mirror of
https://github.com/servo/servo.git
synced 2025-06-13 19:04:30 +00:00
489 lines
14 KiB
HTML
489 lines
14 KiB
HTML
<!DOCTYPE html>
|
|
<meta charset=utf-8>
|
|
<title>Blob constructor</title>
|
|
<link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#constructorBlob">
|
|
<link rel=help href="https://heycam.github.io/webidl/#es-union">
|
|
<link rel=help href="https://heycam.github.io/webidl/#es-dictionary">
|
|
<link rel=help href="https://heycam.github.io/webidl/#es-sequence">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="../support/Blob.js"></script>
|
|
<div id="log"></div>
|
|
<script>
|
|
test(function() {
|
|
assert_true("Blob" in window, "window should have a Blob property.");
|
|
assert_equals(Blob.length, 0, "Blob.length should be 0.");
|
|
assert_true(Blob instanceof Function, "Blob should be a function.");
|
|
}, "Blob interface object");
|
|
|
|
// Step 1.
|
|
test(function() {
|
|
var blob = new Blob();
|
|
assert_true(blob instanceof Blob);
|
|
assert_equals(String(blob), '[object Blob]');
|
|
assert_equals(blob.size, 0);
|
|
assert_equals(blob.type, "");
|
|
}, "no-argument Blob constructor");
|
|
test(function() {
|
|
assert_throws(new TypeError(), function() { var blob = Blob(); });
|
|
}, "no-argument Blob constructor without 'new'");
|
|
test(function() {
|
|
var blob = new Blob;
|
|
assert_true(blob instanceof Blob);
|
|
assert_equals(blob.size, 0);
|
|
assert_equals(blob.type, "");
|
|
}, "no-argument Blob constructor without brackets");
|
|
|
|
// blobParts argument (WebIDL).
|
|
test(function() {
|
|
var args = [
|
|
null,
|
|
undefined,
|
|
true,
|
|
false,
|
|
0,
|
|
1,
|
|
1.5,
|
|
"FAIL",
|
|
new Date(),
|
|
new RegExp(),
|
|
{},
|
|
{ 0: "FAIL", length: 1 },
|
|
document.createElement("div"),
|
|
window,
|
|
];
|
|
args.forEach(function(arg) {
|
|
assert_throws(new TypeError(), function() {
|
|
new Blob(arg);
|
|
}, "Should throw for argument " + format_value(arg) + ".");
|
|
});
|
|
}, "Passing non-objects, Dates and RegExps for blobParts should throw a TypeError.");
|
|
|
|
test_blob(function() {
|
|
return new Blob({
|
|
[Symbol.iterator]: Array.prototype[Symbol.iterator],
|
|
});
|
|
}, {
|
|
expected: "",
|
|
type: "",
|
|
desc: "A plain object with @@iterator should be treated as a sequence for the blobParts argument."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob({
|
|
[Symbol.iterator]: Array.prototype[Symbol.iterator],
|
|
0: "PASS",
|
|
length: 1
|
|
});
|
|
}, {
|
|
expected: "PASS",
|
|
type: "",
|
|
desc: "A plain object with @@iterator and a length property should be treated as a sequence for the blobParts argument."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob(new String("xyz"));
|
|
}, {
|
|
expected: "xyz",
|
|
type: "",
|
|
desc: "A String object should be treated as a sequence for the blobParts argument."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob(new Uint8Array([1, 2, 3]));
|
|
}, {
|
|
expected: "123",
|
|
type: "",
|
|
desc: "A Uint8Array object should be treated as a sequence for the blobParts argument."
