test: Add ConfigManager fixture to tests

This commit adds a new fixture, `config_manager`, to the tests. The fixture is used to initialize the `ConfigManager` class with an environment file specified as `.env.example`. This fixture will be used in future tests to access and manipulate configuration settings.

Refactor the ConfigManager initialization tests

This commit refactors the initialization tests for the `ConfigManager` class. It adds two new tests: `test_init_with_env_variables` and `test_init_with_env_file`.

The `test_init_with_env_variables` test verifies that the `ConfigManager` class can be initialized with environment variables. It sets the required environment variables and asserts that the `ConfigManager` instance is correctly initialized with the expected values.

The `test_init_with_env_file` test verifies that the `ConfigManager` class can be initialized with an environment file. It mocks the existence of the environment file and asserts that the `ConfigManager` instance is correctly initialized with the expected values from the file.

These changes improve the test coverage and ensure that the `ConfigManager` class is properly tested for different initialization scenarios.

tests/conftest.py

@@ -7,6 +7,7 @@
 from pytest_mock import MockerFixture
 
 from chaturbate_poller.chaturbate_client import ChaturbateClient
+from chaturbate_poller.config_manager import ConfigManager
 from chaturbate_poller.influxdb_handler import InfluxDBHandler
 from chaturbate_poller.logging_config import (
     CustomFormatter,
@@ -86,6 +87,12 @@ def setup_logging() -> None:
     logging.getLogger().setLevel(logging.DEBUG)
 
 
+@pytest.fixture(scope="module")
+def config_manager() -> ConfigManager:
+    """Fixture for the ConfigManager."""
+    return ConfigManager(env_file=".env.example")
+
+
 @pytest.fixture
 def http_client_mock(mocker: MockerFixture) -> Any:
     """Fixture for mocking the httpx.AsyncClient.get method."""

tests/test_config_manager.py

@@ -1,3 +1,7 @@
+import os
+from pathlib import Path
+from unittest import mock
+
 from chaturbate_poller.config_manager import ConfigManager
 
 
@@ -8,3 +12,28 @@ def test_get_with_default(self) -> None:
         """Test the get method with a default value."""
         config_manager = ConfigManager()
         assert config_manager.get("NON_EXISTENT_KEY", "default_value") == "default_value"
+
+    @mock.patch.dict(
+        os.environ,
+        {
+            "CB_USERNAME": "test_user",
+            "CB_TOKEN": "test_token",
+            "INFLUXDB_URL": "http://localhost:8086",
+            "USE_DATABASE": "true",
+        },
+    )
+    def test_init_with_env_variables(self) -> None:
+        """Test initialization with environment variables."""
+        config_manager = ConfigManager()
+        assert config_manager.config["CB_USERNAME"] == "test_user"
+        assert config_manager.config["CB_TOKEN"] == "test_token"  # noqa: S105
+        assert config_manager.config["INFLUXDB_URL"] == "http://localhost:8086"
+        assert config_manager.config["USE_DATABASE"] is True
+
+    @mock.patch("chaturbate_poller.config_manager.load_dotenv")
+    @mock.patch("chaturbate_poller.config_manager.Path.exists", return_value=True)
+    def test_init_with_env_file(self, mock_exists, mock_load_dotenv) -> None:  # noqa: ANN001, ARG002
+        """Test initialization with an environment file."""
+        config_manager = ConfigManager(env_file="test.env")
+        mock_load_dotenv.assert_called_once_with(dotenv_path=Path("test.env"))
+        assert config_manager.config == {"USE_DATABASE": False}