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<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.getTransceivers</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  'use strict';

  // Test is based on the following editor draft:
  // https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html

  /*
   *  5.1. RTCPeerConnection Interface Extensions
   *  partial interface RTCPeerConnection {
   *      sequence<RTCRtpSender>      getSenders();
   *      sequence<RTCRtpReceiver>    getReceivers();
   *      sequence<RTCRtpTransceiver> getTransceivers();
   *      ...
   *  };
   */

  test(t => {
    const pc = new RTCPeerConnection();

    assert_idl_attribute(pc, 'getSenders');
    const senders = pc.getSenders();
    assert_array_equals([], senders, 'Expect senders to be empty array');

    assert_idl_attribute(pc, 'getReceivers');
    const receivers = pc.getReceivers();
    assert_array_equals([], receivers, 'Expect receivers to be empty array');

    assert_idl_attribute(pc, 'getTransceivers');
    const transceivers = pc.getTransceivers();
    assert_array_equals([], transceivers, 'Expect transceivers to be empty array');

  }, 'Initial peer connection should have list of zero senders, receivers and transceivers');

</script>