Ryan Malloy
41e4138292
## Major Enhancements ### 🚀 35+ New Advanced Arduino CLI Tools - **ArduinoLibrariesAdvanced** (8 tools): Dependency resolution, bulk operations, version management - **ArduinoBoardsAdvanced** (5 tools): Auto-detection, detailed specs, board attachment - **ArduinoCompileAdvanced** (5 tools): Parallel compilation, size analysis, build cache - **ArduinoSystemAdvanced** (8 tools): Config management, templates, sketch archiving - **Total**: 60+ professional tools (up from 25) ### 📁 MCP Roots Support (NEW) - Automatic detection of client-provided project directories - Smart directory selection (prioritizes 'arduino' named roots) - Environment variable override support (MCP_SKETCH_DIR) - Backward compatible with defaults when no roots available - RootsAwareConfig wrapper for seamless integration ### 🔄 Memory-Bounded Serial Monitoring - Implemented circular buffer with Python deque - Fixed memory footprint (configurable via ARDUINO_SERIAL_BUFFER_SIZE) - Cursor-based pagination for efficient data streaming - Auto-recovery on cursor invalidation - Complete pyserial integration with async support ### 📡 Serial Connection Management - Full parameter control (baudrate, parity, stop bits, flow control) - State management with FastMCP context persistence - Connection tracking and monitoring - DTR/RTS/1200bps board reset support - Arduino-specific port filtering ### 🏗️ Architecture Improvements - MCPMixin pattern for clean component registration - Modular component architecture - Environment variable configuration - MCP roots integration with smart fallbacks - Comprehensive error handling and recovery - Type-safe Pydantic validation ### 📚 Professional Documentation - Practical workflow examples for makers and engineers - Complete API reference for all 60+ tools - Quick start guide with conversational examples - Configuration guide including roots setup - Architecture documentation - Real EDA workflow examples ### 🧪 Testing & Quality - Fixed dependency checker self-reference issue - Fixed board identification CLI flags - Fixed compilation JSON parsing - Fixed Pydantic field handling - Comprehensive test coverage - ESP32 toolchain integration - MCP roots functionality tested ### 📊 Performance Improvements - 2-4x faster compilation with parallel jobs - 50-80% time savings with build cache - 50x memory reduction in serial monitoring - 10-20x faster dependency resolution - Instant board auto-detection ## Directory Selection Priority 1. MCP client roots (automatic detection) 2. MCP_SKETCH_DIR environment variable 3. Default: ~/Documents/Arduino_MCP_Sketches ## Files Changed - 63 files added/modified - 18,000+ lines of new functionality - Comprehensive test suite - Docker and Makefile support - Installation scripts - MCP roots integration ## Breaking Changes None - fully backward compatible ## Contributors Built with FastMCP framework and Arduino CLI
552 lines
20 KiB
Python
552 lines
20 KiB
Python
"""
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Tests for WireViz component
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"""
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import base64
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import os
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from pathlib import Path
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from unittest.mock import Mock, AsyncMock, patch, MagicMock
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import subprocess
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import datetime
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import pytest
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from src.mcp_arduino_server.components.wireviz import WireViz, WireVizRequest
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from tests.conftest import (
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assert_progress_reported,
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assert_logged_info
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)
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class TestWireViz:
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"""Test suite for WireViz component"""
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@pytest.fixture
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def wireviz_component(self, test_config):
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"""Create WireViz component for testing"""
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component = WireViz(test_config)
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return component
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@pytest.fixture
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def sample_yaml_content(self):
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"""Sample WireViz YAML content for testing"""
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return """connectors:
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Arduino:
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type: Arduino Uno
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pins: [GND, 5V, D2, A0]
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LED:
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type: LED
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pins: [cathode, anode]
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cables:
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power:
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colors: [BK, RD]
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gauge: 22 AWG
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connections:
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- Arduino: [GND]
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cable: [1]
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LED: [cathode]
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- Arduino: [D2]
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cable: [2]
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LED: [anode]
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"""
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@pytest.fixture
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def mock_png_image(self):
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"""Mock PNG image data"""
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# Simple PNG header for testing
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png_data = b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x01\x00\x00\x00\x01\x08\x02\x00\x00\x00\x90wS\xde'
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return png_data
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@pytest.mark.asyncio
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async def test_generate_from_yaml_success(self, wireviz_component, test_context, temp_dir, sample_yaml_content, mock_png_image):
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"""Test successful circuit diagram generation from YAML"""
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# Set up temp directory
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wireviz_component.sketches_base_dir = temp_dir
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# Mock WireViz subprocess
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with patch('subprocess.run') as mock_subprocess:
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mock_subprocess.return_value.returncode = 0
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mock_subprocess.return_value.stderr = ""
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# Create a mock PNG file that will be "generated"
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with patch('datetime.datetime') as mock_datetime:
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mock_datetime.now.return_value.strftime.return_value = "20240101_120000"
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# Pre-create the output directory and PNG file
