third_party/WebKit/LayoutTests/fast/files/blob-constructor.html

   1 <!DOCTYPE html>
   2
   3 <script src="../../resources/js-test.js"></script>
   4 <script>
   5 description("Test the Blob constructor.");
   6 var jsTestIsAsync = true;
   7
   8 // Test the different ways you can construct a Blob.
   9 shouldBeTrue("(new Blob()) instanceof window.Blob");
  10 shouldBeTrue("(new Blob([])) instanceof window.Blob");
  11 shouldBeTrue("(new Blob(['hello'])) instanceof window.Blob");
  12 shouldBeTrue("(new Blob(['hello'], {})) instanceof window.Blob");
  13 shouldBeTrue("(new Blob(['hello'], {type:'text/html'})) instanceof window.Blob");
  14 shouldBeTrue("(new Blob(['hello'], {type:'text/html', endings:'native'})) instanceof window.Blob");
  15 shouldBeTrue("(new Blob(['hello'], {type:'text/html', endings:'transparent'})) instanceof window.Blob");
  16
  17 // Test invalid blob parts.
  18 shouldThrow("new Blob('hello')", '"TypeError: Failed to construct \'Blob\': The 1st argument is neither an array, nor does it have indexed properties."');
  19 shouldThrow("new Blob(0)", '"TypeError: Failed to construct \'Blob\': The 1st argument is neither an array, nor does it have indexed properties."');
  20 shouldThrow("new Blob(null)", '"TypeError: Failed to construct \'Blob\': The 1st argument is neither an array, nor does it have indexed properties."');
  21
  22 // Test valid blob parts.
  23 shouldBeTrue("(new Blob([])) instanceof window.Blob");
  24 shouldBeTrue("(new Blob(['stringPrimitive'])) instanceof window.Blob");
  25 shouldBeTrue("(new Blob([String('stringObject')])) instanceof window.Blob");
  26 shouldBeTrue("(new Blob([new Blob])) instanceof window.Blob");
  27 shouldBeTrue("(new Blob([new Blob([new Blob])])) instanceof window.Blob");
  28
  29 // Test some conversions to string in the parts array.
  30 shouldBe("(new Blob([12])).size", "2");
  31 shouldBe("(new Blob([[]])).size", "0");         // [].toString() is the empty string
  32 shouldBe("(new Blob([{}])).size", "15");;       // {}.toString() is the string "[object Object]"
  33 shouldBe("(new Blob([document])).size", "21");  // document.toString() is the string "[object HTMLDocument]"
  34
  35 var toStringingObj = { toString: function() { return "A string"; } };
  36 shouldBe("(new Blob([toStringingObj])).size", "8");
  37
  38 var throwingObj = { toString: function() { throw "Error"; } };
  39 shouldThrow("new Blob([throwingObj])", "'Error'");
  40
  41 // Test some invalid property bags.
  42 shouldBeTrue("(new Blob([], {unknownKey:'value'})) instanceof window.Blob");    // Ignore invalid keys
  43 shouldThrow("new Blob([], {endings:'illegalValue'})", "'TypeError: Failed to construct \\'Blob\\': The provided value \\'illegalValue\\' is not a valid enum value of type NormalizeLineEndings.'");
  44 shouldThrow("new Blob([], {endings:throwingObj})", "'Error'");
  45 shouldThrow("new Blob([], {type:throwingObj})", "'Error'");
  46 shouldThrow("new Blob([], {type:'hello\u00EE'})", "'SyntaxError: Failed to construct \\'Blob\\': The \\'type\\' property must consist of ASCII characters.'");
  47
  48 // Test that order of property bag evaluation is lexigraphical
  49 var throwingObj1 = { toString: function() { throw "Error 1"; } };
  50 var throwingObj2 = { toString: function() { throw "Error 2"; } };
  51 shouldThrow("new Blob([], {endings:throwingObj1, type:throwingObj2})", "'Error 1'");
  52 shouldThrow("new Blob([], {type:throwingObj2, endings:throwingObj1})", "'Error 1'");
  53 shouldThrow("new Blob([], {type:throwingObj2, endings:'illegal'})", "'TypeError: Failed to construct \\'Blob\\': The provided value \\'illegal\\' is not a valid enum value of type NormalizeLineEndings.'");
  54
  55 // Test various non-object literals being used as property bags.
