std/expect/_to_be_undefined_test.ts
2024-04-29 11:57:30 +09:00

19 lines
468 B
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { expect } from "./expect.ts";
import { AssertionError, assertThrows } from "@std/assert";
Deno.test("expect().toBeUndefined()", () => {
expect(undefined).toBeUndefined();
expect(null).not.toBeUndefined();
assertThrows(() => {
expect(null).toBeUndefined();
}, AssertionError);
assertThrows(() => {
expect(undefined).not.toBeUndefined();
}, AssertionError);
});