ShouldJs Typescript issues with promises

Question

I'm getting a compile error in typescript with shouldjs only when trying to use the .rejected() / .fufilled() syntax

Promise.resolve().should // is fine, is an Assertion
Promise.resolve().should.rejected // is fine, is a Function
Promise.resolve().should.rejected() // TS2349 Cannot invoke expression whose type lacks a call signature. Type Promise<any> has no compatible call signatures

I tried casting to PromisedAssertion like this: (<PromisedAssertion>Promise.resolve()) or (Promise.resolve() as PromisedAssertion) to no effect. How can I fix this?

.should works fine otherwise

Looks like a bug in `should.js`, since the typings I get with `npm install` incorrectly set `rejected` and `fulfilled` as `Promise`. — Cerberus, Jul 20 '18 at 03:10
Done: https://github.com/shouldjs/should.js/issues/176 and https://github.com/lev-kuznetsov/should-promise-typescript-issue — Lev Kuznetsov, Jul 20 '18 at 12:10

score 0 · Answer 1 · answered Jul 20 '18 at 12:11

0

Created an issue against should repo, in the meantime casting to any works

answered Jul 20 '18 at 12:11

Lev Kuznetsov

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ShouldJs Typescript issues with promises

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