mcp-browser/tests/test_claude_connection.py

206 lines
7.2 KiB
Python

#!/usr/bin/env python3
"""
Test MCP Browser connection to claude-code.
This script tests if MCP Browser can successfully connect to claude-code
as an MCP target and perform basic operations like reading a file.
Working Directory:
This script should be run from the mcp-browser directory:
$ cd /path/to/mcp-browser
$ python test_claude_connection.py
Requirements:
- Claude Code must be installed and available in PATH or at a configured location
- Write permissions to create temporary test files
"""
import asyncio
import sys
import os
from pathlib import Path
import yaml
import tempfile
import shutil
# Add parent directory to path for development
sys.path.insert(0, str(Path(__file__).parent))
from mcp_browser import MCPBrowser
import pytest
@pytest.mark.asyncio
async def test_claude_connection():
"""Test connection to claude-code via MCP."""
print("=== Testing MCP Browser Connection to Claude Code ===\n")
print(f"Working directory: {os.getcwd()}")
print(f"Script location: {Path(__file__).resolve()}\n")
# Try to find claude binary in multiple locations
claude_path = None
# Check common locations and PATH
possible_paths = [
shutil.which("claude"), # Check PATH first
"/usr/local/bin/claude",
"/usr/bin/claude",
os.path.expanduser("~/.local/bin/claude"),
os.path.expanduser("~/bin/claude"),
]
# Also check CLAUDE_PATH environment variable
if "CLAUDE_PATH" in os.environ:
possible_paths.insert(0, os.environ["CLAUDE_PATH"])
for path in possible_paths:
if path and os.path.exists(path):
claude_path = path
break
if not claude_path:
print("❌ Claude binary not found")
print("\nTried the following locations:")
for path in possible_paths:
if path:
print(f" - {path}")
print("\nPlease ensure Claude Code is installed and either:")
print(" 1. Available in your PATH")
print(" 2. Set CLAUDE_PATH environment variable")
print(" 3. Installed in a standard location")
return
print(f"✓ Found Claude binary at {claude_path}\n")
# Create a temporary config file for claude
with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
config = {
"servers": {
"claude-code": {
"command": [claude_path, "mcp", "serve"],
"name": "claude-code",
"description": "Claude Code MCP interface"
}
},
"default_server": "claude-code",
"sparse_mode": True,
"enable_builtin_servers": False # Disable built-in servers for this test
}
yaml.dump(config, f)
config_path = f.name
print("Creating MCP Browser with claude-code as target...")
# Create browser with custom config
browser = MCPBrowser(
config_path=Path(config_path),
server_name="claude-code"
)
try:
# Initialize connection
print("Initializing MCP connection...")
await browser.initialize()
print("✓ Connected to claude-code via MCP\n")
# Test 1: List available tools in sparse mode
print("1. Testing sparse mode tools:")
response = await browser.call({
"jsonrpc": "2.0",
"id": "test-1",
"method": "tools/list"
})
if "result" in response:
tools = response["result"]["tools"]
print(f" Sparse tools available: {len(tools)}")
for tool in tools[:5]: # Show first 5
print(f" - {tool['name']}: {tool['description'][:60]}...")
# Test 2: Discover all tools
print("\n2. Discovering all available tools:")
all_tools = browser.discover("$.tools[*].name")
if all_tools:
print(f" Total tools discovered: {len(all_tools)}")
# Show a sample of tools
sample = all_tools[:10] if len(all_tools) > 10 else all_tools
print(f" Sample tools: {sample}")
# Test 3: Try to read a file using claude's Read tool
print("\n3. Testing file read capability:")
# Create test file in temp directory with more descriptive name
test_dir = tempfile.gettempdir()
test_file = os.path.join(test_dir, f"mcp_browser_test_{os.getpid()}.txt")
print(f" Test directory: {test_dir}")
# First create a test file
with open(test_file, 'w') as f:
f.write("Hello from MCP Browser!\nThis file was created to test claude-code integration.")
print(f" Created test file: {test_file}")
# Use mcp_call to invoke Read tool if available
if all_tools and any('Read' in tool or 'read' in tool.lower() for tool in all_tools):
response = await browser.call({
"jsonrpc": "2.0",
"id": "test-3",
"method": "tools/call",
"params": {
"name": "mcp_call",
"arguments": {
"method": "tools/call",
"params": {
"name": "Read", # Claude's Read tool
"arguments": {
"file_path": test_file
}
}
}
}
})
if "result" in response:
print(" ✓ Successfully read file via claude-code!")
content = response["result"]["content"][0]["text"]
print(f" File content preview: {content[:100]}...")
else:
print(" ❌ Failed to read file:", response.get("error", "Unknown error"))
else:
print(" ⚠ Read tool not found in available tools")
# Clean up test file
if os.path.exists(test_file):
os.remove(test_file)
print("\n✅ Connection test completed!")
print("\nMCP Browser successfully:")
print("- Connected to claude-code as an MCP server")
print("- Listed available tools in sparse mode")
print("- Discovered all available tools via JSONPath")
except Exception as e:
print(f"\n❌ Error during testing: {e}")
import traceback
traceback.print_exc()
finally:
print("\nClosing connection...")
await browser.close()
print("✓ Connection closed")
# Clean up config file
if os.path.exists(config_path):
os.remove(config_path)
if __name__ == "__main__":
print("\nMCP Browser - Claude Code Connection Test")
print("==========================================")
print("\nThis test verifies that MCP Browser (acting as an MCP client)")
print("can connect to Claude Code (acting as an MCP server).")
print("\nThe test will:")
print(" 1. Search for claude binary in PATH and common locations")
print(" 2. Start claude in MCP server mode")
print(" 3. Test communication using MCP protocol\n")
asyncio.run(test_claude_connection())