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Jest testing patterns, factory functions, mocking strategies, and TDD workflow. Use when writing unit tests, creating test factories, or following TDD red-green-refactor cycle.
기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.
설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.
npx skills add https://github.com/ranbot-ai/awesome-skills --skill testing-patterns명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
로컬 사본을 원하시나요? SkillsMP에서 현재 제공할 수 있는 파일을 다운로드하세요.
SOC 직업 분류 기준
SKILL.md 표시 중
| name | testing-patterns |
| description | Jest testing patterns, factory functions, mocking strategies, and TDD workflow. Use when writing unit tests, creating test factories, or following TDD red-green-refactor cycle. |
| category | Development & Code Tools |
| source | antigravity |
| tags | ["typescript","react","api","ai","llm","workflow","rag"] |
| url | https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/testing-patterns |
Test-Driven Development (TDD):
Behavior-Driven Testing:
Factory Pattern:
getMockX(overrides?: Partial<X>) functionsCreate a custom render that wraps components with required providers:
// src/utils/testUtils.tsx
import { render } from '@testing-library/react-native';
import { ThemeProvider } from './theme';
export const renderWithTheme = (ui: React.ReactElement) => {
return render(
<ThemeProvider>{ui}</ThemeProvider>
);
};
Usage:
import { renderWithTheme } from 'utils/testUtils';
import { screen } from '@testing-library/react-native';
it('should render component', () => {
renderWithTheme(<MyComponent />);
expect(screen.getByText('Hello')).toBeTruthy();
});
import { ComponentProps } from 'react';
const getMockMyComponentProps = (
overrides?: Partial<ComponentProps<typeof MyComponent>>
) => {
return {
title: 'Default Title',
count: 0,
onPress: jest.fn(),
isLoading: false,
...overrides,
};
};
// Usage in tests
it('should render with custom title', () => {
const props = getMockMyComponentProps({ title: 'Custom Title' });
renderWithTheme(<MyComponent {...props} />);
expect(screen.getByText('Custom Title')).toBeTruthy();
});
interface User {
id: string;
name: string;
email: string;
role: 'admin' | 'user';
}
const getMockUser = (overrides?: Partial<User>): User => {
return {
id: '123',
name: 'John Doe',
email: 'john@example.com',
role: 'user',
...overrides,
};
};
// Usage
it('should display admin badge for admin users', () => {
const user = getMockUser({ role: 'admin' });
renderWithTheme(<UserCard user={user} />);
expect(screen.getByText('Admin')).toBeTruthy();
});
// Mock entire module
jest.mock('utils/analytics');
// Mock with factory function
jest.mock('utils/analytics', () => ({
Analytics: {
logEvent: jest.fn(),
},
}));
// Access mock in test
const mockLogEvent = jest.requireMock('utils/analytics').Analytics.logEvent;
jest.mock('./GetItems.generated', () => ({
useGetItemsQuery: jest.fn(),
}));
const mockUseGetItemsQuery = jest.requireMock(
'./GetItems.generated'
).useGetItemsQuery as jest.Mock;
// In test
mockUseGetItemsQuery.mockReturnValue({
data: { items: [] },
loading: false,
error: undefined,
});
describe('ComponentName', () => {
beforeEach(() => {
jest.clearAllMocks();
});
describe('Rendering', () => {
it('should render component with default props', () => {});
it('should render loading state when loading', () => {});
});
describe('User interactions', () => {
it('should call onPress when button is clicked', async () => {});
});
describe('Edge cases', () => {
it('should handle empty data gracefully', () => {});
});
});
// Element must exist
expect(screen.getByText('Hello')).toBeTruthy();
// Element should not exist
expect(screen.queryByText('Goodbye')).toBeNull();
// Element appears asynchronously
await waitFor(() => {
expect(screen.findByText('Loaded')).toBeTruthy();
});
import { fireEvent, screen } from '@testing-library/react-native';
it('should submit form on button click', async () => {
const onSubmit = jest.fn();
renderWithTheme(<LoginForm onSubmit={onSubmit} />);
fireEvent.changeText(screen.getByLabelText('Email'), 'user@example.com');
fireEvent.changeText(screen.getByLabelText('Password'), 'password123');
fireEvent.press(screen.getByTestId('login-button'));
await waitFor(() => {
expect(onSubmit).toHaveBeenCalled();
});
});
// Bad - testing the mock
expect(mockFetchData).toHaveBeenCalled();
// Good - testing actual behavior
expect(screen.getByText('John Doe')).toBeTruthy();
// Bad - duplicated, inconsistent test data
it('test 1', () => {
const user = { id: '1', name: 'John', email: 'john@test.com', role: 'user' };
});
it('test 2', () => {
const user = { id: '2', name: 'Jane', email: 'jane@test.com' }; // Missing role!
});
// Good - reusable factory
const user = getMockUser({ name: