# MCP Test Suite Architecture

This directory contains the modern async MCP test suite with comprehensive
type safety, designed for maintainability and development efficiency.

## Current Test Structure

The test suite is organized around comprehensive validation with the main test runner providing full coverage:

```text
tests/
├── __init__.py                         # Package initialization
├── README.md                           # This file
├── mcp_test_base.py                    # Base test infrastructure
├── mcp_test_fixtures.py                # Test fixtures and setup
├── mcp_test_helpers.py                 # Test utilities and helper functions
├── test_advanced_connections.py        # Advanced connection validation
├── test_advanced_sequential_logic.py   # Advanced sequential logic tests
├── test_basic_protocol.py              # Protocol communication and JSON-RPC 2.0 validation
├── test_circuit_connections.py         # Circuit connection validation
├── test_circuit_topology.py            # Circuit topology and structure tests
├── test_config.py                      # Configuration testing
├── test_edge_cases_validation.py       # Edge case validation
├── test_element_operations.py          # Element operation tests
├── test_element_transformations.py     # Element transformation tests
├── test_element_type_coverage.py       # Element type coverage tests
├── test_file_operations.py             # File I/O operations tests
├── test_ic_operations.py               # IC operation tests
├── test_integration_workflows.py       # End-to-end integration tests
├── test_logic_gates.py                 # Logic gate behavior tests
├── test_negative_cases.py              # Negative/error case testing
├── test_parameter_validation.py        # Parameter validation tests
├── test_performance.py                 # Performance benchmarking
├── test_performance_timing.py          # Timing performance tests
├── test_sequential.py                  # Sequential logic tests
├── test_simulation.py                  # Simulation engine tests
├── test_waveform_analysis.py           # Waveform analysis tests
├── test_wireless_node.py               # Wireless node tests
└── test_images/                        # Test reference images

## Running Tests

From the `MCP/` directory:

### Main Test Suite

```bash
cd MCP/Client
python run_tests.py                     # Run comprehensive test suite
python run_tests.py --verbose           # Run with verbose output
```

### Individual Test Components

```bash
cd mcp/client
python -m pytest tests/test_basic_protocol.py          # Protocol validation tests
python -m pytest tests/ -v                             # Verbose test output
python -m pytest tests/ -k "element"                   # Filter by test name
python -m pytest tests/test_performance.py             # Performance tests only
```

## Test Architecture

### Comprehensive Test Coverage

The test suite provides full validation across all MCP functionality:

1. **Protocol Tests**: JSON-RPC 2.0 compliance and communication validation
2. **Command Tests**: All 32+ commands with valid and invalid parameter testing
3. **Integration Tests**: End-to-end circuit creation, simulation, and export workflows
4. **Performance Tests**: Response time validation and load testing
5. **Error Handling**: Edge cases, malformed inputs, and recovery testing
6. **Sequential Logic**: Advanced sequential logic testing
7. **Waveform Analysis**: Comprehensive waveform testing

### Modern Async Test Structure

All tests use modern async patterns with comprehensive type safety:

```python
from mcp_client.mcp_infrastructure import MCPInfrastructure
from mcp_client.mcp_runner import MCPTestRunner
from beartype import beartype
from typing import Optional
import asyncio

class CircuitTestSuite:
    @beartype
    async def run_circuit_tests(self) -> bool:
        """Run async tests with full type safety"""
        runner = MCPTestRunner(enable_validation=True, verbose=False)
        await runner.start_mcp()

        try:
            # Test implementation with async/await and type checking
            result = await self.test_element_creation(runner)
            return result
        finally:
            await runner.stop_mcp()

    @beartype
    async def test_element_creation(self, runner: MCPTestRunner) -> bool:
        """Type-safe async test method"""
        response = await runner.send_command("create_element", {
            "type": "And", "x": 200, "y": 100
        })
        return runner.assert_success(response, "test_element_creation")
```

## Current Architecture Benefits

### **Type Safety & Validation**

- **Runtime Validation**: Comprehensive beartype + pydantic validation at all interface boundaries
- **Compile-Time Checking**: Full mypy compatibility with strict type checking
- **Parameter Validation**: JSON-RPC 2.0 schema validation with detailed error reporting
- **Null Safety**: Comprehensive null-safe patterns throughout the codebase
- **Error Handling**: Structured exception handling with detailed context

### **Modern Async Performance**

- **Event-Driven I/O**: Complete async/await patterns replacing blocking operations
- **Concurrent Testing**: Parallel test execution with proper resource management
- **Resource Management**: Automatic cleanup with context managers and proper teardown
- **Timeout Handling**: Configurable timeouts with graceful degradation
- **Process Management**: Robust subprocess handling with signal management

### **Developer Experience**

- **Clear API**: Well-documented async interfaces with comprehensive type hints
- **Comprehensive Coverage**: 8,400+ lines of tests covering all MCP functionality
- **Fast Feedback**: Sub-second test execution for individual test components
- **Debugging Support**: Detailed logging and error reporting for test failures
- **Code Quality**: Consistent formatting and linting standards across all test code
