Ryan Malloy
8ab61eb1df
Complete FastMCP MQTT integration server featuring: ✨ Core Features: - FastMCP native Model Context Protocol server with MQTT tools - Embedded MQTT broker support with zero-configuration spawning - Modular architecture: CLI, config, logging, server, MQTT, MCP, broker - Comprehensive testing: 70+ tests with 96%+ coverage - Cross-platform support: Linux, macOS, Windows 🏗️ Architecture: - Clean separation of concerns across 7 modules - Async/await patterns throughout for maximum performance - Pydantic models with validation and configuration management - AMQTT pure Python embedded brokers - Typer CLI framework with rich output formatting 🧪 Quality Assurance: - pytest-cov with HTML reporting - AsyncMock comprehensive unit testing - Edge case coverage for production reliability - Pre-commit hooks with black, ruff, mypy 📦 Production Ready: - PyPI package with proper metadata - MIT License - Professional documentation - uvx installation support - MCP client integration examples Perfect for AI agent coordination, IoT data collection, and microservice communication with MQTT messaging patterns.
269 lines
8.3 KiB
Python
269 lines
8.3 KiB
Python
"""Tests for main.py CLI entry point with real imports."""
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import os
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import tempfile
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from unittest.mock import patch, MagicMock, AsyncMock
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from typer.testing import CliRunner
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import pytest
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def test_main_imports():
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"""Test all main.py imports and basic functionality."""
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# Import everything to get coverage
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from mcmqtt.main import (
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app, setup_logging, get_version, create_mqtt_config_from_env,
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serve, version, health, config, main, console
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)
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# Test console exists
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assert console is not None
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# Test logging setup variations
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setup_logging("INFO")
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setup_logging("DEBUG")
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setup_logging("WARNING")
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setup_logging("ERROR")
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setup_logging("CRITICAL")
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# Test version function
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version_str = get_version()
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assert isinstance(version_str, str)
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assert len(version_str) > 0
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# Test MQTT config creation with no env vars (clear environment first)
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with patch.dict(os.environ, {}, clear=True):
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config_result = create_mqtt_config_from_env()
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assert config_result is None # No MQTT_BROKER_HOST set
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def test_cli_help():
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"""Test CLI help command."""
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from mcmqtt.main import app
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runner = CliRunner()
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result = runner.invoke(app, ["--help"])
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assert result.exit_code == 0
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assert "serve" in result.stdout
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def test_cli_version():
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"""Test CLI version command."""
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from mcmqtt.main import app
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runner = CliRunner()
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result = runner.invoke(app, ["version"])
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assert result.exit_code == 0
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assert "mcmqtt version:" in result.stdout
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@patch('mcmqtt.main.asyncio.run')
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@patch('mcmqtt.main.MCMQTTServer')
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def test_serve_basic(mock_server_class, mock_asyncio_run):
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"""Test basic serve command."""
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from mcmqtt.main import app
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mock_server = AsyncMock()
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mock_server_class.return_value = mock_server
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runner = CliRunner()
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result = runner.invoke(app, ["serve"])
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assert result.exit_code == 0
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mock_server_class.assert_called_once()
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mock_asyncio_run.assert_called_once()
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@patch('mcmqtt.main.asyncio.run')
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@patch('mcmqtt.main.MCMQTTServer')
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def test_serve_with_mqtt_options(mock_server_class, mock_asyncio_run):
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"""Test serve command with MQTT options."""
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from mcmqtt.main import app
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mock_server = AsyncMock()
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mock_server_class.return_value = mock_server
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runner = CliRunner()
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result = runner.invoke(app, [
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"serve",
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"--host", "127.0.0.1",
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"--port", "8883",
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"--mqtt-host", "localhost",
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"--mqtt-port", "1884",
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"--mqtt-client-id", "test-client",
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"--mqtt-username", "testuser",
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"--mqtt-password", "testpass",
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"--log-level", "DEBUG",
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"--auto-connect"
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])
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assert result.exit_code == 0
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mock_server_class.assert_called_once()
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def test_config_command():
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"""Test config command."""
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from mcmqtt.main import app
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runner = CliRunner()
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result = runner.invoke(app, ["config"])
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assert result.exit_code == 0
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assert "Configuration Sources:" in result.stdout
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assert "Environment Variables:" in result.stdout
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def test_health_command_success():
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"""Test health command with successful response."""
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from mcmqtt.main import app
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import httpx
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mock_response = MagicMock()
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mock_response.status_code = 200
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mock_response.json.return_value = {"status": "healthy"}
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with patch('httpx.get', return_value=mock_response):
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runner = CliRunner()
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result = runner.invoke(app, ["health", "--host", "localhost", "--port", "3000"])
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assert result.exit_code == 0
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assert "Server is healthy" in result.stdout
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def test_health_command_connection_error():
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"""Test health command with connection error."""
