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std/examples/tests/colors_test.ts

Deno standard library
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.import { assertStrictEq } from "../../testing/asserts.ts";
Deno.test("[examples/colors] print a colored text", async () => {  const decoder = new TextDecoder();  const process = Deno.run({    cmd: [Deno.execPath(), "colors.ts"],    cwd: "examples",    stdout: "piped",  });  try {    const output = await process.output();    const actual = decoder.decode(output).trim();    const expected = "Hello world!";    assertStrictEq(actual, expected);  } finally {    process.close();  }});