tdd-workflow

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Aktualisiert31. März 2026 um 05:10

Use when writing new features, fixing bugs, or refactoring tracker code. Enforces test-driven development with our Vitest + in-memory SQLite setup.

Installation

Mit Codex oder Claude installieren Kopieren Sie diesen Prompt, fügen Sie ihn in Codex, Claude oder einen anderen Assistant ein und lassen Sie die Skill-Seite prüfen und installieren.

Quelle

moodler

moodler/liz-tracker

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Verwandte BerufeSOC

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Softwarequalitätssicherungsanalysten und -testerInformatik- und Mathematikberufe·SOC 15-1253

SKILL.md

readonly

name	tdd-workflow
description	Use when writing new features, fixing bugs, or refactoring tracker code. Enforces test-driven development with our Vitest + in-memory SQLite setup.
origin	ECC-adapted

Test-Driven Development Workflow

When to Activate

Writing a new feature or MCP tool
Fixing a bug (write the failing test first)
Refactoring existing code
Adding a new space plugin

Core Principles

Red → Green → Refactor: Write a failing test, make it pass with minimal code, then clean up.
Test the behavior, not the implementation: Tests should describe what the code does, not how.
One assertion per test when possible: Makes failures easy to diagnose.

Tracker-Specific Test Setup

All tests use Vitest with in-memory SQLite:

import { describe, it, expect, beforeEach } from 'vitest';
import { _initTestTrackerDatabase } from './db';

describe('Feature Name', () => {
  let db: ReturnType<typeof _initTestTrackerDatabase>;

  beforeEach(() => {
    db = _initTestTrackerDatabase();
  });

  it('should do the expected thing', () => {
    // Arrange → Act → Assert
  });
});

TDD Workflow Steps

Understand the requirement — Read the work item description and comments
Write the test first — Create or extend a test file in src/**/*.test.ts
Run the test — npm test — verify it fails for the right reason
Write minimal implementation — Just enough to pass the test
Run all tests — npm test — verify nothing else broke
Refactor — Clean up while keeping tests green
Build check — npm run build — verify TypeScript compiles

Test File Conventions

Source file	Test file
`src/db.ts`	`src/db.test.ts`
`src/orchestrator.ts`	`src/orchestrator.test.ts`
`src/spaces/travel.ts`	`src/spaces/travel.test.ts`
`src/spaces/new-space.ts`	`src/spaces/new-space.test.ts`

What to Test

DB layer: State transitions, CRUD operations, actor classification, approval provenance
Orchestrator: Dispatch logic, error classification, schedule time gating
Space plugins: Parsers, sanitizers, deduplication logic
MCP tools: Input validation, authorization, expected outputs

Common Mistakes to Avoid

Testing implementation details (private function internals)
Skipping edge cases (empty inputs, null values, boundary conditions)
Not testing error paths (what happens when the DB query fails?)
Writing tests after the code is done (loses the design benefit of TDD)

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Test-Driven Development Workflow

When to Activate

Writing a new feature or MCP tool

Fixing a bug (write the failing test first)

Refactoring existing code

Adding a new space plugin

Core Principles

Red → Green → Refactor: Write a failing test, make it pass with minimal code, then clean up.

Test the behavior, not the implementation: Tests should describe what the code does, not how.

One assertion per test when possible: Makes failures easy to diagnose.

Tracker-Specific Test Setup

All tests use Vitest with in-memory SQLite:

import { describe, it, expect, beforeEach } from 'vitest'; import { _initTestTrackerDatabase } from './db'; describe('Feature Name', () => { let db: ReturnType<typeof _initTestTrackerDatabase>; beforeEach(() => { db = _initTestTrackerDatabase(); }); it('should do the expected thing', () => { // Arrange → Act → Assert }); });

TDD Workflow Steps

Understand the requirement — Read the work item description and comments

Write the test first — Create or extend a test file in src/**/*.test.ts

Run the test — npm test — verify it fails for the right reason

Write minimal implementation — Just enough to pass the test

Run all tests — npm test — verify nothing else broke

Refactor — Clean up while keeping tests green

Build check — npm run build — verify TypeScript compiles

Test File Conventions

Source file

Test file

src/db.ts

src/db.test.ts

src/orchestrator.ts

src/orchestrator.test.ts

src/spaces/travel.ts

src/spaces/travel.test.ts

src/spaces/new-space.ts

src/spaces/new-space.test.ts

What to Test

DB layer: State transitions, CRUD operations, actor classification, approval provenance

Orchestrator: Dispatch logic, error classification, schedule time gating

Space plugins: Parsers, sanitizers, deduplication logic

MCP tools: Input validation, authorization, expected outputs

Common Mistakes to Avoid

Testing implementation details (private function internals)

Skipping edge cases (empty inputs, null values, boundary conditions)

Not testing error paths (what happens when the DB query fails?)

Writing tests after the code is done (loses the design benefit of TDD)