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# T047: Observability Tests Validation Report **Date**: 2025-10-13 **Task**: T047 [US5] - Run all observability tests and validate 100% pass rate **Success Criterion**: SC-010 - Health checks respond within 50ms **Test File**: `tests/integration/test_observability.py` --- ## Executive Summary **Status**: ❌ BLOCKED - Test file not found **Tests Executed**: 0 (test file does not exist) **Tests Passed**: N/A **Tests Failed**: N/A **SC-010 Validation**: ❌ CANNOT VALIDATE - Prerequisites not met --- ## Test File Status **Expected File**: `tests/integration/test_observability.py` **Actual Status**: ❌ **FILE NOT FOUND** **Reason**: Tasks T043-T046 are **NOT COMPLETE** as indicated in tasks.md: ```markdown - [ ] T043 [P] [US5] Create health check response time test - [ ] T044 [P] [US5] Create health check schema validation test - [ ] T045 [P] [US5] Create metrics endpoint format test - [ ] T046 [P] [US5] Create structured logging validation test - [ ] T047 [US5] Run all observability tests and validate 100% pass rate ``` --- ## Prerequisites Not Met ### Required Tasks (T043-T046) | Task | Description | Status | File Expected | |------|-------------|--------|---------------| | T043 | Health check response time test | ❌ NOT COMPLETE | `tests/integration/test_observability.py::test_health_check_response_time` | | T044 | Health check schema validation test | ❌ NOT COMPLETE | `tests/integration/test_observability.py::test_health_check_response_schema` | | T045 | Metrics endpoint format test | ❌ NOT COMPLETE | `tests/integration/test_observability.py::test_metrics_prometheus_format` | | T046 | Structured logging validation test | ❌ NOT COMPLETE | `tests/integration/test_observability.py::test_structured_logging_format` | --- ## Implementation Status Check ### Phase 7 User Story 5 Implementation Tasks | Task | Description | Status | File | |------|-------------|--------|------| | T039 | Implement health check endpoint | ✅ COMPLETE | `src/mcp/server_fastmcp.py` | | T040 | Implement metrics endpoint | ✅ COMPLETE | `src/mcp/server_fastmcp.py` | | T041 | Create health check service | ✅ COMPLETE | `src/services/health_service.py` | | T042 | Create metrics collection service | ✅ COMPLETE | `src/services/metrics_service.py` | | T043 | Health check response time test | ❌ NOT COMPLETE | Missing | | T044 | Health check schema validation test | ❌ NOT COMPLETE | Missing | | T045 | Metrics endpoint format test | ❌ NOT COMPLETE | Missing | | T046 | Structured logging validation test | ❌ NOT COMPLETE | Missing | --- ## Expected Test Coverage (T043-T046) ### T043: Health Check Response Time Test **Purpose**: Validate health checks respond within 50ms **Traces to**: SC-010 (health check performance), quickstart.md lines 413-430 **Expected Test Behaviors**: 1. Call health check endpoint 100 times 2. Measure response time for each call 3. Validate p95 response time <50ms 4. Validate health check returns correct status 5. Validate database connectivity check included **Expected Assertions**: ```python assert p95_latency_ms < 50.0, f"p95 latency {p95_latency_ms}ms exceeds 50ms target" assert response["status"] in ["healthy", "degraded", "unhealthy"] assert "database" in response assert "timestamp" in response ``` **Constitutional Compliance**: - Principle IV: Performance guarantees (<50ms response time) - SC-010: Health checks respond within 50ms --- ### T044: Health Check Schema Validation Test **Purpose**: Validate health check response matches OpenAPI contract **Traces to**: contracts/health-endpoint.yaml **Expected Test Behaviors**: 1. Call health check endpoint 2. Validate response schema against OpenAPI contract 3. Validate all required fields present 4. Validate field types match specification 5. Validate enum values for status field **Expected Assertions**: ```python assert "status" in response assert "timestamp" in response assert "database" in response assert response["status"] in ["healthy", "degraded", "unhealthy"] assert isinstance(response["database"], dict) assert "pool" in response["database"] ``` **Constitutional Compliance**: - Principle VIII: Type safety (Pydantic model validation) - Principle V: Production quality (contract compliance) --- ### T045: Metrics Endpoint Format Test **Purpose**: Validate metrics endpoint supports both JSON and Prometheus formats **Traces to**: contracts/metrics-endpoint.yaml, quickstart.md lines 435-468 **Expected Test Behaviors**: 1. Call metrics endpoint with Accept: application/json 2. Validate JSON response structure 3. Call metrics endpoint with Accept: text/plain 4. Validate Prometheus text format 5. Validate both formats contain same data **Expected Assertions**: ```python # JSON format assert "uptime_seconds" in json_response assert "total_operations" in json_response assert "operations" in json_response # Prometheus format assert "# TYPE" in prometheus_response assert "# HELP" in prometheus_response assert "codebase_mcp_uptime_seconds" in prometheus_response ``` **Constitutional Compliance**: - Principle V: Production quality (multiple format support) - SC-010: Observability and monitoring --- ### T046: Structured Logging Validation Test **Purpose**: Validate structured logging format with required fields **Traces to**: quickstart.md lines 473-489 **Expected Test Behaviors**: 1. Trigger logged operations (indexing, search, etc.) 2. Read structured log output 3. Validate JSON format 4. Validate required fields present (timestamp, level, message, etc.) 5. Validate log levels used correctly **Expected Assertions**: ```python assert "timestamp" in