def test_invalid_zip_code(hass, mock_pyiqvia):
+    """Test that an invalid ZIP code key throws an error."""
+    conf = {
+        CONF_ZIP_CODE: 'abcde',
+    }
+
+    flow = config_flow.IQVIAFlowHandler()
+    flow.hass = hass
+
+    result = await flow.async_step_user(user_input=conf)
+    assert result['errors'] == {CONF_ZIP_CODE: 'invalid_zip_code'}
+
+
+async def test_show_form(hass):
+    """Test that the form is served with no input."""
+    flow = config_flow.IQVIAFlowHandler()
+    flow.hass = hass
+
+    result = await flow.async_step_user(user_input=None)
+
+    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
+    assert result['step_id'] == 'user'
+
+
+async def test_step_import(hass, mock_pyiqvia):
+    """Test that the import step works."""
+    conf = {
+        CONF_ZIP_CODE: '12345',
+    }
+
+    flow = config_flow.IQVIAFlowHandler()
+    flow.hass = hass
+
+    result = await flow.async_step_import(import_config=conf)
+    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+    assert result['title'] == '12345'
+    assert result['data'] == {
+        CONF_ZIP_CODE: '12345',
+    }
+
+
+async def test_step_user(hass, mock_pyiqvia):
+    """Test that the user step works."""
+    conf = {
+        CONF_ZIP_CODE: '12345',
+    }
+
+    flow = config_flow.IQVIAFlowHandler()
+    flow.hass = hass
+
+    result = await flow.async_step_user(user_input=conf)
+    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
+    assert result['title'] == '12345'
+    assert result['data'] == {
+        CONF_ZIP_CODE: '12345',
+    }