test/integration/tasks/pull.spec.js

import { join } from 'path';
import expect from 'unexpected';
import proxyquire from 'proxyquire';
import { copy, outputJson, outputFile, readdir, remove } from 'fs-extra';
import { tmpDir } from '../../helpers/util';

const runPull = proxyquire('../../../src/tasks/pull', {
  '../lib/server/NodeBrowser': {
    default: class PullStub {
      async browse() {
        return false;
      }
    },
  },
}).default;

describe('pull task', function () {
  context('with the `--clean` flag', function () {
    const projectDir = tmpDir('pull-clean');
    const sourceDir = join(projectDir, 'src');
    const testFile = join(sourceDir, 'file-that-exists.txt');

    const originalCwd = process.cwd();

    before(() =>
      Promise.all([
        copy(
          join(__dirname, '../../fixtures/Atviseproject.babel.js'),
          join(projectDir, 'Atviseproject.babel.js')
        ),
        outputJson(join(projectDir, 'package.json'), {}),
        outputFile(testFile, 'Testing...'),
      ]).then(() => process.chdir(projectDir))
    );

    it('should empty the source directory first', function () {
      return expect(readdir(sourceDir), 'when fulfilled', 'not to be empty')
        .then(() => runPull({ clean: true }))
        .then(() => expect(readdir(sourceDir), 'when fulfilled', 'to be empty'));
    });

    after(() => {
      process.chdir(originalCwd);
      return remove(projectDir);
    });
  });
});