Brummer MCP Server

# Task: Pre-Development TUI Baseline Testing ## Persona: Test Engineer Role: Baseline Tester Expertise: System validation, regression testing, Go testing frameworks ## Current State Assessment **Before starting this task:** ```yaml existing_state: - ✅ Research analysis completed with specific recommendations - ✅ Synchronized architecture design completed - ✅ TUI Model identified with 60+ value receiver methods - ✅ Static analysis shows Model copy warnings from go vet - ❌ Baseline test results not captured before critical changes - ❌ TUI functionality test coverage not measured - ❌ Performance baseline not established - ❓ Unknown: Current memory usage and goroutine count during TUI operations current_files: - internal/tui/model.go: Has value receiver race conditions (60+ methods) - internal/tui/model_test.go: Basic tests, may have copy issues - cmd/brum/main.go: TUI initialization code - internal/tui/: All TUI component files that use Model ``` ## File Scope Definition **Explicit file list for this task:** ```yaml # Focus on TUI area that will be modified test_scope: - internal/tui/**/*.go # All TUI files - cmd/brum/main.go # TUI initialization baseline_files: - internal/tui/model.go # Primary change target - internal/tui/mcp_connections.go # Model usage - internal/tui/script_selector.go # Model usage - internal/tui/model_test.go # Existing tests run_tests: - go test -v ./internal/tui/... - go test -race -v ./internal/tui/... - go vet ./internal/tui/... - golangci-lint run ./internal/tui/... create_files: - requests/race-condition-fixes/baselines/tui-baseline-report.md - requests/race-condition-fixes/baselines/tui-performance-baseline.txt - requests/race-condition-fixes/baselines/tui-race-detector-baseline.txt # Total: ~20 files (TUI package + baselines) ``` ## Purpose Establish comprehensive baseline before TUI Model critical changes to ensure: - **Existing functionality** works correctly - **No pre-existing failures** that could be blamed on new code - **Clear before/after comparison** possible - **Performance impact** can be accurately measured - **Race condition status** is documented ## Task Requirements - **Objective**: Create comprehensive TUI baseline before critical pointer receiver changes - **Risk Level**: LOW (Testing only, no code changes) - **Dependencies**: 02-design-sync-architecture (completed) - **Deliverables**: - Complete baseline test report - Performance metrics baseline - Race detector baseline results - Current TUI functionality status ## Success Criteria Checklist - [ ] Run all TUI unit tests and document results - [ ] Execute race detector tests on TUI package - [ ] Capture performance baseline for TUI operations - [ ] Document current Model value receiver warnings (go vet) - [ ] Test TUI functionality manually if needed - [ ] Record current memory usage during TUI operations - [ ] Document any existing failures or issues - [ ] Establish test coverage baseline for TUI package ## Baseline Validation ```bash # Run all unit tests for TUI area go test -v ./internal/tui/ # Expected: Document pass/fail status and any existing issues # Run race detector tests go test -race -v ./internal/tui/ # Expected: Document race conditions found # Static analysis for TUI go vet ./internal/tui/ # Expected: Document 60+ Model copy warnings # Linting check golangci-lint run ./internal/tui/ # Expected: Document existing lint issues # Test coverage baseline go test -cover ./internal/tui/ # Record: Current coverage percentage # Performance baseline go test -bench=. -benchmem ./internal/tui/ # Record: Current benchmark results if any exist # Memory usage check during tests go test -memprofile=tui-mem.prof ./internal/tui/ # Record: Memory allocation patterns ``` ## Baseline Report Structure ### Test Results Baseline - Unit test pass/fail status - Existing test failures (if any) - Test coverage percentage - Test execution time ### Race Detector Baseline - Race conditions detected in current code - Specific files and line numbers - Types of races (data races, map races, etc.) - Severity assessment ### Performance Baseline - Benchmark results (if benchmarks exist) - Memory allocation patterns - Goroutine count during operations - CPU usage patterns ### Static Analysis Baseline - go vet warnings (especially Model copy warnings) - golangci-lint issues - Cyclomatic complexity metrics - Code quality indicators ## Risk Mitigation - **No Code Changes**: This task only observes and documents current state - **Comprehensive Documentation**: All findings documented for comparison - **Issue Categorization**: Separate pre-existing issues from future changes ## Success Validation ```bash # Verify baseline documents created ls -la requests/race-condition-fixes/baselines/ # Expected: 3 baseline documents # Check baseline completeness wc -l requests/race-condition-fixes/baselines/*.{md,txt} # Expected: Substantial documentation of current state # Verify no code changes made git diff --name-only # Expected: Only baseline documents added, no source code changes ``` ## Go/No-Go Decision Criteria ### PROCEED Conditions: - [ ] All baseline tests documented (pass or fail) - [ ] Race detector results captured - [ ] Performance baseline established - [ ] Current issues clearly identified and categorized - [ ] No unexpected critical failures that would block development ### STOP Conditions (Fix existing issues first): - [ ] Critical TUI functionality completely broken - [ ] Build failures in TUI package - [ ] Unresolvable dependency conflicts ## Expected Baseline Findings Based on previous analysis, expecting to document: ### Race Detector Results - **Model copy warnings**: 60+ instances from go vet - **Concurrent access**: Potential races in Model field access - **Channel operations**: Race conditions in updateChan usage - **Goroutine spawning**: Races from Init() and Update() methods ### Test Coverage Areas - **Existing tests**: Basic Model functionality - **Missing coverage**: Concurrent operations testing - **Performance tests**: Likely minimal or none - **Integration tests**: TUI component interactions ### Performance Characteristics - **Memory allocation**: High allocation due to Model copying - **Goroutine usage**: Potential goroutine leaks from value receivers - **Lock contention**: Minimal due to lack of proper synchronization - **Event processing**: Inefficient due to copying overhead ## Context from PRD This baseline establishes the "before" state for the most critical fix in the entire project. The TUI Model pointer receiver conversion affects 60+ methods and is the foundation for all other race condition fixes. ## Constraints - **Time**: 1 hour maximum (testing and documentation only) - **No Changes**: Absolutely no code modifications - **Comprehensive**: Must capture complete current state - **Accurate**: Baseline must be precise for later comparison ## Execution Checklist - [ ] Set up clean test environment - [ ] Run comprehensive TUI test suite - [ ] Execute race detector on TUI package - [ ] Capture performance baseline measurements - [ ] Document all static analysis warnings - [ ] Test basic TUI functionality manually - [ ] Record current resource usage patterns - [ ] Create comprehensive baseline report - [ ] Categorize existing issues vs. future fixes - [ ] Make Go/No-Go decision for proceeding with TUI Model fixes ## Success Indicators - **Comprehensive Baseline**: All aspects of current TUI system documented - **Clear Categorization**: Existing issues vs. race condition fixes clearly separated - **Measurable Metrics**: Quantitative baseline for later comparison - **Go Decision**: Clear recommendation to proceed with TUI Model pointer conversion - **Foundation Set**: Solid baseline for measuring success of critical fixes