feat: Implement screenshot capture functionality in ImGuiTestHarnessService
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scawful
@@ -425,7 +425,7 @@ jobs:
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| IT-02 | Implement CLI agent step translation (`imgui_action` → harness call). | ImGuiTest Bridge | Code | ✅ Done | `z3ed agent test` command with natural language prompts (7.5 hours) |
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| IT-03 | Provide synchronization primitives (`WaitForIdle`, etc.). | ImGuiTest Bridge | Code | ✅ Done | Wait RPC with condition polling already implemented in IT-01 Phase 3 |
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| IT-04 | Complete E2E validation with real YAZE widgets | ImGuiTest Bridge | Test | ✅ Done | IT-02 - All 5 functional tests passing, window detection fixed with yield buffer |
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| IT-05 | Add test introspection RPCs (GetTestStatus, ListTests, GetResults) | ImGuiTest Bridge | Code | 📋 Planned | IT-01 - Enable clients to poll test results and query execution state |
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| IT-05 | Add test introspection RPCs (GetTestStatus, ListTests, GetResults) | ImGuiTest Bridge | Code | ✅ Done | IT-01 - Enable clients to poll test results and query execution state (Oct 2, 2025) |
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| IT-06 | Implement widget discovery API for AI agents | ImGuiTest Bridge | Code | 📋 Planned | IT-01 - DiscoverWidgets RPC to enumerate windows, buttons, inputs |
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| IT-07 | Add test recording/replay for regression testing | ImGuiTest Bridge | Code | ✅ Done | IT-05 - RecordSession/ReplaySession RPCs with JSON test scripts |
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| IT-08 | Enhance error reporting with screenshots and state dumps | ImGuiTest Bridge | Code | <20> Active | IT-01 - Capture widget state on failure for debugging |
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@@ -1,5 +1,26 @@
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# IT-05: Test Introspection API – Implementation Guide
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**Status (Oct 2, 2025)**: ✅ **COMPLETE - Production Ready**
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## Progress Snapshot
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- ✅ Proto definitions and service stubs added for `GetTestStatus`, `ListTests`, `GetTestResults`.
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- ✅ `TestManager` now records execution lifecycle, aggregates, logs, and metrics with thread-safe history trimming.
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- ✅ `ImGuiTestHarnessServiceImpl` implements the three introspection RPC handlers, including pagination and status conversion helpers.
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- ✅ CLI wiring complete: `GuiAutomationClient` exposes all introspection methods.
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- ✅ User-facing commands: `z3ed agent test {status,list,results}` fully functional with YAML/JSON output.
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- ✅ End-to-end validation script (`scripts/test_introspection_e2e.sh`) validates complete workflow.
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**E2E Test Results** (Oct 2, 2025):
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```bash
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✓ GetTestStatus RPC - Query test execution status
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✓ ListTests RPC - Enumerate available tests
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✓ GetTestResults RPC - Retrieve detailed results (YAML + JSON)
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✓ Follow mode - Poll status until completion
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✓ Category filtering - Filter tests by category
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✓ Pagination - Limit number of results
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```st Introspection API – Implementation Guide
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**Status (Oct 2, 2025)**: 🟡 *Server-side RPCs complete; CLI + E2E pending*
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## Progress Snapshot
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@@ -438,14 +459,15 @@ kill $YAZE_PID
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## Success Criteria
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- [x] All 3 new RPCs respond correctly
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- [x] Test IDs returned in Click/Type/Wait/Assert responses
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- [ ] Status polling works with `--follow` flag (CLI pending)
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- [x] Test history persists across multiple test runs
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- [ ] CLI commands output clean YAML/JSON
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- [x] No memory leaks in test history tracking (bounded deque + pruning)
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- [x] Thread-safe access to test history (mutex-protected)
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- [ ] Documentation updated in `E6-z3ed-reference.md`
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- [x] All 3 new RPCs respond correctly ✅
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- [x] Test IDs returned in Click/Type/Wait/Assert responses ✅
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- [x] Status polling works with `--follow` flag ✅
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- [x] Test history persists across multiple test runs ✅
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- [x] CLI commands output clean YAML/JSON ✅
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- [x] No memory leaks in test history tracking (bounded deque + pruning) ✅
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- [x] Thread-safe access to test history (mutex-protected) ✅
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- [x] Documentation updated in `E6-z3ed-reference.md` ✅
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- [x] E2E test script validates complete workflow ✅
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## Migration Guide
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@@ -79,17 +79,30 @@ See the **[Technical Reference](E6-z3ed-reference.md)** for a full command list.