  56 shouldBeTrue("(new Blob([], null)) instanceof window.Blob");
  57 shouldBeTrue("(new Blob([], undefined)) instanceof window.Blob");
  58 shouldThrow("(new Blob([], 123)) instanceof window.Blob", "'TypeError: Failed to construct \\'Blob\\': parameter 2 (\\'options\\') is not an object.'");
  59 shouldThrow("(new Blob([], 123.4)) instanceof window.Blob", "'TypeError: Failed to construct \\'Blob\\': parameter 2 (\\'options\\') is not an object.'");
  60 shouldThrow("(new Blob([], true)) instanceof window.Blob", "'TypeError: Failed to construct \\'Blob\\': parameter 2 (\\'options\\') is not an object.'");
  61 shouldThrow("(new Blob([], 'abc')) instanceof window.Blob", "'TypeError: Failed to construct \\'Blob\\': parameter 2 (\\'options\\') is not an object.'");
  62 shouldBeTrue("(new Blob([], [])) instanceof window.Blob");
  63 shouldBeTrue("(new Blob([], /abc/)) instanceof window.Blob");
  64 shouldBeTrue("(new Blob([], function () {})) instanceof window.Blob");
  65
  66 // Test that the type/size is correctly added to the Blob.
  67 shouldBe("(new Blob([], {type:'text/html'})).type", "'text/html'");
  68 shouldBe("(new Blob([], {type:'text/html'})).size", "0");
  69 shouldBe("(new Blob([], {type:'text/plain;charset=UTF-8'})).type", "'text/plain;charset=utf-8'");
  70
  71 // Test that the File-specific lastModified is not set by the Blob constructor.
  72 shouldBe("(new Blob([])).lastModified", "undefined");
  73 shouldBe("(new Blob([], {})).lastModified", "undefined");
  74 shouldBe("(new Blob([], {lastModified: new Date()})).lastModified", "undefined");
  75
  76 // Test the number of expected arguments in the Blob constructor.
  77 shouldBe("window.Blob.length", "0");
  78
  79 // Test ArrayBufferView parameters.
  80 shouldBe("new Blob([new DataView(new ArrayBuffer(100))]).size", "100");
  81 shouldBe("new Blob([new Uint8Array(100)]).size", "100");
  82 shouldBe("new Blob([new Uint8ClampedArray(100)]).size", "100");
  83 shouldBe("new Blob([new Uint16Array(100)]).size", "200");
  84 shouldBe("new Blob([new Uint32Array(100)]).size", "400");
  85 shouldBe("new Blob([new Int8Array(100)]).size", "100");
  86 shouldBe("new Blob([new Int16Array(100)]).size", "200");
  87 shouldBe("new Blob([new Int32Array(100)]).size", "400");
  88 shouldBe("new Blob([new Float32Array(100)]).size", "400");
  89 shouldBe("new Blob([new Float64Array(100)]).size", "800");
  90 shouldBe("new Blob([new Float64Array(100), new Int32Array(100), new Uint8Array(100), new DataView(new ArrayBuffer(100))]).size", "1400");
  91 shouldBe("new Blob([new Blob([new Int32Array(100)]), new Uint8Array(100), new Float32Array(100), new DataView(new ArrayBuffer(100))]).size", "1000");
  92
  93 // Test ArrayBuffer parameters.
  94 shouldBe("new Blob([(new DataView(new ArrayBuffer(100))).buffer]).size", "100");
  95 shouldBe("new Blob([(new Uint8Array(100)).buffer]).size", "100");
  96 shouldBe("new Blob([(new Uint8ClampedArray(100)).buffer]).size", "100");
  97 shouldBe("new Blob([(new Uint16Array(100)).buffer]).size", "200");
  98 shouldBe("new Blob([(new Uint32Array(100)).buffer]).size", "400");
  99 shouldBe("new Blob([(new Int8Array(100)).buffer]).size", "100");
 100 shouldBe("new Blob([(new Int16Array(100)).buffer]).size", "200");
 101 shouldBe("new Blob([(new Int32Array(100)).buffer]).size", "400");
 102 shouldBe("new Blob([(new Float32Array(100)).buffer]).size", "400");
 103 shouldBe("new Blob([(new Float64Array(100)).buffer]).size", "800");
 104 shouldBe("new Blob([(new Float64Array(100)).buffer, (new Int32Array(100)).buffer, (new Uint8Array(100)).buffer, (new DataView(new ArrayBuffer(100))).buffer]).size", "1400");
 105 shouldBe("new Blob([new Blob([(new Int32Array(100)).buffer]), (new Uint8Array(100)).buffer, (new Float32Array(100)).buffer, (new DataView(new ArrayBuffer(100))).buffer]).size", "1000");
 106
 107 // Test passing blob parts in objects with indexed properties.
 108 // (This depends on the bindings code handling of sequence<T>)
 109 shouldBe("new Blob({length: 0}).size", "0");
 110 shouldBe("new Blob({length: 1, 0: 'string'}).size", "6");
 111
 112 // Test that strings are not NFC normalized
 113 var OMICRON_WITH_OXIA = '\u1F79'; // NFC normalized to U+3CC
 114 shouldBe("OMICRON_WITH_OXIA.charCodeAt(0)", "0x1F79");
 115 var reader = new FileReader();
 116 reader.readAsText(new Blob([OMICRON_WITH_OXIA]));
 117 reader.onload = function() {
 118     shouldBe("reader.result.charCodeAt(0)", "0x1F79");
 119     finishJSTest();
 120 };
 121 </script>