assertSpyCallAsync

function

async function assertSpyCallAsync<Self, Args extends unknown[], Return>(spy: SpyLike<Self, Args, Promise<Return>>, callIndex: number, expected?: ExpectedSpyCall<Self, Args, Promise<Return> | Return>): Promise<void>

Asserts that an async spy is called as expected.

spy: SpyLike<Self, Args, Promise<Return>>

The spy to check

callIndex: number

The index of the call to check

expected?: ExpectedSpyCall<Self, Args, Promise<Return> | Return>

The expected spy call.

import { assertSpyCallAsync, spy } from "@ende/testing/mock";

const func = spy((a: number, b: number) => new Promise((resolve) => {
  setTimeout(() => resolve(a + b), 100)
}));

await func(3, 4);
await func(5, 6);

// asserts each call made to the spy function.
await assertSpyCallAsync(func, 0, { args: [3, 4], returned: 7 });
await assertSpyCallAsync(func, 1, { args: [5, 6], returned: 11 });