react-native-testing
Write tests using React Native Testing Library (RNTL) v13 and v14 (`@testing-library/react-native`). Use when writing, reviewing, or fixing React Native component tests. Covers: render, screen, queries (getBy/getAllBy/queryBy/findBy), Jest matchers, userEvent, fireEvent, waitFor, and async patterns. Supports v13 (React 18, sync render) and v14 (React 19+, async render). Triggers on: test files for React Native components, RNTL imports, mentions of "testing library", "write tests", "component tests", or "RNTL".
Install with Tessl CLI
npx tessl i github:callstack/react-native-testing-library --skill react-native-testing100
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Validation for skill structure
Evaluation results
100%
18%Payment Form Testing
RNTL v14 async API patterns
Await render
100%
100%
Await fireEvent
100%
100%
screen for queries
100%
100%
getByRole as primary query
0%
100%
userEvent over fireEvent
100%
100%
Fake timers with userEvent
0%
100%
RNTL matchers used
100%
100%
No removed v14 APIs
100%
100%
No act() wrapping
100%
100%
No manual cleanup
100%
100%
Without context: $1.7173 · 6m 11s · 49 turns · 52 in / 20,297 out tokens
With context: $1.4040 · 4m 28s · 48 turns · 3,290 in / 11,278 out tokens
100%
47%News Feed Component Tests
Query selection and async element patterns
screen for queries
100%
100%
getByRole priority
0%
100%
queryBy* for non-existence only
70%
100%
findBy* for async elements
100%
100%
No side effects in waitFor
100%
100%
One assertion per waitFor
100%
100%
userEvent over fireEvent
0%
100%
Fake timers with userEvent
0%
100%
within() for list items
0%
100%
No act() wrapping
100%
100%
toBeOnTheScreen matcher
0%
100%
Without context: $0.9072 · 3m 49s · 37 turns · 42 in / 9,966 out tokens
With context: $1.2305 · 4m 20s · 35 turns · 7,575 in / 11,976 out tokens
84%
52%Settings Screen Tests
ARIA props, RNTL matchers, and context providers
getByRole state options
0%
0%
getByRole with options
100%
100%
No raw prop assertions
40%
100%
RNTL state matchers
0%
100%
wrapper option for providers
0%
100%
screen for queries
100%
100%
queryBy* for non-existence only
50%
100%
toBeOnTheScreen over toBeNull checks
0%
100%
No manual cleanup
100%
100%
userEvent for interactions
0%
60%
Fake timers with userEvent
0%
100%
Without context: $2.4656 · 8m 3s · 72 turns · 81 in / 25,968 out tokens
With context: $1.1682 · 4m 18s · 42 turns · 301 in / 11,458 out tokens
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