sickn33/agentic-awesome-skills · error · Error

User already exists

Error message

User already exists

What it means

Error "User already exists" thrown in sickn33/agentic-awesome-skills.

Source

Thrown at skills/javascript-testing-patterns/resources/implementation-playbook.md:136

    });

    it('should throw error when dividing by zero', () => {
      expect(() => divide(10, 0)).toThrow('Division by zero');
    });
  });
});
```

### Pattern 2: Testing Classes

```typescript
// services/user.service.ts
export class UserService {
  private users: Map<string, User> = new Map();

  create(user: User): User {
    if (this.users.has(user.id)) {
      throw new Error('User already exists');
    }
    this.users.set(user.id, user);
    return user;
  }

  findById(id: string): User | undefined {
    return this.users.get(id);
  }

  update(id: string, updates: Partial<User>): User {
    const user = this.users.get(id);
    if (!user) {
      throw new Error('User not found');
    }
    const updated = { ...user, ...updates };
    this.users.set(id, updated);
    return updated;
  }

View on GitHub (pinned to 58d857988f)

When it happens

Trigger: Thrown at skills/javascript-testing-patterns/resources/implementation-playbook.md:136 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of sickn33/agentic-awesome-skills@58d857988f (2026-08-26). Data as JSON: /api/errors/1d0c1197841d4561. Report an issue: GitHub.