Bug 738912 - Part 2: Add tests. r=sicking

ok(true, "an undefined options member should throw");

}

/** Test for dictionary initialization order **/

(function() {

  var o = {};

  var p = {type: "text/plain", endings: "transparent"};

  var called = [];

  function add_to_called(n) {

    called.push(n);

    return p[n];

  }

  ["type", "endings"].forEach(function(n) {

    Object.defineProperty(o, n, { get: add_to_called.bind(null, n) });

  });

  var b = new Blob([], o);

  is(JSON.stringify(called), JSON.stringify(["endings", "type"]), "dictionary members should be get in lexicographical order");

})();

let blob1 = Blob(["squiggle"]);

ok(blob1 instanceof Blob, "Blob constructor should produce Blobs");

ok(!(blob1 instanceof File), "Blob constructor should not produce Files");