IBKR TWS MCP Server

# Unit Test Verification Report **Date:** October 20, 2025 **Test Suite:** `tests/unit/test_server_tools.py` **Status:** ✅ COMPLETE - All 21 tests passing ## Summary The unit test suite comprehensively covers all resource-based streaming functionality after the migration from long-polling to MCP Resources pattern. ### Test Execution Results ``` Total Tests: 21 Passed: 21 (100%) Failed: 0 Warnings: 1 (non-critical AsyncMock warning) Execution Time: 0.61s ``` ## Coverage Analysis ### 1. Connection Management (3 tests) ✅ - `test_ibkr_connect_tool` - Tests TWS connection establishment - `test_ibkr_disconnect_tool` - Tests graceful disconnection - `test_ibkr_get_status_tool` - Tests connection status checking ### 2. Account & Position Management (2 tests) ✅ - `test_ibkr_get_positions_tool` - Tests retrieving current positions - `test_ibkr_get_account_summary_tool` - Tests account summary data ### 3. Market Data Resources (3 tests) ✅ **Resource URI:** `ibkr://market-data/{resource_id}` - `test_ibkr_start_market_data_resource` - Tests basic stock streaming - Validates subscription status - Checks resource URI format: `ibkr://market-data/AAPL` - Verifies contract details returned - `test_ibkr_start_market_data_resource_forex` - **NEW** Tests forex differentiation - Validates composite resource ID: `ibkr://market-data/USD.JPY` - Tests currency parameter handling - Ensures forex pairs are uniquely identified - `test_ibkr_stop_market_data_resource` - Tests cleanup - Verifies subscription removal - Checks background task cancellation - Validates cache cleanup ### 4. Portfolio Resources (2 tests) ✅ **Resource URI:** `ibkr://portfolio/{account}` - `test_ibkr_start_portfolio_resource` - Tests portfolio streaming - Validates account-based subscription - Checks resource URI format: `ibkr://portfolio/U123456` - Verifies account parameter handling - `test_ibkr_stop_portfolio_resource` - Tests cleanup - Verifies subscription removal - Checks background task cancellation - Validates cache cleanup ### 5. News Bulletins Resources (3 tests) ✅ **Resource URI:** `ibkr://news-bulletins` (static resource) - `test_ibkr_get_news_bulletins_resource` - **NEW** Tests resource reading - Tests unsubscribed state (returns error) - Tests subscribed state (returns bulletins) - Validates bulletin count and timestamp - Verifies bulletin data structure - `test_ibkr_start_news_resource` - Tests news subscription - Validates subscription status - Checks resource URI: `ibkr://news-bulletins` - Tests allMessages parameter - `test_ibkr_stop_news_resource` - Tests cleanup - Verifies subscription removal - Checks background task cancellation - Validates global state cleanup ### 6. Resource Stream Listing (1 test) ✅ - `test_ibkr_list_active_resource_streams` - **COMPREHENSIVE** Tests all resources - **Market Data Section:** - Validates count and stream details - Checks resource_id format - Verifies contract and timing info - **Portfolio Section:** - Validates account-based streams - Checks position and value data - Verifies timing information - **News Section:** - Validates static resource presence - Checks bulletin count - Verifies resource URI: `ibkr://news-bulletins` ### 7. PnL Management (2 tests) ✅ - `test_ibkr_get_pnl_tool` - Tests overall portfolio PnL - `test_ibkr_get_pnl_single_tool` - Tests position-specific PnL ### 8. Order Management (5 tests) ✅ - `test_ibkr_place_order_tool` - Tests order placement - `test_ibkr_cancel_order_tool` - Tests order cancellation - `test_ibkr_get_open_orders_tool` - Tests retrieving open orders - `test_ibkr_get_executions_tool` - Tests execution history - `test_ibkr_get_news_providers_tool` - Tests news provider listing ## Resource Implementation Status ### Implemented Resources 1. ✅ **Market Data Resource** - `ibkr://market-data/{resource_id}` - Template resource with variable `{resource_id}` - Supports stocks: `AAPL`, `MSFT` - Supports forex with composite IDs: `USD.JPY`, `EUR.USD` - Background streaming with `send_resource_updated()` 2. ✅ **Portfolio Resource** - `ibkr://portfolio/{account}` - Template resource with variable `{account}` - Account-based subscriptions: `U123456`, `DU1234567` - Streams positions and account values - Background streaming with `send_resource_updated()` 3. ✅ **News Bulletins Resource** - `ibkr://news-bulletins` - Static resource (no URI variables) - Single subscription for all bulletins - Background streaming with `send_resource_updated()` ### Removed Legacy Code - ❌ Deleted: `ibkr_start_market_data_stream` (long-polling) - ❌ Deleted: `ibkr_get_market_data_updates` (long-polling) - ❌ Deleted: `ibkr_stop_market_data_stream` (long-polling) - ❌ Deleted: `ibkr_start_account_updates_stream` (long-polling) - ❌ Deleted: `ibkr_get_account_updates` (long-polling) - ❌ Deleted: `ibkr_stop_account_updates_stream` (long-polling) - ❌ Deleted: `ibkr_start_news_bulletins_stream` (long-polling) - ❌ Deleted: `ibkr_get_news_bulletins` (long-polling) - ❌ Deleted: `ibkr_stop_news_bulletins_stream` (long-polling) - ❌ Deleted: Global polling infrastructure (_active_subscriptions, _subscription_buffers, etc.) ## Test Quality Metrics ### Mock Strategy - ✅ Comprehensive AsyncMock for TWS client - ✅ Proper async generator mocking for streaming - ✅ Session.send_resource_updated() mocking - ✅ Realistic test data (market data, positions, bulletins) ### Test Isolation - ✅ Cleanup of global state between tests - ✅ Task cancellation in cleanup - ✅ Cache clearing in tests - ✅ Independent test execution ### Edge Cases Covered - ✅ Unsubscribed state handling (news bulletins) - ✅ Forex currency differentiation (USD.JPY vs USD.SGD) - ✅ Task cancellation during cleanup - ✅ Empty vs populated cache states ## Key Test Additions (Recent) ### 1. Forex Differentiation Test ```python test_ibkr_start_market_data_resource_forex() ``` - Validates composite resource ID format - Tests: `symbol="USD", secType="CASH", currency="JPY"` - Expects: `ibkr://market-data/USD.JPY` ### 2. News Bulletins Resource Reading Test ```python test_ibkr_get_news_bulletins_resource() ``` - Tests reading static resource - Validates subscribed/unsubscribed states - Checks bulletin count and data structure ### 3. Comprehensive Stream Listing Test ```python test_ibkr_list_active_resource_streams() ``` - Tests all three resource types in one test - Validates market_data, portfolio, and news sections - Checks resource URIs and data structure ## Known Issues ### Non-Critical Warning ``` RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited ``` - Location: `test_ibkr_disconnect_tool` - Impact: None - test passes successfully - Cause: AsyncMock not awaited in one code path - Status: Not blocking functionality ## Conclusion ✅ **Unit tests are COMPLETE and COMPREHENSIVE** The test suite successfully covers: - All three MCP Resources (market-data, portfolio, news-bulletins) - Resource subscription lifecycle (start, read, stop) - Forex pair differentiation - Resource discovery and listing - All legacy tool migrations - Cleanup and state management **All 21 tests passing with 100% success rate.** ## Next Steps For production readiness: 1. ⏳ Investigate resource discovery issue (news-bulletins not in `/resources/templates/list`) 2. ⏳ Add integration tests for actual MCP protocol communication 3. ⏳ Test end-to-end streaming with real TWS connection 4. ⏳ Document resource discovery pattern for users