text: /* This Source Code Form is subject to the terms of the Mozilla Public
   * License, v. 2.0. If a copy of the MPL was not distributed with this
   * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  
  'use strict';
  
  const { assert } = require('chai');
  const sendEmailBatch = require('../../../scripts/bulk-mailer/send-email-batch');
  const sinon = require('sinon');
  
  describe('send-email-batch', () => {
    const batch = ['a', 'b', 'c'];
  
    const sender = sinon.spy((userRecord) => {
      if (userRecord === 'c') {
        return Promise.reject(new Error('problem sending'));
      } else {
        return Promise.resolve();
      }
    });
    const log = {
      error: sinon.spy(),
      info: sinon.spy()
    };
  
    before(() => {
      return sendEmailBatch(batch, sender, log);
    });
  
    it('calls log as expected', () => {
      assert.equal(log.info.callCount, 2);
      assert.equal(log.info.args[0][0], 'send.success');
      assert.equal(log.info.args[1][0], 'send.success');
  
      assert.isTrue(log.error.calledOnce);
      assert.equal(log.error.args[0][0], 'send.error');
    });
  
    it('calls the sender as expected', () => {
      assert.equal(sender.callCount, 3);
      assert.equal(sender.args[0][0], 'a');
      assert.equal(sender.args[1][0], 'b');
      assert.equal(sender.args[2][0], 'c');
    });
  });
  