react-native/local-cli/core/__tests__/android/getDependencyConfig.spec.js

A framework for building native apps using React

/**
 * Copyright (c) 2013-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @format
 * @emails oncall+javascript_foundation
 */

'use strict';

jest.mock('fs');

const getDependencyConfig = require('../../android').dependencyConfig;
const fs = require('fs');
const mocks = require('../../__fixtures__/android');

const userConfig = {};

describe('android::getDependencyConfig', () => {
  beforeAll(() => {
    fs.__setMockFilesystem({
      empty: {},
      nested: {
        android: {
          app: mocks.valid,
        },
      },
      corrupted: {
        android: {
          app: mocks.corrupted,
        },
      },
      noPackage: {
        android: {},
      },
    });
  });

  it('returns an object with android project configuration', () => {
    expect(getDependencyConfig('/nested', userConfig)).not.toBeNull();
    expect(typeof getDependencyConfig('/nested', userConfig)).toBe('object');
  });

  it('returns `null` if manifest file has not been found', () => {
    expect(getDependencyConfig('/empty', userConfig)).toBeNull();
  });

  it('returns `null` if android project was not found', () => {
    expect(getDependencyConfig('/empty', userConfig)).toBeNull();
  });

  it('returns `null` if android project does not contain ReactPackage', () => {
    expect(getDependencyConfig('/noPackage', userConfig)).toBeNull();
  });

  it('returns `null` if it cannot find a packageClassName', () => {
    expect(getDependencyConfig('/corrupted', userConfig)).toBeNull();
  });
});