@Test
    @ConfiguredWithReadme("mailer/README.md")
    public void configure_mailer() {
        final Jenkins jenkins = Jenkins.get();
        final Mailer.DescriptorImpl descriptor = (Mailer.DescriptorImpl) jenkins.getDescriptor(Mailer.class);
        assertEquals("4441", descriptor.getSmtpPort());
        assertEquals("do-not-reply@acme.org", descriptor.getReplyToAddress());
        assertEquals("smtp.acme.org", descriptor.getSmtpHost());
    }
@author <a href="mailto:nicolas.deloof@gmail.com">Nicolas De Loof</a>
integrations/src/test/java/io/jenkins/plugins/casc/MailerTest.java