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from mcmqtt.main import app
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import httpx
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with patch('httpx.get', side_effect=httpx.ConnectError("Connection failed")):
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runner = CliRunner()
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result = runner.invoke(app, ["health"])
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assert result.exit_code == 1
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assert "Cannot connect to server" in result.stdout
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def test_health_command_unhealthy():
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"""Test health command with unhealthy response."""
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from mcmqtt.main import app
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mock_response = MagicMock()
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mock_response.status_code = 500
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with patch('httpx.get', return_value=mock_response):
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runner = CliRunner()
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result = runner.invoke(app, ["health"])
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assert result.exit_code == 1
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assert "Server unhealthy" in result.stdout
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def test_mqtt_config_from_env_with_values():
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"""Test MQTT config creation with environment variables."""
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from mcmqtt.main import create_mqtt_config_from_env
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env_vars = {
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'MQTT_BROKER_HOST': 'test-broker',
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'MQTT_BROKER_PORT': '1884',
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'MQTT_CLIENT_ID': 'test-client',
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'MQTT_USERNAME': 'testuser',
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'MQTT_PASSWORD': 'testpass',
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'MQTT_KEEPALIVE': '120',
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'MQTT_QOS': '2',
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'MQTT_USE_TLS': 'true',
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'MQTT_CLEAN_SESSION': 'false',
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'MQTT_RECONNECT_INTERVAL': '10',
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'MQTT_MAX_RECONNECT_ATTEMPTS': '5'
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}
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with patch.dict(os.environ, env_vars):
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config = create_mqtt_config_from_env()
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assert config is not None
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assert config.broker_host == 'test-broker'
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assert config.broker_port == 1884
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assert config.client_id == 'test-client'
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assert config.username == 'testuser'
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assert config.password == 'testpass'
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assert config.keepalive == 120
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assert config.qos.value == 2
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assert config.use_tls is True
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assert config.clean_session is False
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assert config.reconnect_interval == 10
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assert config.max_reconnect_attempts == 5
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def test_mqtt_config_from_env_error_handling():
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"""Test MQTT config creation with invalid environment variables."""
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from mcmqtt.main import create_mqtt_config_from_env
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# Test with invalid port
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env_vars = {
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'MQTT_BROKER_HOST': 'test-broker',
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'MQTT_BROKER_PORT': 'invalid-port'
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}
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with patch.dict(os.environ, env_vars):
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config = create_mqtt_config_from_env()
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assert config is None # Should fail gracefully
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def test_mqtt_config_from_env_missing_host():
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"""Test MQTT config creation without broker host."""
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from mcmqtt.main import create_mqtt_config_from_env
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# Clear any existing env vars
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with patch.dict(os.environ, {}, clear=True):
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config = create_mqtt_config_from_env()
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assert config is None
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@patch('mcmqtt.main.app')
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def test_main_function_direct_call(mock_app):
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"""Test calling main function directly."""
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from mcmqtt.main import main
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main()
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mock_app.assert_called_once()
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def test_import_all_dependencies():
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"""Test that all required dependencies can be imported."""
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from mcmqtt.main import (
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typer, Console, RichHandler, structlog,
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MQTTConfig, MQTTQoS, MCMQTTServer
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)
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# All imports should succeed
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assert typer is not None
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assert Console is not None
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assert RichHandler is not None
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assert structlog is not None
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assert MQTTConfig is not None
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assert MQTTQoS is not None
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assert MCMQTTServer is not None
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def test_structlog_configuration():
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"""Test structlog configuration in logging setup."""
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from mcmqtt.main import setup_logging
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import structlog
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# Test that structlog is properly configured
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setup_logging("DEBUG")
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# Should be able to get a logger
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logger = structlog.get_logger()
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assert logger is not None
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def test_get_version_fallback():
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"""Test version function fallback behavior."""
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from mcmqtt.main import get_version
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# Mock importlib.metadata.version to raise exception
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with patch('mcmqtt.main.version', side_effect=Exception("Package not found")):
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version_str = get_version()
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assert version_str == "0.1.0"
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@patch('mcmqtt.main.asyncio.run')
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@patch('mcmqtt.main.MCMQTTServer')
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def test_serve_with_auto_connect(mock_server_class, mock_asyncio_run):
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"""Test serve command with auto-connect enabled."""
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from mcmqtt.main import app
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mock_server = AsyncMock()
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mock_server_class.return_value = mock_server
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runner = CliRunner()
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result = runner.invoke(app, [
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"serve",
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"--mqtt-host", "localhost",
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"--auto-connect"
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])
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assert result.exit_code == 0
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mock_server_class.assert_called_once() |