tests/unit/test_config.py - develop-0.4 - liquid-g/liquid-code

tests/unit/test_config.py
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0.4.15 - Улучшение обработки исключений и структура документации по middleware
06 июл 2026, 17:30
06 июл 2026, 17:3030f3e0a
"""Unit-тесты для config.py."""

import pytest
import tempfile
import os
from unittest.mock import patch


class TestLoadConfig:
    """Тесты для load_config()."""

    def test_load_yaml_config(self):
        """Загрузка YAML конфига."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.yaml")
            with open(config_path, "w") as f:
                f.write("host: localhost\nport: 8000\n")

            from liquidcode.config import load_config

            config = load_config(config_path)

            assert config["host"] == "localhost"
            assert config["port"] == 8000

    def test_load_json_config(self):
        """Загрузка JSON конфига."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.json")
            with open(config_path, "w") as f:
                f.write('{"host": "localhost", "port": 8000}')

            from liquidcode.config import load_config

            config = load_config(config_path)

            assert config["host"] == "localhost"
            assert config["port"] == 8000

    def test_config_file_not_found(self):
        """Файл конфига не найден."""
        from liquidcode.config import load_config, ConfigError

        with pytest.raises(ConfigError) as exc_info:
            load_config("nonexistent.yaml")

        assert "not found" in str(exc_info.value)

    def test_invalid_yaml_syntax(self):
        """Неверный синтаксис YAML."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.yaml")
            with open(config_path, "w") as f:
                f.write("host: localhost\n  invalid:\n    key")

            from liquidcode.config import load_config, ConfigError

            with pytest.raises(ConfigError) as exc_info:
                load_config(config_path)

            assert "Invalid YAML" in str(exc_info.value)

    def test_invalid_json_syntax(self):
        """Неверный синтаксис JSON."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.json")
            with open(config_path, "w") as f:
                f.write('{"host": "localhost", "port": }')

            from liquidcode.config import load_config, ConfigError

            with pytest.raises(ConfigError) as exc_info:
                load_config(config_path)

            assert "Invalid JSON" in str(exc_info.value)

    def test_unsupported_format(self):
        """Неподдерживаемый формат файла."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.txt")
            with open(config_path, "w") as f:
                f.write("host: localhost")

            from liquidcode.config import load_config, ConfigError

            with pytest.raises(ConfigError) as exc_info:
                load_config(config_path)

            assert "Unsupported config format" in str(exc_info.value)

    def test_empty_yaml_file(self):
        """Пустой YAML файл."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.yaml")
            with open(config_path, "w") as f:
                f.write("")

            from liquidcode.config import load_config

            config = load_config(config_path)

            assert config == {}

    def test_yaml_with_only_comments(self):
        """YAML файл только с комментариями."""
        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.yaml")
            with open(config_path, "w") as f:
                f.write("# This is a comment\n# Another comment\n")

            from liquidcode.config import load_config

            config = load_config(config_path)

            assert config == {}

    def test_yaml_file_not_found(self):
        """YAML файл не найден."""
        from liquidcode.config import load_config, ConfigError

        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "nonexistent.yaml")

            with pytest.raises(ConfigError) as exc_info:
                load_config(config_path)

            assert "not found" in str(exc_info.value)

    def test_json_file_not_found(self):
        """JSON файл не найден."""
        from liquidcode.config import load_config, ConfigError

        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "nonexistent.json")

            with pytest.raises(ConfigError) as exc_info:
                load_config(config_path)

            assert "not found" in str(exc_info.value)
            assert exc_info.value.error_type == ConfigError.FILE_NOT_FOUND

    def test_permission_error(self):
        """Ошибка доступа к файлу (с mock для эмуляции PermissionError)."""
        from liquidcode.config import load_config, ConfigError

        with tempfile.TemporaryDirectory() as tmpdir:
            config_path = os.path.join(tmpdir, "config.yaml")
            with open(config_path, "w") as f:
                f.write("host: localhost")

            # Эмулируем PermissionError с помощью mock
            with patch("builtins.open", side_effect=PermissionError("Permission denied")):
                with pytest.raises(ConfigError) as exc_info:
                    load_config(config_path)

                assert exc_info.value.error_type == ConfigError.PERMISSION_DENIED
                assert "Permission denied" in str(exc_info.value)


class TestConfigError:
    """Тесты для ConfigError."""

    def test_config_error_inherits_exception(self):
        """ConfigError наследуется от Exception."""
        from liquidcode.config import ConfigError

        error = ConfigError("Test error")
        assert isinstance(error, Exception)

    def test_config_error_with_error_type(self):
        """ConfigError поддерживает error_type."""
        from liquidcode.config import ConfigError

        error = ConfigError("Test error", error_type=ConfigError.FILE_NOT_FOUND)
        assert error.error_type == ConfigError.FILE_NOT_FOUND
        assert str(error) == "Test error"

    def test_config_error_default_error_type(self):
        """ConfigError по умолчанию имеет None error_type."""
        from liquidcode.config import ConfigError

        error = ConfigError("Test error")
        assert error.error_type is None