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FAILING_TESTS_PROMPT.md

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+# KMS API - Failing Tests Analysis & Resolution Prompt
+
+## Context
+I have a Go-based Key Management Service (KMS) API with comprehensive end-to-end tests. The server is running successfully on port 8081, but several tests are failing due to database connectivity issues and some implementation gaps. I need help resolving these failing tests.
+
+## Current Test Results
+**Total Tests**: 22  
+**Passing**: 17  
+**Failing**: 6  
+
+## Failing Tests Analysis
+
+### 1. Database Connectivity Issues (Primary Problem)
+```
+[FAIL] Readiness Check (Expected: 200, Got: 503)
+Response: {"status":"not ready","timestamp":"2025-08-22T17:17:03Z","checks":{"database":"unhealthy: sql: database is closed"}}
+
+[FAIL] List applications with auth (Expected: 200, Got: 500)
+Response: {"error":"Internal Server Error","message":"Failed to list applications"}
+
+[FAIL] List applications with pagination (Expected: 200, Got: 500)
+Response: {"error":"Internal Server Error","message":"Failed to list applications"}
+
+[FAIL] Create application (Expected: 201, Got: 500)
+Response: {"error":"Internal Server Error","message":"Failed to create application"}
+
+[FAIL] Missing content-type (Expected: 400, Got: 500)
+Response: {"error":"Internal Server Error","message":"Failed to create application"}
+```
+
+**Root Cause**: The server logs show `"sql: database is closed"` errors. The PostgreSQL database is not running or not properly connected.
+
+### 2. Edge Case Handling
+```
+[FAIL] Delete non-existent token (Expected: 500, Got: 204)
+```
+**Issue**: The delete token endpoint returns 204 (success) even for non-existent tokens, but the test expects 500 (error).
+
+## What Needs to be Completed
+
+### Priority 1: Database Setup & Connection
+1. **Start PostgreSQL Database**
+   - Either start a local PostgreSQL instance
+   - Or set up Docker container with PostgreSQL
+   - Or configure the application to use an in-memory/mock database for testing
+
+2. **Database Configuration**
+   - Verify database connection string in configuration
+   - Ensure database migrations run successfully
+   - Check that database tables are created properly
+
+3. **Connection Pool Management**
+   - Fix the "database is closed" error
+   - Ensure proper database connection lifecycle management
+   - Verify connection pool settings
+
+### Priority 2: Application Service Implementation
+The application CRUD operations are failing, which suggests:
+1. **Repository Layer**: Verify PostgreSQL repository implementations work correctly
+2. **Service Layer**: Ensure application service properly handles database operations
+3. **Error Handling**: Improve error responses for database connectivity issues
+
+### Priority 3: Token Service Edge Cases
+1. **Delete Token Validation**: The delete token endpoint should return appropriate error codes for non-existent tokens
+2. **Error Response Consistency**: Ensure consistent error handling across all endpoints
+
+## Technical Details
+
+### Server Configuration
+- **Server Port**: 8081 (8080 was in use)
+- **Database**: PostgreSQL (currently not connected)
+- **Framework**: Gin (Go web framework)
+- **Architecture**: Clean architecture with repositories, services, and handlers
+
+### Key Files to Examine
+- `cmd/server/main.go` - Server startup and database initialization
+- `internal/database/postgres.go` - Database connection management
+- `internal/services/application_service.go` - Application CRUD operations
+- `internal/services/token_service.go` - Token management
+- `docker-compose.yml` - Database container configuration
+- `migrations/001_initial_schema.up.sql` - Database schema
+
+### Current Working State
+✅ **Working Endpoints**:
+- Health check (basic)
+- Authentication (login, verify, renew)
+- Token operations (create, list, delete - when not requiring complex validation)
+- Error handling for malformed JSON
+- API documentation
+
+❌ **Failing Endpoints**:
+- Readiness check (database health)
+- Application CRUD operations
+- Some edge case validations
+
+## Success Criteria
+After resolution, all 22 tests should pass:
+1. Database connectivity restored (readiness check returns 200)
+2. Application CRUD operations working (create, read, update, delete, list)
+3. Proper error handling for edge cases
+4. All endpoints returning expected HTTP status codes
+
+## How to Test
+Run the E2E test script to verify fixes:
+```bash
+BASE_URL=http://localhost:8081 ./test/e2e_test.sh
+```
+
+The test script provides detailed output showing exactly which endpoints are failing and what responses they're returning versus what's expected.
+
+## Additional Context
+- The server starts successfully and handles HTTP requests
+- Authentication middleware is working correctly
+- The issue appears to be primarily database-related
+- Some service implementations may have placeholder code that needs completion
+- The test suite is comprehensive and will clearly show when issues are resolved