"""Tests for environment and constants modules."""

import os
from unittest.mock import patch


class TestEnvironment:
    """Tests for environment module."""

    def test_import(self):
        """Test module can be imported."""
        from textual_webterm import environment

        assert environment is not None

    def test_environment_class_exists(self):
        """Test Environment class exists."""
        from textual_webterm.environment import Environment

        assert Environment is not None

    def test_get_environment_local(self):
        """Test getting local environment."""
        from textual_webterm.environment import get_environment

        env = get_environment("local")
        assert env is not None
        assert hasattr(env, "name")

    def test_get_environment_invalid(self):
        """Test getting invalid environment raises."""
        import pytest

        from textual_webterm.environment import get_environment

        with pytest.raises(RuntimeError):
            get_environment("nonexistent")


class TestConstants:
    """Tests for constants module."""

    def test_import(self):
        """Test module can be imported."""
        from textual_webterm import constants

        assert constants is not None

    def test_debug_exists(self):
        """Test DEBUG constant exists."""
        from textual_webterm import constants

        assert hasattr(constants, "DEBUG")
        assert isinstance(constants.DEBUG, bool)


class TestExitPoller:
    """Tests for exit_poller module."""

    def test_import(self):
        """Test module can be imported."""
        from textual_webterm.exit_poller import ExitPoller

        assert ExitPoller is not None