workbox/test/workbox-build/node/dependency-check.js

/*
  Copyright 2018 Google LLC

  Use of this source code is governed by an MIT-style
  license that can be found in the LICENSE file or at
  https://opensource.org/licenses/MIT.
*/

const upath = require('upath');
const depcheck = require('depcheck');

describe(`[workbox-build] Test Dependencies`, function() {
  it(`should have required dependencies`, function() {
    return new Promise((resolve, reject) => {
      depcheck(upath.join(__dirname, '..', '..', '..', 'packages', 'workbox-build'), {
        ignoreDirs: [
          'test',
          'build',
          'demo',
        ],
        ignoreMatches: [
          '@babel/preset-env',
          '@babel/runtime',
          'type-fest',
          'workbox-background-sync',
          'workbox-broadcast-update',
          'workbox-cacheable-response',
          'workbox-core',
          'workbox-expiration',
          'workbox-google-analytics',
          'workbox-navigation-preload',
          'workbox-precaching',
          'workbox-range-requests',
          'workbox-recipes',
          'workbox-routing',
          'workbox-strategies',
          'workbox-streams',
          'workbox-sw',
          'workbox-window',
        ],
      }, (unusedDeps) => {
        if (unusedDeps.dependencies.length > 0) {
          return reject(new Error(`Unused dependencies defined in package.json: ${JSON.stringify(unusedDeps.dependencies)}`));
        }

        if (unusedDeps.devDependencies.length > 0) {
          return reject(new Error(`Unused dependencies defined in package.json: ${JSON.stringify(unusedDeps.devDependencies)}`));
        }

        if (Object.keys(unusedDeps.missing).length > 0) {
          return reject(new Error(`Dependencies missing from package.json: ${JSON.stringify(unusedDeps.missing)}`));
        }

        resolve();
      });
    });
  });

  it(`should have no devDependencies`, function() {
    // This test exists because there have been a number of situations where
    // dependencies have been used from the top level project and NOT from
    // this module itself. So dependencies are checked above and devDependencies
    // can be put in top level.
    const pkg = require('../../../packages/workbox-build/package.json');
    if (pkg.devDependencies && Object.keys(pkg.devDependencies) > 0) {
      throw new Error('No devDependencies in this module.');
    }
  });
});