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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { assertSpyCall, assertSpyCalls, returnsNext, stub } from "../mock.ts";import { assertEquals } from "../asserts.ts";import { _internals, randomMultiple } from "./random.ts";
Deno.test("randomMultiple uses randomInt to generate random multiples between -10 and 10 times the value", () => {  const randomIntStub = stub(_internals, "randomInt", returnsNext([-3, 3]));
  try {    assertEquals(randomMultiple(5), -15);    assertEquals(randomMultiple(5), 15);  } finally {    // unwraps the randomInt method on the _internals object    randomIntStub.restore();  }
  // asserts that randomIntStub was called at least once and details about the first call.  assertSpyCall(randomIntStub, 0, {    args: [-10, 10],    returned: -3,  });  // asserts that randomIntStub was called at least twice and details about the second call.  assertSpyCall(randomIntStub, 1, {    args: [-10, 10],    returned: 3,  });
  // asserts that randomIntStub was only called twice.  assertSpyCalls(randomIntStub, 2);});