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std/expect/_to_be_null_test.ts

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