@Test
public void testCreateEmailMessage() {

  final AbstractMailer mailer = new AbstractMailer(this.props, this.messageCreator);
  final EmailMessage em = mailer.createEmailMessage("subject", "text/html", this.senderList);
  verify(this.messageCreator).createMessage();
  assertThat(this.message).isEqualTo(em);
  verify(this.message).setSubject("subject");
}