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Questions - istanbul

React Jest Unit Testing await in private function uncovered line

I call a async function in useEffect const [documents, setDocuments] = useState(Array()); async function findDocuments() { const res = await findDocumentList([], {}); setDocuments(res.data...
test-img

MareCieco

jestjs

code-coverage

istanbul

Votes: 0

Answers: 1

Latest Answer

The coverage report needs every async function to have an await on it: await findDocuments()
test-img

Brent Washburne

How to ignore the catch clause of a promise in Jest test coverage?

In my unit tests I have one case where I get a promise from a browser API (IndexedDB) and added a catch clause to handle any error condition. For obvious reasons I cannot trigger the promise to fail i...
test-img

Mike Lischke

jestjs

istanbul

Votes: 0

Answers: 1

Latest Answer

The place to add the ignore hint is directly before the closure in the catch clause: Promise.all([promise1, promise2]).then(() => { ... }).catch(/* istanbul ignore next */(reason) => { ...
test-img

Mike Lischke

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