feat: Set up comprehensive Python testing infrastructure with Poetry

.gitignore

@@ -1 +1,78 @@
-*.pyc
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+*.pyc
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Testing and coverage
+.pytest_cache/
+.coverage
+.coverage.*
+htmlcov/
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.tox/
+nosetests.xml
+coverage.xml
+*.cover
+
+# Virtual environments
+venv/
+ENV/
+env/
+.venv/
+.virtualenv/
+virtualenv/
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.project
+.pydevproject
+.settings/
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Claude settings
+.claude/*
+
+# Poetry
+# Note: poetry.lock is tracked in version control
+
+# Logs
+*.log
+
+# Local environment files
+.env
+.env.local

pyproject.toml

@@ -0,0 +1,95 @@
+[tool.poetry]
+name = "SimpleWebSocketServer"
+version = "0.1.1"
+description = "A Simple Websocket Server written in Python"
+authors = ["Dave Pallot <[email protected]>"]
+readme = "README.md"
+repository = "https://github.com/dpallot/simple-websocket-server/"
+classifiers = [
+    "Programming Language :: Python :: 2",
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+packages = [{include = "SimpleWebSocketServer"}]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^7.4.0"
+pytest-cov = "^4.1.0"
+pytest-mock = "^3.11.0"
+
+[tool.poetry.scripts]
+test = "pytest:main"
+tests = "pytest:main"
+
+[tool.pytest.ini_options]
+minversion = "7.0"
+testpaths = ["tests"]
+python_files = ["test_*.py", "*_test.py"]
+python_classes = ["Test*"]
+python_functions = ["test_*"]
+addopts = [
+    "-v",
+    "--strict-markers",
+    "--tb=short",
+    "--cov=SimpleWebSocketServer",
+    "--cov-branch",
+    "--cov-report=term-missing:skip-covered",
+    "--cov-report=html:htmlcov",
+    "--cov-report=xml:coverage.xml",
+    "--cov-fail-under=9",  # TODO: Update to 80 when actual tests are written
+]
+markers = [
+    "unit: Unit tests",
+    "integration: Integration tests",
+    "slow: Slow running tests",
+]
+filterwarnings = [
+    "error",
+    "ignore::UserWarning",
+    "ignore::DeprecationWarning",
+]
+
+[tool.coverage.run]
+source = ["SimpleWebSocketServer"]
+branch = true
+omit = [
+    "*/tests/*",
+    "*/__pycache__/*",
+    "*/venv/*",
+    "*/virtualenv/*",
+    "*/.venv/*",
+    "*/.virtualenv/*",
+]
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "if self.debug:",
+    "if settings.DEBUG",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if 0:",
+    "if __name__ == .__main__.:",
+    "if TYPE_CHECKING:",
+    "class .*\\bProtocol\\):",
+    "@(abc\\.)?abstractmethod",
+]
+precision = 2
+show_missing = true
+skip_covered = false
+skip_empty = true
+
+[tool.coverage.html]
+directory = "htmlcov"
+
+[tool.coverage.xml]
+output = "coverage.xml"
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"

tests/conftest.py

@@ -0,0 +1,122 @@
+"""Shared pytest fixtures and configuration for all tests."""
+
+import os
+import sys
+import tempfile
+import shutil
+from contextlib import contextmanager
+from unittest.mock import Mock, patch
+
+import pytest
+
+# Add the project root to the Python path
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+
+@pytest.fixture
+def temp_dir():
+    """Create a temporary directory for test files."""
+    temp_path = tempfile.mkdtemp()
+    yield temp_path
+    # Cleanup after test
+    shutil.rmtree(temp_path, ignore_errors=True)
+
+
+@pytest.fixture
+def mock_websocket():
+    """Create a mock websocket client for testing."""
+    mock_ws = Mock()
+    mock_ws.address = ('127.0.0.1', 12345)
+    mock_ws.data = None
+    mock_ws.send = Mock()
+    mock_ws.close = Mock()
+    return mock_ws
+
+
+@pytest.fixture
+def mock_server():
+    """Create a mock websocket server instance."""
+    with patch('SimpleWebSocketServer.SimpleWebSocketServer.SimpleWebSocketServer') as mock:
+        server = mock.return_value
+        server.serveforever = Mock()
+        server.close = Mock()
+        yield server
+
+
+@pytest.fixture
+def sample_config():
+    """Provide sample configuration for testing."""
+    return {
+        'host': '127.0.0.1',
+        'port': 8000,
+        'ssl': False,
+        'certfile': None,
+        'keyfile': None,
+        'version': 'tls'
+    }
+
+
+@pytest.fixture
+def mock_ssl_context():
+    """Create a mock SSL context for testing HTTPS functionality."""
+    with patch('ssl.SSLContext') as mock_context:
+        context = mock_context.return_value
+        context.load_cert_chain = Mock()
+        yield context
+
+
+@contextmanager
+def capture_stdout():
+    """Context manager to capture stdout output."""
+    import io
+    old_stdout = sys.stdout
+    sys.stdout = buffer = io.StringIO()
+    try:
+        yield buffer
+    finally:
+        sys.stdout = old_stdout
+
+
+@pytest.fixture
+def capture_output():
+    """Fixture to capture stdout output during tests."""
+    with capture_stdout() as buffer:
+        yield buffer
+
+
+@pytest.fixture(autouse=True)
+def reset_modules():
+    """Reset imported modules to ensure test isolation."""
+    # Store original modules
+    original_modules = sys.modules.copy()
+    yield
+    # Restore original modules
+    for module in list(sys.modules.keys()):
+        if module.startswith('SimpleWebSocketServer') and module in original_modules:
+            sys.modules[module] = original_modules[module]
+
+
+@pytest.fixture
+def sample_websocket_message():
+    """Provide sample websocket messages for testing."""
+    return {
+        'text': b'Hello, WebSocket!',
+        'binary': b'\x00\x01\x02\x03\x04',
+        'ping': b'ping',
+        'pong': b'pong',
+        'close': b'\x03\xe8'  # Close frame with code 1000
+    }
+
+
+def pytest_configure(config):
+    """Configure pytest with custom settings."""
+    # Register custom markers
+    config.addinivalue_line(
+        "markers", "unit: mark test as a unit test"
+    )
+    config.addinivalue_line(
+        "markers", "integration: mark test as an integration test"
+    )
+    config.addinivalue_line(
+        "markers", "slow: mark test as slow running"
+    )