Blob-constructor-dom.window.js (1617B)
1 // META: title=Blob constructor 2 // META: script=../support/Blob.js 3 'use strict'; 4 5 var test_error = { 6 name: "test", 7 message: "test error", 8 }; 9 10 test(function() { 11 var args = [ 12 document.createElement("div"), 13 window, 14 ]; 15 args.forEach(function(arg) { 16 assert_throws_js(TypeError, function() { 17 new Blob(arg); 18 }, "Should throw for argument " + format_value(arg) + "."); 19 }); 20 }, "Passing platform objects for blobParts should throw a TypeError."); 21 22 test(function() { 23 var element = document.createElement("div"); 24 element.appendChild(document.createElement("div")); 25 element.appendChild(document.createElement("p")); 26 var list = element.children; 27 Object.defineProperty(list, "length", { 28 get: function() { throw test_error; } 29 }); 30 assert_throws_exactly(test_error, function() { 31 new Blob(list); 32 }); 33 }, "A platform object that supports indexed properties should be treated as a sequence for the blobParts argument (overwritten 'length'.)"); 34 35 test_blob(function() { 36 var select = document.createElement("select"); 37 select.appendChild(document.createElement("option")); 38 return new Blob(select); 39 }, { 40 expected: "[object HTMLOptionElement]", 41 type: "", 42 desc: "Passing an platform object that supports indexed properties as the blobParts array should work (select)." 43 }); 44 45 test_blob(function() { 46 var elm = document.createElement("div"); 47 elm.setAttribute("foo", "bar"); 48 return new Blob(elm.attributes); 49 }, { 50 expected: "[object Attr]", 51 type: "", 52 desc: "Passing an platform object that supports indexed properties as the blobParts array should work (attributes)." 53 });