# Discountedcookie 10x Mapmaster Testing > Testing - Skill: `tomevault-io/discountedcookie-10x-mapmaster-testing` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/discountedcookie-10x-mapmaster-testing` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/discountedcookie-10x-mapmaster-testing/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/discountedcookie-10x-mapmaster-testing --- # Testing Verify changes don't break things. Don't create test bloat. > **Announce:** "I'm running tests to verify the changes." ## Philosophy **Database (pgTAP):** This is where real logic lives. Test it thoroughly. **Frontend (Vitest):** Thin RPC layer. Only test: - Complex transformations - Non-obvious edge cases - NOT: "does this call that function" ## Workflow **Before implementing:** ```bash bun run test ``` If tests fail, fix them first. **After implementing:** ```bash bun run test ``` If tests fail, your change broke something. Fix it. ## When to Add Tests **YES - add tests for:** - New database functions with business logic - Complex data transformations - Non-obvious edge cases you discovered **NO - don't test:** - "Does this function call that function" - Pinia store initialization - Vue component mounting - API calls with mocked responses - Obvious behavior readable from code ## Commands ```bash bun run test # All tests (unit + db) bun run test:unit # Frontend only bun run test:db # Database only (pgTAP) ``` ## If Tests Fail 1. Read the error message 2. Check if YOUR change caused it 3. If yes → fix your code 4. If no → fix the test or report the issue --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/discountedcookie) — claim your Tome and manage your conversions.