|
|
});
|
|
|
|
var test_error = {
|
|
name: "test",
|
|
message: "test error",
|
|
};
|
|
|
|
test(function() {
|
|
var obj = {
|
|
[Symbol.iterator]: Array.prototype[Symbol.iterator],
|
|
get length() { throw test_error; }
|
|
};
|
|
assert_throws(test_error, function() {
|
|
new Blob(obj);
|
|
});
|
|
}, "The length getter should be invoked and any exceptions should be propagated.");
|
|
|
|
test(function() {
|
|
var element = document.createElement("div");
|
|
element.appendChild(document.createElement("div"));
|
|
element.appendChild(document.createElement("p"));
|
|
var list = element.children;
|
|
Object.defineProperty(list, "length", {
|
|
get: function() { throw test_error; }
|
|
});
|
|
assert_throws(test_error, function() {
|
|
new Blob(list);
|
|
});
|
|
}, "A platform object that supports indexed properties should be treated as a sequence for the blobParts argument (overwritten 'length'.)");
|
|
|
|
test(function() {
|
|
assert_throws(test_error, function() {
|
|
var obj = {
|
|
[Symbol.iterator]: Array.prototype[Symbol.iterator],
|
|
length: {
|
|
valueOf: null,
|
|
toString: function() { throw test_error; }
|
|
}
|
|
};
|
|
new Blob(obj);
|
|
});
|
|
assert_throws(test_error, function() {
|
|
var obj = {
|
|
[Symbol.iterator]: Array.prototype[Symbol.iterator],
|
|
length: { valueOf: function() { throw test_error; } }
|
|
};
|
|
new Blob(obj);
|
|
});
|
|
}, "ToUint32 should be applied to the length and any exceptions should be propagated.");
|
|
|
|
test(function() {
|
|
var received = [];
|
|
var obj = {
|
|
get [Symbol.iterator]() {
|
|
received.push("Symbol.iterator");
|
|
return Array.prototype[Symbol.iterator];
|
|
},
|
|
get length() {
|
|
received.push("length getter");
|
|
return {
|
|
valueOf: function() {
|
|
received.push("length valueOf");
|
|
return 3;
|
|
}
|
|
};
|
|
},
|
|
get 0() {
|
|
received.push("0 getter");
|
|
return {
|
|
toString: function() {
|
|
received.push("0 toString");
|
|
return "a";
|
|
}
|
|
};
|
|
},
|
|
get 1() {
|
|
received.push("1 getter");
|
|
throw test_error;
|
|
},
|
|
get 2() {
|
|
received.push("2 getter");
|
|
assert_unreached("Should not call the getter for 2 if the getter for 1 threw.");
|
|
}
|
|
};
|
|
assert_throws(test_error, function() {
|
|
new Blob(obj);
|
|
});
|
|
assert_array_equals(received, [
|
|
"Symbol.iterator",
|
|
"length getter",
|
|
"length valueOf",
|
|
"0 getter",
|
|
"0 toString",
|
|
"length getter",
|
|
"length valueOf",
|
|
"1 getter",
|
|
]);
|
|
}, "Getters and value conversions should happen in order until an exception is thrown.");
|
|
|
|
// XXX should add tests edge cases of ToLength(length)
|
|
|
|
test(function() {
|
|
assert_throws(test_error, function() {
|
|
new Blob([{ toString: function() { throw test_error; } }]);
|
|
}, "Throwing toString");
|
|
assert_throws(test_error, function() {
|
|
new Blob([{ toString: undefined, valueOf: function() { throw test_error; } }]);
|
|
}, "Throwing valueOf");
|
|
assert_throws(test_error, function() {
|
|
new Blob([{
|
|
toString: function() { throw test_error; },
|
|
valueOf: function() { assert_unreached("Should not call valueOf if toString is present."); }
|
|
}]);
|
|
}, "Throwing toString and valueOf");
|
|
assert_throws(new TypeError(), function() {
|
|
new Blob([{toString: null, valueOf: null}]);
|
|
}, "Null toString and valueOf");
|
|
}, "ToString should be called on elements of the blobParts array and any exceptions should be propagated.");
|
|
|
|
test_blob(function() {
|
|
var arr = [
|
|
{ toString: function() { arr.pop(); return "PASS"; } },
|
|
{ toString: function() { assert_unreached("Should have removed the second element of the array rather than called toString() on it."); } }
|
|
];
|
|
return new Blob(arr);
|
|
}, {
|
|
expected: "PASS",
|
|
type: "",
|
|
desc: "Changes to the blobParts array should be reflected in the returned Blob (pop)."
|
|
});
|
|
|
|
test_blob(function() {
|
|
var arr = [
|
|
{
|
|
toString: function() {
|
|
if (arr.length === 3) {
|
|
return "A";
|
|
}
|
|
arr.unshift({
|
|
toString: function() {
|
|
assert_unreached("Should only access index 0 once.");
|
|
}
|
|
});
|
|
return "P";
|
|
}
|
|
},
|
|
{
|
|
toString: function() {
|
|
return "SS";
|
|
}
|
|
}
|
|
];
|
|
return new Blob(arr);
|
|
}, {
|
|
expected: "PASS",
|
|
type: "",
|
|
desc: "Changes to the blobParts array should be reflected in the returned Blob (unshift)."
