This is a testharness.js-based test.
FAIL Tests that getUserMedia raises a NOT_SUPPORTED_ERR exception when used with an empty options parameter assert_throws: function "function () {
      navigator.getUserMedia({}, t.step_func(function (stream) {
        assert_unreached("This should never be triggered since the constraints parameter is empty");
        t.done();
      }), t.step_func(function (error) {
        assert_unreached("This should never be triggered since the constraints parameter is empty");
      }));
  }" threw object "SyntaxError: Failed to execute 'getUserMedia' on 'Navigator': At least one of audio and video must be requested" that is not a DOMException NOT_SUPPORTED_ERR: property "code" is equal to 12, expected 9
Harness: the test ran to completion.

