⚙️ Implementation: Session 176: How to structure unit tests for a 5-phase imple...

Date: 2026-03-04
Time: 20:03:44 UTC
Session: gspace1-176.3
Agent: testing
Confidence: 95%
Status: ✅ Documented

📋 Decision Context

Question:

Session 176: How to structure unit tests for a 5-phase implementation spanning 2 backends and 6 new files?

Task: Not specified

🎯 Decision Made

Chosen:

Created 6 test files: (1) permission-tiers.spec.ts — RolesGuard hierarchy with executive:90, SystemRoles/ADMIN_ROLES; (2) page-action-tool.spec.ts — tool schema, bridge execution, error handling; (3) error-parser.spec.ts — tsc/Angular/NX format parsing, deduplication, LLM formatting; (4) build-test-fix.spec.ts — sandbox loop, structural fallback, escalation memory; (5) fullstack-orchestration.spec.ts — SSE events, backend delegation, entity derivation; (6) emotional-arc.spec.ts — 5-dimension scoring, trend computation, tone adjustment, conversation scenarios

Options Considered:

• No alternatives documented

💭 Reasoning

Strategy: test each phase in isolation with separate test files per service. Pure logic services (ErrorParser, EmotionalArc) tested directly without NestJS DI. Service-with-dependencies (BuildTestFix, RolesGuard, FullstackOrchestration) tested with NestJS TestingModule + mock providers. Key learnings: (1) SandboxExecutionResult.engine is 'e2b'|'local' not arbitrary string; (2) CorrectionResult has files/totalFixes/fixDetails not corrections/totalApplied; (3) ModuleGenCost has durationMs/provider/model not llmCalls; (4) GeneratedFileSpec requires moduleName field; (5) Emotional scoring produces small non-zero values even for empty messages due to length factor. All 64 tests green.

📁 Files Involved

• APIs/backend-vitto-api/src/app/engine/__tests__/session-176-permission-tiers.spec.ts
• APIs/backend-vitto-api/src/app/tools/__tests__/page-action-tool.spec.ts
• APIs/backend-vitto-api/src/app/module-generation/__tests__/error-parser.spec.ts
• APIs/backend-vitto-api/src/app/module-generation/__tests__/build-test-fix.spec.ts
• APIs/backend-vitto-api/src/app/module-generation/__tests__/fullstack-orchestration.spec.ts
• APIs/backend-ai-api/src/app/sessions/__tests__/emotional-arc.spec.ts

🔗 Related

• Decision ID: dev_1772654624402_6q0fgod
• Session: 176
• Workspace: gspace1

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