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1---
2globs: **/*.test.ts,**/*.test.tsx,**/*.spec.ts,**/*.spec.tsx,**/*.cy.ts
3---
4 
5# Testing Conventions
6 
7## Testing Stack
8 
9- **Unit Tests**: Jest with React Testing Library
10- **E2E Tests**: Cypress
11- **Backend Tests**: Jest with Strapi testing utilities
12- **Coverage**: Istanbul for coverage reporting
13 
14## Test File Organization
15 
16- **Unit Tests**: `*.test.ts` or `*.test.tsx`
17- **E2E Tests**: `*.cy.ts` in [apps/frontend/cypress/e2e/](mdc:apps/frontend/cypress/e2e/)
18- **Fixtures**: Test data in [apps/frontend/cypress/fixtures/](mdc:apps/frontend/cypress/fixtures/)
19 
20## Testing Patterns
21 
22### Frontend Component Tests
23 
24```typescript
25import { render, screen } from '@testing-library/react';
26import { Button } from './Button';
27 
28describe('Button', () => {
29  it('renders with correct text', () => {
30    render(<Button>Click me</Button>);
31    expect(screen.getByText('Click me')).toBeInTheDocument();
32  });
33});
34```
35 
36### Backend API Tests
37 
38```typescript
39import { createStrapiInstance } from '@strapi/strapi';
40 
41describe('Product API', () => {
42  let strapi: StrapiInstance;
43 
44  beforeAll(async () => {
45    strapi = await createStrapiInstance();
46  });
47 
48  afterAll(async () => {
49    await strapi.destroy();
50  });
51});
52```
53 
54### E2E Tests
55 
56```typescript
57describe('Product Series', () => {
58  it('should display product series page', () => {
59    cy.visit('/en/product-series');
60    cy.get('[data-testid="product-series"]').should('be.visible');
61  });
62});
63```
64 
65## Test Configuration
66 
67- **Jest Config**: [apps/frontend/jest.config.ts](mdc:apps/frontend/jest.config.ts)
68- **Cypress Config**: [apps/frontend/cypress.config.ts](mdc:apps/frontend/cypress.config.ts)
69- **Setup Files**: [apps/frontend/jest.setup.ts](mdc:apps/frontend/jest.setup.ts)
70 
71## Running Tests
72 
73- `yarn test` - Run all tests
74- `yarn test:watch` - Watch mode
75- `yarn test:coverage` - With coverage
76- `yarn e2e` - Run Cypress tests
77- `yarn e2e:dev` - Open Cypress UI
78 
79## Best Practices
80 
81- Use `data-testid` attributes for reliable element selection
82- Mock external dependencies
83- Test user interactions, not implementation details
84- Keep tests focused and independent
85- Use descriptive test names