/test - Test Generation and Execution

Name: test
Rating: 76
Author: HaoNgo232

$ARGUMENTS

Purpose

This command generates tests, runs existing tests, or checks test coverage.

Sub-commands

code

/test                - Run all tests
/test [file/feature] - Generate tests for specific target
/test coverage       - Show test coverage report
/test watch          - Run tests in watch mode

Behavior

Generate Tests

When asked to test a file or feature:

•
Analyze the code
- •Identify functions and methods
- •Find edge cases
- •Detect dependencies to mock
•
Generate test cases
- •Happy path tests
- •Error cases
- •Edge cases
- •Integration tests (if needed)
•
Write tests
- •Use project's test framework (Jest, Vitest, etc.)
- •Follow existing test patterns
- •Mock external dependencies

Output Format

For Test Generation

markdown

## 🧪 Tests: [Target]

### Test Plan
| Test Case | Type | Coverage |
|-----------|------|----------|
| Should create user | Unit | Happy path |
| Should reject invalid email | Unit | Validation |
| Should handle db error | Unit | Error case |

### Generated Tests

`tests/[file].test.ts`

[Code block with tests]

---

Run with: `npm test`

For Test Execution

code

🧪 Running tests...

✅ auth.test.ts (5 passed)
✅ user.test.ts (8 passed)
❌ order.test.ts (2 passed, 1 failed)

Failed:
  ✗ should calculate total with discount
    Expected: 90
    Received: 100

Total: 15 tests (14 passed, 1 failed)

Examples

code

/test src/services/auth.service.ts
/test user registration flow
/test coverage
/test fix failed tests

Test Patterns

Unit Test Structure

typescript

describe('AuthService', () => {
  describe('login', () => {
    it('should return token for valid credentials', async () => {
      // Arrange
      const credentials = { email: 'test@test.com', password: 'pass123' };
      
      // Act
      const result = await authService.login(credentials);
      
      // Assert
      expect(result.token).toBeDefined();
    });

    it('should throw for invalid password', async () => {
      // Arrange
      const credentials = { email: 'test@test.com', password: 'wrong' };
      
      // Act & Assert
      await expect(authService.login(credentials)).rejects.toThrow('Invalid credentials');
    });
  });
});

Key Principles

•Test behavior not implementation
•One assertion per test (when practical)
•Descriptive test names
•Arrange-Act-Assert pattern
•Mock external dependencies