When encapsulating a Jest test in a function with TypeScript, what is the expected return type? Thank you.
const bar:ExpectedReturnType = () => test('this is another test', expect(false).toBeFalsy());
When encapsulating a Jest test in a function with TypeScript, what is the expected return type? Thank you.
const bar:ExpectedReturnType = () => test('this is another test', expect(false).toBeFalsy());
When calling either test
or it
, the return value is always void
:
const foo = (): void =>
test('this is a test', () => {
expect(true).toBeTruthy();
});
describe('test suites', () => {
foo();
});
The unit test yielded the following result:
PASS src/stackoverflow/58310060/index.spec.ts (10.251s)
test suites
✓ this is a test (6ms)
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 12.401s
Check out the source code here: https://github.com/mrdulin/jest-codelab/tree/master/src/stackoverflow/58310060
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