react-native/local-cli/core/__tests__/findPlugins.spec.js

70 lines
2.4 KiB
JavaScript

/**
* Copyright (c) 2013-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @emails oncall+javascript_foundation
*/
'use strict';
const findPlugins = require('../findPlugins');
const path = require('path');
const ROOT = path.join(__dirname, '..', '..', '..');
const pjsonPath = path.join(ROOT, 'package.json');
describe('findPlugins', () => {
beforeEach(() => {
jest.resetModules();
});
it('returns an array of dependencies', () => {
jest.mock(pjsonPath, () => ({
dependencies: {'rnpm-plugin-test': '*'},
}));
expect(findPlugins([ROOT])).toHaveProperty('commands');
expect(findPlugins([ROOT])).toHaveProperty('platforms');
expect(findPlugins([ROOT]).commands).toHaveLength(1);
expect(findPlugins([ROOT]).commands[0]).toBe('rnpm-plugin-test');
expect(findPlugins([ROOT]).platforms).toHaveLength(0);
});
it('returns an empty array if there are no plugins in this folder', () => {
jest.mock(pjsonPath, () => ({}));
expect(findPlugins([ROOT])).toHaveProperty('commands');
expect(findPlugins([ROOT])).toHaveProperty('platforms');
expect(findPlugins([ROOT]).commands).toHaveLength(0);
expect(findPlugins([ROOT]).platforms).toHaveLength(0);
});
it('returns an object with empty arrays if there is no package.json in the supplied folder', () => {
expect(findPlugins(['fake-path'])).toHaveProperty('commands');
expect(findPlugins(['fake-path'])).toHaveProperty('platforms');
expect(findPlugins(['fake-path']).commands).toHaveLength(0);
expect(findPlugins(['fake-path']).platforms).toHaveLength(0);
});
it('returns plugins from both dependencies and dev dependencies', () => {
jest.mock(pjsonPath, () => ({
dependencies: {'rnpm-plugin-test': '*'},
devDependencies: {'rnpm-plugin-test-2': '*'},
}));
expect(findPlugins([ROOT])).toHaveProperty('commands');
expect(findPlugins([ROOT])).toHaveProperty('platforms');
expect(findPlugins([ROOT]).commands).toHaveLength(2);
expect(findPlugins([ROOT]).platforms).toHaveLength(0);
});
it('returns unique list of plugins', () => {
jest.mock(pjsonPath, () => ({
dependencies: {'rnpm-plugin-test': '*'},
devDependencies: {'rnpm-plugin-test': '*'},
}));
expect(findPlugins([ROOT]).commands).toHaveLength(1);
});
});