Agent skill
react-native-testing-patterns
Implements testing strategies for React Native components, MST stores, and services using Jest, React Testing Library, and Maestro. Use when writing unit, integration, or E2E tests in Purrsuit Mobile App.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/testing/react-native-testing-patterns
SKILL.md
React Native Testing Patterns
This skill provides the established testing patterns for the Purrsuit Mobile App, ensuring high code quality and reliable automated verification.
When to Use This Skill
Use this skill when you need to:
- Write unit tests for MST models and stores
- Create component tests using React Testing Library (RTL)
- Mock Expo modules or native dependencies
- Implement E2E flows using Maestro
- Test services, utility functions, or API logic
Unit Testing (MST)
Model Testing
import { MyModel } from "@/models/MyModel"
describe("MyModel", () => {
it("can be created", () => {
const instance = MyModel.create({ id: "1", name: "Test" })
expect(instance.name).toBe("Test")
})
it("handles actions correctly", () => {
const instance = MyModel.create({ id: "1", name: "Test" })
instance.setName("Updated")
expect(instance.name).toBe("Updated")
})
})
Component Testing (RTL)
Basic Component Render
import { render } from "@testing-library/react-native"
import { ThemeProvider } from "@/theme/context"
import { MyComponent } from "./MyComponent"
describe("MyComponent", () => {
it("renders correctly", () => {
const { getByText } = render(
<ThemeProvider>
<MyComponent text="Hello" />
</ThemeProvider>
)
expect(getByText("Hello")).toBeDefined()
})
})
Mocking Patterns
Mocking Expo Modules
Mocks are usually centralized in test/setup.ts.
jest.mock("expo-localization", () => ({
getLocales: () => [{ languageTag: "en-US", textDirection: "ltr" }],
}))
E2E Testing (Maestro)
Basic Flow Pattern
appId: ${MAESTRO_APP_ID}
onFlowStart:
- runFlow: ../shared/_OnFlowStart.yaml
---
- tapOn: "Home"
- assertVisible: "My Collection"
References
See MST_TESTING.md for detailed store testing patterns.
See COMPONENT_TESTING.md for RTL and theme provider patterns.
See MAESTRO_FLOWS.md for E2E testing best practices.
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