"""Tests for configuration module."""


class TestConfigEnvVars:
    """Tests for environment variable configuration."""

    def test_default_values(self):
        """Test that default values are set."""
        from config import DEBUG, HOST, PORT

        assert PORT == 5050
        assert HOST == "0.0.0.0"
        assert DEBUG is False

    def test_env_override(self, monkeypatch):
        """Test that environment variables override defaults."""
        monkeypatch.setenv("INTERCEPT_PORT", "8080")
        monkeypatch.setenv("INTERCEPT_DEBUG", "true")

        # Re-import to get new values
        import importlib

        import config

        importlib.reload(config)

        assert config.PORT == 8080
        assert config.DEBUG is True

        # Reset
        monkeypatch.delenv("INTERCEPT_PORT", raising=False)
        monkeypatch.delenv("INTERCEPT_DEBUG", raising=False)
        importlib.reload(config)

    def test_invalid_env_values(self, monkeypatch):
        """Test that invalid env values fall back to defaults."""
        monkeypatch.setenv("INTERCEPT_PORT", "invalid")

        import importlib

        import config

        importlib.reload(config)

        # Should fall back to default
        assert config.PORT == 5050

        monkeypatch.delenv("INTERCEPT_PORT", raising=False)
        importlib.reload(config)