|
|
});
|
|
|
|
test_blob(function() {
|
|
// https://www.w3.org/Bugs/Public/show_bug.cgi?id=17652
|
|
return new Blob([
|
|
null,
|
|
undefined,
|
|
true,
|
|
false,
|
|
0,
|
|
1,
|
|
new String("stringobject"),
|
|
[],
|
|
['x', 'y'],
|
|
{},
|
|
{ 0: "FAIL", length: 1 },
|
|
{ toString: function() { return "stringA"; } },
|
|
{ toString: undefined, valueOf: function() { return "stringB"; } },
|
|
{ valueOf: function() { assert_unreached("Should not call valueOf if toString is present on the prototype."); } }
|
|
]);
|
|
}, {
|
|
expected: "nullundefinedtruefalse01stringobjectx,y[object Object][object Object]stringAstringB[object Object]",
|
|
type: "",
|
|
desc: "ToString should be called on elements of the blobParts array."
|
|
});
|
|
|
|
test_blob(function() {
|
|
return new Blob([
|
|
new ArrayBuffer(8)
|
|
]);
|
|
}, {
|
|
expected: "\0\0\0\0\0\0\0\0",
|
|
type: "",
|
|
desc: "ArrayBuffer elements of the blobParts array should be supported."
|
|
});
|
|
|
|
test_blob(function() {
|
|
return new Blob([
|
|
new Uint8Array([0x50, 0x41, 0x53, 0x53]),
|
|
new Int8Array([0x50, 0x41, 0x53, 0x53]),
|
|
new Uint16Array([0x4150, 0x5353]),
|
|
new Int16Array([0x4150, 0x5353]),
|
|
new Uint32Array([0x53534150]),
|
|
new Int32Array([0x53534150]),
|
|
new Float32Array([0xD341500000])
|
|
]);
|
|
}, {
|
|
expected: "PASSPASSPASSPASSPASSPASSPASS",
|
|
type: "",
|
|
desc: "Passing typed arrays as elements of the blobParts array should work."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob([
|
|
// 0x535 3415053534150
|
|
// 0x535 = 0b010100110101 -> Sign = +, Exponent = 1333 - 1023 = 310
|
|
// 0x13415053534150 * 2**(-52)
|
|
// ==> 0x13415053534150 * 2**258 = 2510297372767036725005267563121821874921913208671273727396467555337665343087229079989707079680
|
|
new Float64Array([2510297372767036725005267563121821874921913208671273727396467555337665343087229079989707079680])
|
|
]);
|
|
}, {
|
|
expected: "PASSPASS",
|
|
type: "",
|
|
desc: "Passing a Float64Array as element of the blobParts array should work."
|
|
});
|
|
|
|
test_blob(function() {
|
|
var select = document.createElement("select");
|
|
select.appendChild(document.createElement("option"));
|
|
return new Blob(select);
|
|
}, {
|
|
expected: "[object HTMLOptionElement]",
|
|
type: "",
|
|
desc: "Passing an platform object that supports indexed properties as the blobParts array should work (select)."
|
|
});
|
|
|
|
var t_ports = async_test("Passing a platform array object as the blobParts array should work (MessagePort[]).");
|
|
t_ports.step(function() {
|
|
var channel = new MessageChannel();
|
|
channel.port2.onmessage = this.step_func(function(e) {
|
|
var b_ports = new Blob(e.ports);
|
|
assert_equals(b_ports.size, "[object MessagePort]".length);
|
|
this.done();
|
|
});
|
|
var channel2 = new MessageChannel();
|
|
channel.port1.postMessage('', [channel2.port1]);
|
|
});
|
|
|
|
test_blob(function() {
|
|
var elm = document.createElement("div");
|
|
elm.setAttribute("foo", "bar");
|
|
return new Blob(elm.attributes);
|
|
}, {
|
|
expected: "[object Attr]",
|
|
type: "",
|
|
desc: "Passing a platform array object as the blobParts array should work (Attr[])."