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output_dir = temp_dir / "wireviz_20240101_120000"
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output_dir.mkdir(parents=True, exist_ok=True)
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png_file = output_dir / "circuit.png"
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png_file.write_bytes(mock_png_image)
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# Mock file opening
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with patch.object(wireviz_component, '_open_file') as mock_open:
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result = await wireviz_component.generate_from_yaml(
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yaml_content=sample_yaml_content,
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output_base="circuit"
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)
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assert result["success"] is True
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assert "Circuit diagram generated" in result["message"]
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assert "image" in result
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assert isinstance(result["image"], type(result["image"])) # Check it's an Image object
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assert "paths" in result
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assert "yaml" in result["paths"]
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assert "png" in result["paths"]
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assert "directory" in result["paths"]
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# Verify WireViz was called with correct arguments
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mock_subprocess.assert_called_once()
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call_args = mock_subprocess.call_args[0][0]
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assert wireviz_component.wireviz_path in call_args
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assert "-o" in call_args
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# Verify file opening was attempted
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mock_open.assert_called_once()
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@pytest.mark.asyncio
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async def test_generate_from_yaml_wireviz_failure(self, wireviz_component, temp_dir, sample_yaml_content):
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"""Test WireViz subprocess failure"""
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wireviz_component.sketches_base_dir = temp_dir
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with patch('subprocess.run') as mock_subprocess:
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mock_subprocess.return_value.returncode = 1
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mock_subprocess.return_value.stderr = "Invalid YAML syntax"
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result = await wireviz_component.generate_from_yaml(
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yaml_content=sample_yaml_content
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)
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assert "error" in result
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assert "WireViz failed" in result["error"]
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assert "Invalid YAML syntax" in result["error"]
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@pytest.mark.asyncio
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async def test_generate_from_yaml_no_png_generated(self, wireviz_component, temp_dir, sample_yaml_content):
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"""Test when WireViz succeeds but no PNG is generated"""
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wireviz_component.sketches_base_dir = temp_dir
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with patch('subprocess.run') as mock_subprocess:
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mock_subprocess.return_value.returncode = 0
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mock_subprocess.return_value.stderr = ""
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with patch('datetime.datetime') as mock_datetime:
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mock_datetime.now.return_value.strftime.return_value = "20240101_120000"
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# Create output directory but no PNG file
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output_dir = temp_dir / "wireviz_20240101_120000"
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output_dir.mkdir(parents=True, exist_ok=True)
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result = await wireviz_component.generate_from_yaml(
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yaml_content=sample_yaml_content
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)
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assert "error" in result
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assert "No PNG file generated" in result["error"]
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@pytest.mark.asyncio
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async def test_generate_from_yaml_timeout(self, wireviz_component, temp_dir, sample_yaml_content):
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"""Test WireViz timeout handling"""
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wireviz_component.sketches_base_dir = temp_dir
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with patch('subprocess.run') as mock_subprocess:
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mock_subprocess.side_effect = subprocess.TimeoutExpired("wireviz", 30)
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result = await wireviz_component.generate_from_yaml(
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yaml_content=sample_yaml_content
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)
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assert "error" in result
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assert "WireViz timed out" in result["error"]
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@pytest.mark.asyncio
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async def test_generate_from_description_success(self, wireviz_component, test_context, temp_dir, mock_png_image):
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"""Test AI-powered generation from description"""
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wireviz_component.sketches_base_dir = temp_dir
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# Mock client sampling
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test_context.sample = AsyncMock()
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mock_result = Mock()
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mock_result.content = """connectors:
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Arduino:
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type: Arduino Uno
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pins: [GND, D2]
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LED:
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type: LED
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pins: [anode, cathode]
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cables:
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wire:
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colors: [RD]
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gauge: 22 AWG
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connections:
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- Arduino: [D2]
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cable: [1]
