meteor/packages/email/email_tests.js

var streamBuffers = Npm.require('stream-buffers');

Tinytest.add("email - dev mode smoke test", function (test) {
  // This only tests dev mode, so don't run the test if this is deployed.
  if (process.env.MAIL_URL) return;

  try {
    var stream = new streamBuffers.WritableStreamBuffer;
    EmailTest.overrideOutputStream(stream);
    Email.send({
      from: "foo@example.com",
      to: "bar@example.com",
      cc: ["friends@example.com", "enemies@example.com"],
      subject: "This is the subject",
      text: "This is the body\nof the message\nFrom us.",
      headers: {'X-Meteor-Test': 'a custom header'}
    });
    // XXX brittle if mailcomposer changes header order, etc
    test.equal(stream.getContentsAsString("utf8"),
               "====== BEGIN MAIL #0 ======\n" +
               "(Mail not sent; to enable sending, set the MAIL_URL " +
                 "environment variable.)\n" +
               "MIME-Version: 1.0\r\n" +
               "X-Meteor-Test: a custom header\r\n" +
               "From: foo@example.com\r\n" +
               "To: bar@example.com\r\n" +
               "Cc: friends@example.com, enemies@example.com\r\n" +
               "Subject: This is the subject\r\n" +
               "Content-Type: text/plain; charset=utf-8\r\n" +
               "Content-Transfer-Encoding: quoted-printable\r\n" +
               "\r\n" +
               "This is the body\r\n" +
               "of the message\r\n" +
               "From us.\r\n" +
               "====== END MAIL #0 ======\n");
  } finally {
    EmailTest.restoreOutputStream();
  }
});