|
|
});
|
|
|
|
test_blob(function() {
|
|
var blob = new Blob(['foo']);
|
|
return new Blob([blob, blob]);
|
|
}, {
|
|
expected: "foofoo",
|
|
type: "",
|
|
desc: "Array with two blobs"
|
|
});
|
|
|
|
test_blob_binary(function() {
|
|
var view = new Uint8Array([0, 255, 0]);
|
|
return new Blob([view.buffer, view.buffer]);
|
|
}, {
|
|
expected: [0, 255, 0, 0, 255, 0],
|
|
type: "",
|
|
desc: "Array with two buffers"
|
|
});
|
|
|
|
test_blob_binary(function() {
|
|
var view = new Uint8Array([0, 255, 0, 4]);
|
|
var blob = new Blob([view, view]);
|
|
assert_equals(blob.size, 8);
|
|
var view1 = new Uint16Array(view.buffer, 2);
|
|
return new Blob([view1, view.buffer, view1]);
|
|
}, {
|
|
expected: [0, 4, 0, 255, 0, 4, 0, 4],
|
|
type: "",
|
|
desc: "Array with two bufferviews"
|
|
});
|
|
|
|
test_blob(function() {
|
|
var view = new Uint8Array([0]);
|
|
var blob = new Blob(["fo"]);
|
|
return new Blob([view.buffer, blob, "foo"]);
|
|
}, {
|
|
expected: "\0fofoo",
|
|
type: "",
|
|
desc: "Array with mixed types"
|
|
});
|
|
|
|
// options argument
|
|
test(function() {
|
|
new Blob([], { endings: "invalidEnumValue" });
|
|
new Blob([], { endings: null });
|
|
new Blob([], { endings: undefined });
|
|
new Blob([], { endings: 0 });
|
|
new Blob([], { get endings() { assert_unreached("Should not call getter"); } });
|
|
}, "The 'endings' property should be ignored.");
|
|
|
|
test(function() {
|
|
assert_throws(test_error, function() {
|
|
new Blob([], {
|
|
get type() { throw test_error; }
|
|
});
|
|
});
|
|
assert_throws(test_error, function() {
|
|
new Blob([], {
|
|
type: { toString: function() { throw test_error; } }
|
|
});
|
|
});
|
|
}, "options properties should be accessed in lexicographic order.");
|
|
|
|
test(function() {
|
|
assert_throws(test_error, function() {
|
|
new Blob(
|
|
[{ toString: function() { throw test_error } }],
|
|
{
|
|
get type() { assert_unreached("type getter should not be called."); }
|
|
}
|
|
);
|
|
});
|
|
}, "Arguments should be evaluated from left to right.");
|
|
|
|
[
|
|
null,
|
|
undefined,
|
|
{},
|
|
{ unrecognized: true },
|
|
/regex/,
|
|
function() {}
|
|
].forEach(function(arg, idx) {
|
|
test_blob(function() {
|
|
return new Blob([], arg);
|
|
}, {
|
|
expected: "",
|
|
type: "",
|
|
desc: "Passing " + format_value(arg) + " (index " + idx + ") for options should use the defaults."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob(["\na\r\nb\n\rc\r"], arg);
|
|
}, {
|
|
expected: "\na\r\nb\n\rc\r",
|
|
type: "",
|
|
desc: "Passing " + format_value(arg) + " (index " + idx + ") for options should use the defaults (with newlines)."
|
|
});
|
|
});
|
|
|
|
test_blob(function() {
|
|
return new Blob(["\na\r\nb\n\rc\r"], { endings: "transparent" });
|
|
}, {
|
|
expected: "\na\r\nb\n\rc\r",
|
|
type: "",
|
|
desc: "Newlines should not change when endings is 'transparent'."
|
|
});
|
|
test_blob(function() {
|
|
return new Blob(["\na\r\nb\n\rc\r"], { endings: "native" });
|
|
}, {
|
|
expected: "\na\r\nb\n\rc\r",
|
|
type: "",
|
|
desc: "Newlines should not change when endings is 'native'."
|
|
});
|
|
|
|
var type_tests = [
|
|
// blobParts, type, expected type
|
|
[[], '', ''],
|
|
[[], 'a', 'a'],
|
|
[[], 'A', 'a'],
|
|
[[], 'text/html', 'text/html'],
|
|
[[], 'TEXT/HTML', 'text/html'],
|
|
[[], '\u00E5', ''],
|
|
[[], '\uD801\uDC7E', ''], // U+1047E
|
|
[[], ' image/gif ', ' image/gif '],
|
|
[[], '\timage/gif\t', ''],
|
|
[[], 'image/gif;\u007f', ''],
|
|
[[], '\u0130mage/gif', ''], // uppercase i with dot
|
|
[[], '\u0131mage/gif', ''], // lowercase dotless i
|
|
[[], 'image/gif\u0000', ''],
|
|
// check that type isn't changed based on sniffing
|
|
[[0x3C, 0x48, 0x54, 0x4D, 0x4C, 0x3E], 'unknown/unknown', 'unknown/unknown'], // "<HTML>"
|
|
[[0x00, 0xFF], 'text/plain', 'text/plain'],
|
|
[[0x47, 0x49, 0x46, 0x38, 0x39, 0x61], 'image/png', 'image/png'], // "GIF89a"
|
|
];
|
|
|
|
type_tests.forEach(function(t) {
|
|
test(function() {
|
|
var arr = new Uint8Array([t[0]]).buffer;
|
|
var b = new Blob([arr], {type:t[1]});
|
|
assert_equals(b.type, t[2]);
|
|
}, "Blob with type " + format_value(t[1]));
|
|
});
|
|
</script>
|