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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { assertSpyCall, assertSpyCalls, spy } from "../mock.ts";import { assertEquals } from "../asserts.ts";import { multiply, square } from "./parameter_injection.ts";
Deno.test("square calls multiply and returns results", () => { const multiplySpy = spy(multiply);
assertEquals(square(multiplySpy, 5), 25);
// asserts that multiplySpy was called at least once and details about the first call. assertSpyCall(multiplySpy, 0, { args: [5, 5], returned: 25, });
// asserts that multiplySpy was only called once. assertSpyCalls(multiplySpy, 1);});