Helper functions for quickly wrapping mock data in promises for unit tests.
npm install promisethat --save-dev
e.g.:
import promiseThat from "promisethat";
// mock response that needs to be wrapped in promise
const data: { aProperty: "with a value" };
// stubbed api call
sinon.stub(anApiLibrary, "anApiCall")
.returns(promiseThat.resolvesWith(data));