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AverageAsync.ts
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AverageAsync.ts
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import { InvalidOperationException } from "linq-to-typescript"
import { asAsync, expectAsync, itAsync, itEnumerableAsync, itParallel, randomTimeOut } from "../TestHelpers"
describe("averageAsync", () => {
itEnumerableAsync("selector", async (asEnumerable) => {
const value = await asEnumerable([0, 10]).averageAsync(async (x) => x * 10)
expect(value).toBe(50)
})
itAsync("selector", async () => {
const value = await asAsync([0, 10]).averageAsync(async (x) => x * 10)
expect(value).toBe(50)
})
itParallel("selector", async (asParallel) => {
expect(await asParallel([0, 10]).averageAsync(async (x) => x * 10)).toBe(50)
})
itEnumerableAsync("empty array with selector throws exception", async (asEnumerable) => {
const expect = await expectAsync(asEnumerable([]).averageAsync(async (x) => x * 10))
expect.toThrowError(InvalidOperationException)
})
itAsync("empty array with selector throws exception", async () => {
const expect = await expectAsync((asAsync([])).averageAsync(async (x) => x * 10))
expect.toThrowError(InvalidOperationException)
})
itParallel("empty array with selector throws exception", async (asParallel) => {
const expect = await expectAsync((asParallel([])).averageAsync(async (x) => x * 10))
expect.toThrowError(InvalidOperationException)
})
//#region Zero Array
itEnumerableAsync("Zero Array", async (asEnumerable) => {
const avg = await asEnumerable([0, 0]).averageAsync(randomTimeOut)
expect(avg).toBe(0)
})
itAsync("Zero Array", async () => {
const avg = await asAsync([0, 0]).averageAsync(randomTimeOut)
expect(avg).toBe(0)
})
itParallel("Zero Array", async (asParallel) => {
const avg = await asParallel([0, 0]).averageAsync(randomTimeOut)
expect(avg).toBe(0)
})
//#endregion
})