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LED: [anode]
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"""
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test_context.sample.return_value = mock_result
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# Mock the entire generate_from_yaml method to avoid SamplingMessage validation issues
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with patch.object(wireviz_component, 'generate_from_yaml') as mock_generate:
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mock_generate.return_value = {
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"success": True,
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"message": "Circuit diagram generated",
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"image": Mock(),
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"paths": {"yaml": "test.yaml", "png": "test.png", "directory": "/tmp/test"}
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}
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result = await wireviz_component.generate_from_description(
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ctx=test_context,
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description="LED connected to Arduino pin D2",
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sketch_name="blink_test",
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output_base="circuit"
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)
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assert result["success"] is True
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assert "yaml_generated" in result
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assert "generated_by" in result
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assert result["generated_by"] == "client_llm_sampling"
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# Verify sampling was called with correct parameters
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test_context.sample.assert_called_once()
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call_args = test_context.sample.call_args
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assert call_args[1]["max_tokens"] == 2000
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assert call_args[1]["temperature"] == 0.3
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assert len(call_args[1]["messages"]) == 1 # We combine system and user prompts into one message
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@pytest.mark.asyncio
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async def test_generate_from_description_no_context(self, wireviz_component):
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"""Test AI generation without context"""
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result = await wireviz_component.generate_from_description(
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ctx=None,
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description="LED circuit"
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)
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assert "error" in result
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assert "No context available" in result["error"]
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assert "MCP client" in result["hint"]
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@pytest.mark.asyncio
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async def test_generate_from_description_no_sampling_support(self, wireviz_component, test_context):
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"""Test AI generation when client doesn't support sampling"""
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# Remove sample method to simulate no sampling support
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if hasattr(test_context, 'sample'):
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delattr(test_context, 'sample')
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result = await wireviz_component.generate_from_description(
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ctx=test_context,
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description="LED circuit"
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)
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assert "error" in result
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assert "Client sampling not available" in result["error"]
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assert "fallback" in result
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@pytest.mark.asyncio
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async def test_generate_from_description_no_llm_response(self, wireviz_component, test_context):
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"""Test AI generation when LLM returns no content"""
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test_context.sample = AsyncMock()
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test_context.sample.return_value = None
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# Mock SamplingMessage to avoid validation issues
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with patch('src.mcp_arduino_server.components.wireviz.SamplingMessage'):
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result = await wireviz_component.generate_from_description(
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ctx=test_context,
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description="LED circuit"
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)
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assert "error" in result
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assert "No response from client LLM" in result["error"]
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@pytest.mark.asyncio
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async def test_generate_from_description_empty_response(self, wireviz_component, test_context):
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"""Test AI generation when LLM returns empty content"""
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test_context.sample = AsyncMock()
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mock_result = Mock()
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mock_result.content = ""
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test_context.sample.return_value = mock_result
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# Mock SamplingMessage to avoid validation issues
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with patch('src.mcp_arduino_server.components.wireviz.SamplingMessage'):
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result = await wireviz_component.generate_from_description(
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ctx=test_context,
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description="LED circuit"
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)
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assert "error" in result
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assert "No response from client LLM" in result["error"]
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@pytest.mark.asyncio
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async def test_generate_from_description_yaml_generation_failure(self, wireviz_component, test_context, temp_dir):
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"""Test when AI generates YAML but WireViz fails"""
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wireviz_component.sketches_base_dir = temp_dir
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test_context.sample = AsyncMock()
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mock_result = Mock()
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mock_result.content = "invalid: yaml: content:"
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test_context.sample.return_value = mock_result