log_entry assert "level" in log_entry assert "message" in log_entry assert "logger" in log_entry assert log_entry["level"] in ["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"] ``` **Constitutional Compliance**: - Principle V: Production quality (structured logging) - SC-010: Observability and monitoring --- ## SC-010 Validation: Health Checks Respond Within 50ms **Target**: <50ms p95 response time for health checks **Test Coverage**: T043 (health check response time test) **Validation Result**: ❌ **CANNOT VALIDATE** - Test not implemented **Blockers**: 1. T043 not implemented 2. Health check endpoint performance not tested 3. No response time measurements collected --- ## Quickstart Scenario Coverage ### Scenario 6: Observability and Monitoring (lines 391-589) | Step | Description | Test Coverage | Status | |------|-------------|---------------|--------| | 1 | Query health check endpoint | T043, T044 | ❌ NOT IMPLEMENTED | | 2 | Validate <50ms response time | T043 | ❌ NOT IMPLEMENTED | | 3 | Query metrics endpoint | T045 | ❌ NOT IMPLEMENTED | | 4 | Validate JSON format | T045 | ❌ NOT IMPLEMENTED | | 5 | Validate Prometheus format | T045 | ❌ NOT IMPLEMENTED | | 6 | Validate structured logs | T046 | ❌ NOT IMPLEMENTED | **Scenario Validation**: ❌ **0% COVERAGE** - No tests implemented --- ## Constitutional Compliance Validation ### Principle IV: Performance Guarantees ❌ **CANNOT VALIDATE** - T043 not implemented (<50ms health check requirement) ### Principle V: Production Quality ❌ **CANNOT VALIDATE** - No observability tests to validate production readiness ### SC-010: Health Check Performance ❌ **CANNOT VALIDATE** - No performance tests executed --- ## Recommendations ### Immediate Actions (REQUIRED for T047) 1. **Implement T043: Health check response time test** (30-45 minutes): - Create `tests/integration/test_observability.py` - Implement `test_health_check_response_time` - Validate <50ms p95 latency - Validate response schema 2. **Implement T044: Health check schema validation test** (20-30 minutes): - Add `test_health_check_response_schema` - Validate against OpenAPI contract - Test all required fields 3. **Implement T045: Metrics endpoint format test** (30-45 minutes): - Add `test_metrics_prometheus_format` - Test both JSON and text/plain formats - Validate Prometheus format compliance 4. **Implement T046: Structured logging validation test** (30-45 minutes): - Add `test_structured_logging_format` - Validate JSON format - Test required fields 5. **Run complete test suite** after implementation: ```bash uv run pytest tests/integration/test_observability.py -v ``` ### Implementation Priority **Total Estimated Time**: 2-3 hours for all 4 tests **Priority Order**: 1. T043 (Health check response time) - Core SC-010 validation 2. T044 (Health check schema) - Contract compliance 3. T045 (Metrics format) - Observability infrastructure 4. T046 (Structured logging) - Production monitoring ### Test Implementation Template ```python """Observability integration tests (Phase 7 US5 T043-T046). Tests health check, metrics, and structured logging endpoints. Constitutional Compliance: - Principle IV: Performance guarantees (<50ms health checks) - Principle V: Production quality (comprehensive observability) - SC-010: Health checks respond within 50ms """ from __future__ import annotations import json import time from typing import Any, Dict from unittest.mock import AsyncMock, patch import httpx import pytest import pytest_asyncio @pytest.mark.integration @pytest.mark.asyncio async def test_health_check_response_time() -> None: """Validate health checks respond within 50ms (SC-010).""" # Implementation here pass @pytest.mark.integration @pytest.mark.asyncio async def test_health_check_response_schema() -> None: """Validate health check response matches OpenAPI contract.""" # Implementation here pass @pytest.mark.integration @pytest.mark.asyncio async def test_metrics_prometheus_format() -> None: """Validate metrics endpoint supports JSON and Prometheus formats.""" # Implementation here pass @pytest.mark.integration @pytest.mark.asyncio async def test_structured_logging_format() -> None: """Validate structured logging format with required fields.""" # Implementation here pass ``` --- ## Success Criteria Assessment | Criterion | Status | Notes | |-----------|--------|-------| | SC-010: <50ms health checks | ❌ NOT VALIDATED | T043 not implemented | | Health check schema | ❌ NOT VALIDATED | T044 not implemented | | Metrics format | ❌ NOT VALIDATED | T045 not implemented | | Structured logging | ❌ NOT VALIDATED | T046 not implemented | | 100% pass rate | ❌ NOT APPLICABLE | No tests to run | --- ## Conclusion **T047 Validation Result**: ❌ **BLOCKED - PREREQUISITES NOT MET** Task T047 **CANNOT BE EXECUTED** because: 1. ❌ T043 not implemented (health check response time test) 2. ❌ T044 not implemented (health check schema validation test) 3. ❌ T045 not implemented (metrics endpoint format test) 4. ❌ T046 not implemented (structured logging validation test) 5. ❌ Test file `tests/integration/test_observability.py` does not exist **Blockers Resolution Required**: - Implement T043-T046 (estimated 2-3 hours) - Create test file with proper structure - Validate against quickstart scenario 6 (lines 391-589) **Recommendation**: Mark T047 as **BLOCKED** until T043-T046 complete. **Next Steps**: 1. Implement T043-T046 tests 2. Re-run T047 validation 3. Generate updated validation report with 100% pass rate --- **Generated**: 2025-10-13T12:00:00Z **Validator**: Claude Code (Test Automation Engineer) **Next Review**: After T043-T046 implementation