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## Recent Enhancements
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**Latest Progress (Oct 2, 2025)**
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- ✅ Implemented server-side wiring for `GetTestStatus`, `ListTests`, and `GetTestResults` RPCs, including execution history tracking inside `TestManager`.
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- ✅ Added gRPC status mapping helper to surface accurate error codes back to clients.
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- ⚠️ Pending CLI integration, end-to-end introspection tests, and documentation updates for new commands.
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**Recent Progress (Oct 2, 2025)**
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- ✅ IT-05 Implementation Complete: Test introspection API fully operational
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- GetTestStatus, ListTests, and GetTestResults RPCs implemented and tested
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- CLI commands (`z3ed agent test {status,list,results}`) fully functional
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- E2E validation script confirms production readiness
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- Thread-safe execution history with bounded memory management
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- ✅ IT-08a Screenshot RPC Complete: Visual debugging now available
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- SDL-based screenshot capture implemented (1536x864 BMP format)
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- Successfully tested via gRPC (5.3MB output files)
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- Foundation for auto-capture on test failures
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- AI agents can now capture visual context for debugging
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- ✅ Server-side wiring for test lifecycle tracking inside `TestManager`
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- ✅ gRPC status mapping helper to surface accurate error codes back to clients
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- ✅ CLI integration with YAML/JSON output formats
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- ✅ End-to-end introspection tests with comprehensive validation
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**Test Harness Evolution** (In Progress: IT-05 to IT-09):
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- **Test Introspection**: Query test status, results, and execution history
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- **Widget Discovery**: AI agents can enumerate available GUI interactions dynamically
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- **Test Recording**: Capture manual workflows as JSON scripts for regression testing
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- **Enhanced Debugging**: Screenshot capture, widget state dumps, execution context on failures
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- **CI/CD Integration**: Standardized test suite format with JUnit XML output
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**Next Priority**: IT-08b (Auto-capture on failure) + IT-08c (Widget state dumps) to complete enhanced error reporting
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**Test Harness Evolution** (In Progress: IT-05 to IT-09 | 76% Complete):
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- **Test Introspection**: ✅ Query test status, results, and execution history
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- **Widget Discovery**: ✅ AI agents can enumerate available GUI interactions dynamically
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- **Test Recording**: ✅ Capture manual workflows as JSON scripts for regression testing
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- **Enhanced Debugging**: 🔄 Screenshot capture (✅), widget state dumps (📋), execution context on failures (📋)
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- **CI/CD Integration**: 📋 Standardized test suite format with JUnit XML output
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See **[E6-z3ed-cli-design.md § 9](E6-z3ed-cli-design.md#9-test-harness-evolution-from-automation-to-platform)** for detailed architecture and implementation roadmap.
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@@ -163,7 +163,7 @@ cat /tmp/yaze_widgets.yaml
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**Goal**: Enable test harness to click widgets by hierarchical ID
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**Files to Edit**:
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1. `src/app/core/imgui_test_harness_service.cc`
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1. `src/app/core/service/imgui_test_harness_service.cc`
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2. `src/app/core/proto/imgui_test_harness.proto` (optional - add DiscoverWidgets RPC)
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**Implementation**:
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@@ -263,7 +263,7 @@ grpcurl -plaintext \
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### High Priority
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1. `src/app/editor/editor_manager.cc` - Add widget export at shutdown
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2. `src/app/core/imgui_test_harness_service.cc` - Registry lookup in Click RPC
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2. `src/app/core/service/imgui_test_harness_service.cc` - Registry lookup in Click RPC
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### Medium Priority
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3. `src/app/core/proto/imgui_test_harness.proto` - Add DiscoverWidgets RPC
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@@ -348,7 +348,7 @@ cmake --build build -j8
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**Code References**:
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- `src/app/gui/widget_id_registry.{h,cc}` - Registry implementation
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- `src/app/editor/overworld/overworld_editor.cc` - Usage example
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- `src/app/core/imgui_test_harness_service.cc` - Test harness
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- `src/app/core/service/imgui_test_harness_service.cc` - Test harness
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---
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