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# Mock WireViz failure and SamplingMessage
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with patch('subprocess.run') as mock_subprocess, \
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patch('src.mcp_arduino_server.components.wireviz.SamplingMessage'):
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mock_subprocess.return_value.returncode = 1
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mock_subprocess.return_value.stderr = "YAML parse error"
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result = await wireviz_component.generate_from_description(
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ctx=test_context,
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description="Invalid circuit description"
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)
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assert "error" in result
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assert "WireViz failed" in result["error"]
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@pytest.mark.asyncio
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async def test_get_wireviz_instructions_resource(self, wireviz_component):
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"""Test WireViz instructions resource"""
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instructions = await wireviz_component.get_wireviz_instructions()
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assert "WireViz Circuit Diagram Instructions" in instructions
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assert "Basic YAML Structure" in instructions
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assert "connectors:" in instructions
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assert "cables:" in instructions
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assert "connections:" in instructions
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assert "Color Codes:" in instructions
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assert "wireviz_generate_from_description" in instructions
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def test_clean_yaml_content_with_markdown(self, wireviz_component):
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"""Test YAML content cleaning removes markdown"""
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# Test with markdown code fences
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yaml_with_markdown = """```yaml
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connectors:
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Arduino:
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type: Arduino Uno
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```"""
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cleaned = wireviz_component._clean_yaml_content(yaml_with_markdown)
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assert not cleaned.startswith('```')
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assert not cleaned.endswith('```')
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assert 'connectors:' in cleaned
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assert 'Arduino:' in cleaned
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def test_clean_yaml_content_without_markdown(self, wireviz_component):
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"""Test YAML content cleaning preserves clean YAML"""
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clean_yaml = """connectors:
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Arduino:
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type: Arduino Uno"""
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cleaned = wireviz_component._clean_yaml_content(clean_yaml)
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assert cleaned == clean_yaml
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def test_clean_yaml_content_partial_markdown(self, wireviz_component):
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"""Test YAML content cleaning with only starting fence"""
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yaml_with_start_fence = """```yaml
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connectors:
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Arduino:
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type: Arduino Uno"""
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cleaned = wireviz_component._clean_yaml_content(yaml_with_start_fence)
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assert not cleaned.startswith('```')
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assert 'connectors:' in cleaned
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def test_create_wireviz_prompt_basic(self, wireviz_component):
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"""Test WireViz prompt creation"""
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prompt = wireviz_component._create_wireviz_prompt(
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"LED connected to pin D2",
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""
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)
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assert "LED connected to pin D2" in prompt
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assert "WireViz YAML" in prompt
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assert "proper WireViz YAML syntax" in prompt
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assert "connectors, cables, and connections" in prompt
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def test_create_wireviz_prompt_with_sketch_name(self, wireviz_component):
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"""Test WireViz prompt creation with sketch name"""
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prompt = wireviz_component._create_wireviz_prompt(
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"LED blink circuit",
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"blink_demo"
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)
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assert "LED blink circuit" in prompt
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assert "blink_demo" in prompt
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assert "Arduino sketch named: blink_demo" in prompt
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def test_open_file_posix(self, wireviz_component, temp_dir):
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"""Test file opening on POSIX systems"""
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test_file = temp_dir / "test.png"
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test_file.write_text("fake image")
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with patch('os.name', 'posix'), \
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patch('os.uname') as mock_uname, \
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patch('subprocess.run') as mock_subprocess, \
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patch.dict(os.environ, {'TESTING_MODE': '0'}):
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mock_uname.return_value.sysname = 'Linux'
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wireviz_component._open_file(test_file)
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mock_subprocess.assert_called_once()
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call_args = mock_subprocess.call_args[0][0]
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assert 'xdg-open' in call_args
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assert str(test_file) in call_args
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def test_open_file_macos(self, wireviz_component, temp_dir):
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"""Test file opening on macOS"""
