v8Coverage.test.ts

/**
 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import * as path from 'path';
import wrap from 'jest-snapshot-serializer-raw';
import runJest from '../runJest';

const DIR = path.resolve(__dirname, '../v8-coverage');

test('prints coverage with missing sourcemaps', () => {
  const sourcemapDir = path.join(DIR, 'no-sourcemap');

  const {stdout, exitCode} = runJest(
    sourcemapDir,
    ['--coverage', '--coverage-provider', 'v8'],
    {stripAnsi: true},
  );

  expect(exitCode).toBe(0);
  expect(wrap(stdout)).toMatchSnapshot();
});

test('prints coverage with empty sourcemaps', () => {
  const sourcemapDir = path.join(DIR, 'empty-sourcemap');

  const {stdout, exitCode} = runJest(
    sourcemapDir,
    ['--coverage', '--coverage-provider', 'v8'],
    {stripAnsi: true},
  );

  expect(exitCode).toBe(0);
  expect(wrap(stdout)).toMatchSnapshot();
});