support_backend/tests/unit/problem-management/root-cause-schema.test.ts

import { describe, it, expect } from 'vitest';
import { createRootCauseSchema, ROOT_CAUSE_TYPES } from '@/modules/problem-management/root-causes/schema/root-cause.schema';

describe('createRootCauseSchema', () => {
  it('accepts every documented root cause type', () => {
    for (const type of ROOT_CAUSE_TYPES) {
      const result = createRootCauseSchema.safeParse({ type, description: 'some cause' });
      expect(result.success).toBe(true);
    }
  });

  it('rejects a type outside the five documented values', () => {
    const result = createRootCauseSchema.safeParse({
      type: 'user_error',
      description: 'not a real type',
    });
    expect(result.success).toBe(false);
  });

  it('rejects an empty description', () => {
    const result = createRootCauseSchema.safeParse({ type: 'technical', description: '' });
    expect(result.success).toBe(false);
  });

  it('rejects unknown extra fields (strict schema)', () => {
    const result = createRootCauseSchema.safeParse({
      type: 'technical',
      description: 'x',
      extra: 'not allowed',
    });
    expect(result.success).toBe(false);
  });
});