PhantomJS does not recognize assertion

[billpull]

Added a custom assertion and it runs fine in Chrome but fails in PhantomJS.

Expected at least one assertion, but none were run - call expect(0) to accept zero assertions

• ember-cli: 2.4.2
• node: 4.3.2
• PhantomJS: 2.0

My custom assertion is pretty long where attempting to do a pushResult on a bunch of expected behavior that originally was multiple assertions.

export default function userMessage(context, message, messageText = '', numMessages = 1, type = 'error') {
  const userMessageEl = context.$('[data-test-userMessages]');
  if (!userMessageEl) {
    return this.pushResult({
      result: false,
      actual: 0,
      expected: numMessages,
      message: `${message} - User Message Did Not Appear`
    });
  }

  const actualNumMessages = userMessageEl.length;
  if (actualNumMessages !== numMessages) {
    return this.pushResult({
      result: false,
      actual: actualNumMessages,
      expected: numMessages,
      message: `${message} - Unexpected User Messages`
    });
  }

  const actualMessage = context.$('[data-test-userMessageDetail').text().trim();
  if (messageText && (messageText !== actualMessage)) {
    return this.pushResult({
      result: false,
      actual: actualMessage,
      expected: messageText,
      message: `${message} - Incorrect Message Text`
    });
  }

  const expectedTypeClass = `user-messages__message--${type}`;
  if (!userMessageEl.hasClass(expectedTypeClass)) {
    const actualClasses = userMessageEl.attr('class');
    return this.pushResult({
      result: false,
      actual: actualClasses,
      expected: expectedTypeClass,
      message: `${message} - Incorrect Type Class`
    });
  }

  const expected = `${numMessages} - ${messageText}`;
  const actual = expected;
  return this.pushResult({
    result: true,
    actual,
    expected,
    message
  });
}