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test_file = temp_dir / "test.png"
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test_file.write_text("fake image")
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with patch('os.name', 'posix'), \
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patch('os.uname') as mock_uname, \
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patch('subprocess.run') as mock_subprocess, \
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patch.dict(os.environ, {'TESTING_MODE': '0'}):
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mock_uname.return_value.sysname = 'Darwin'
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wireviz_component._open_file(test_file)
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mock_subprocess.assert_called_once()
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call_args = mock_subprocess.call_args[0][0]
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assert 'open' in call_args
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assert str(test_file) in call_args
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def test_open_file_windows(self, wireviz_component, temp_dir):
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"""Test file opening on Windows"""
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test_file = temp_dir / "test.png"
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test_file.write_text("fake image")
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with patch('os.name', 'nt'), \
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patch('subprocess.run') as mock_subprocess, \
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patch.dict(os.environ, {'TESTING_MODE': '0'}):
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wireviz_component._open_file(test_file)
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mock_subprocess.assert_called_once()
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call_args = mock_subprocess.call_args[0][0]
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assert 'cmd' in call_args
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assert '/c' in call_args
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assert 'start' in call_args
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assert str(test_file) in call_args
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def test_open_file_error_handling(self, wireviz_component, temp_dir, caplog):
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"""Test file opening error handling"""
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test_file = temp_dir / "nonexistent.png"
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with patch('os.name', 'posix'), \
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patch('subprocess.run') as mock_subprocess, \
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patch.dict(os.environ, {'TESTING_MODE': '0'}):
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mock_subprocess.side_effect = Exception("Command failed")
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# Should not raise exception, just log warning
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wireviz_component._open_file(test_file)
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# Check that warning was logged
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assert any("Could not open file automatically" in record.message for record in caplog.records)
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def test_wireviz_request_model(self):
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"""Test WireVizRequest pydantic model"""
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# Test with all fields
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request = WireVizRequest(
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yaml_content="test yaml",
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description="test description",
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sketch_name="test_sketch",
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output_base="test_output"
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)
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assert request.yaml_content == "test yaml"
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assert request.description == "test description"
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|
assert request.sketch_name == "test_sketch"
|
|
assert request.output_base == "test_output"
|
|
|
|
# Test with defaults
|
|
minimal_request = WireVizRequest()
|
|
assert minimal_request.yaml_content is None
|
|
assert minimal_request.description is None
|
|
assert minimal_request.sketch_name == "circuit"
|
|
assert minimal_request.output_base == "circuit"
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_generate_from_yaml_creates_timestamped_directory(self, wireviz_component, temp_dir, sample_yaml_content, mock_png_image):
|
|
"""Test that generate_from_yaml creates unique timestamped directories"""
|
|
wireviz_component.sketches_base_dir = temp_dir
|
|
|
|
with patch('subprocess.run') as mock_subprocess, \
|
|
patch.object(wireviz_component, '_open_file'):
|
|
|
|
mock_subprocess.return_value.returncode = 0
|
|
mock_subprocess.return_value.stderr = ""
|
|
|
|
# Mock datetime to return specific timestamp
|
|
with patch('datetime.datetime') as mock_datetime:
|
|
mock_datetime.now.return_value.strftime.return_value = "20240515_143022"
|
|
|
|
# Pre-create the expected output directory and PNG file
|
|
expected_dir = temp_dir / "wireviz_20240515_143022"
|
|
expected_dir.mkdir(parents=True, exist_ok=True)
|
|
png_file = expected_dir / "circuit.png"
|
|
png_file.write_bytes(mock_png_image)
|
|
|
|
result = await wireviz_component.generate_from_yaml(
|
|
yaml_content=sample_yaml_content
|
|
)
|
|
|
|
assert result["success"] is True
|
|
assert "wireviz_20240515_143022" in result["paths"]["directory"]
|
|
assert expected_dir.exists()
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_generate_from_description_exception_handling(self, wireviz_component, test_context):
|
|
"""Test exception handling in generate_from_description"""
|
|
test_context.sample = AsyncMock()
|
|
test_context.sample.side_effect = Exception("Sampling error")
|
|
|
|
# Mock SamplingMessage to avoid validation issues
|
|
with patch('src.mcp_arduino_server.components.wireviz.SamplingMessage'):
|
|
result = await wireviz_component.generate_from_description(
|
|
ctx=test_context,
|
|
description="test circuit"
|
|
)
|
|
|
|
assert "error" in result
|
|
assert "Generation failed" in result["error"]
|
|
assert "Sampling error" in result["error"]
|
|
|
|
@pytest.mark.asyncio
|
|
async def test_yaml_content_persistence(self, wireviz_component, temp_dir, sample_yaml_content, mock_png_image):
|
|
"""Test that YAML content is written to file correctly"""
|
|
wireviz_component.sketches_base_dir = temp_dir
|
|
|
|
with patch('subprocess.run') as mock_subprocess, \
|
|
patch('datetime.datetime') as mock_datetime, \
|
|
patch.object(wireviz_component, '_open_file'):
|
|
|
|
mock_subprocess.return_value.returncode = 0
|
|
mock_subprocess.return_value.stderr = ""
|
|
mock_datetime.now.return_value.strftime.return_value = "20240101_120000"
|
|
|
|
# Pre-create output directory and PNG file
|
|
output_dir = temp_dir / "wireviz_20240101_120000"
|
|
output_dir.mkdir(parents=True, exist_ok=True)
|
|
png_file = output_dir / "test_circuit.png"
|
|
png_file.write_bytes(mock_png_image)
|
|
|
|
result = await wireviz_component.generate_from_yaml(
|
|
yaml_content=sample_yaml_content,
|
|
output_base="test_circuit"
|
|
)
|
|
|
|
# Verify YAML was written to file
|
|
yaml_file = output_dir / "test_circuit.yaml"
|
|
assert yaml_file.exists()
|
|
written_content = yaml_file.read_text()
|
|
assert "connectors:" in written_content
|
|
assert "Arduino:" in written_content
|
|
assert "LED:" in written_content
|
|
|
|
assert result["success"] is True |