The Tor Browser: dom/encoding/test/test_TextEncoder.js@b8a032363ba2 (annotated)

dom/encoding/test/test_TextEncoder.js@b8a032363ba2 (annotated)

dom/encoding/test/test_TextEncoder.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /*
  * test_TextEncoder.js
  * bug 764234 tests
 */
 function runTextEncoderTests()
 {
   var data = "\u00a0\u0e01\u0e02\u0e03\u0e04\u0e05\u0e06\u0e07\u0e08\u0e09"
         + "\u0e0a\u0e0b\u0e0c\u0e0d\u0e0e\u0e0f\u0e10\u0e11\u0e12\u0e13\u0e14"
         + "\u0e15\u0e16\u0e17\u0e18\u0e19\u0e1a\u0e1b\u0e1c\u0e1d\u0e1e\u0e1f"
         + "\u0e20\u0e21\u0e22\u0e23\u0e24\u0e25\u0e26\u0e27\u0e28\u0e29\u0e2a"
         + "\u0e2b\u0e2c\u0e2d\u0e2e\u0e2f\u0e30\u0e31\u0e32\u0e33\u0e34\u0e35"
         + "\u0e36\u0e37\u0e38\u0e39\u0e3a\u0e3f\u0e40\u0e41\u0e42\u0e43\u0e44"
         + "\u0e45\u0e46\u0e47\u0e48\u0e49\u0e4a\u0e4b\u0e4c\u0e4d\u0e4e\u0e4f"
         + "\u0e50\u0e51\u0e52\u0e53\u0e54\u0e55\u0e56\u0e57\u0e58\u0e59\u0e5a"
         + "\u0e5b";
   var expectedString = [0xC2, 0xA0, 0xE0, 0xB8, 0x81, 0xE0, 0xB8, 0x82, 0xE0,
 xB8, 0x83, 0xE0, 0xB8, 0x84, 0xE0, 0xB8, 0x85, 0xE0,
 xB8, 0x86, 0xE0, 0xB8, 0x87, 0xE0, 0xB8, 0x88, 0xE0,
 xB8, 0x89, 0xE0, 0xB8, 0x8A, 0xE0, 0xB8, 0x8B, 0xE0,
 xB8, 0x8C, 0xE0, 0xB8, 0x8D, 0xE0, 0xB8, 0x8E, 0xE0,
 xB8, 0x8F, 0xE0, 0xB8, 0x90, 0xE0, 0xB8, 0x91, 0xE0,
 xB8, 0x92, 0xE0, 0xB8, 0x93, 0xE0, 0xB8, 0x94, 0xE0,
 xB8, 0x95, 0xE0, 0xB8, 0x96, 0xE0, 0xB8, 0x97, 0xE0,
 xB8, 0x98, 0xE0, 0xB8, 0x99, 0xE0, 0xB8, 0x9A, 0xE0,
 xB8, 0x9B, 0xE0, 0xB8, 0x9C, 0xE0, 0xB8, 0x9D, 0xE0,
 xB8, 0x9E, 0xE0, 0xB8, 0x9F, 0xE0, 0xB8, 0xA0, 0xE0,
 xB8, 0xA1, 0xE0, 0xB8, 0xA2, 0xE0, 0xB8, 0xA3, 0xE0,
 xB8, 0xA4, 0xE0, 0xB8, 0xA5, 0xE0, 0xB8, 0xA6, 0xE0,
 xB8, 0xA7, 0xE0, 0xB8, 0xA8, 0xE0, 0xB8, 0xA9, 0xE0,
 xB8, 0xAA, 0xE0, 0xB8, 0xAB, 0xE0, 0xB8, 0xAC, 0xE0,
 xB8, 0xAD, 0xE0, 0xB8, 0xAE, 0xE0, 0xB8, 0xAF, 0xE0,
 xB8, 0xB0, 0xE0, 0xB8, 0xB1, 0xE0, 0xB8, 0xB2, 0xE0,
 xB8, 0xB3, 0xE0, 0xB8, 0xB4, 0xE0, 0xB8, 0xB5, 0xE0,
 xB8, 0xB6, 0xE0, 0xB8, 0xB7, 0xE0, 0xB8, 0xB8, 0xE0,
 xB8, 0xB9, 0xE0, 0xB8, 0xBA, 0xE0, 0xB8, 0xBF, 0xE0,
 xB9, 0x80, 0xE0, 0xB9, 0x81, 0xE0, 0xB9, 0x82, 0xE0,
 xB9, 0x83, 0xE0, 0xB9, 0x84, 0xE0, 0xB9, 0x85, 0xE0,
 xB9, 0x86, 0xE0, 0xB9, 0x87, 0xE0, 0xB9, 0x88, 0xE0,
 xB9, 0x89, 0xE0, 0xB9, 0x8A, 0xE0, 0xB9, 0x8B, 0xE0,
 xB9, 0x8C, 0xE0, 0xB9, 0x8D, 0xE0, 0xB9, 0x8E, 0xE0,
 xB9, 0x8F, 0xE0, 0xB9, 0x90, 0xE0, 0xB9, 0x91, 0xE0,
 xB9, 0x92, 0xE0, 0xB9, 0x93, 0xE0, 0xB9, 0x94, 0xE0,
 xB9, 0x95, 0xE0, 0xB9, 0x96, 0xE0, 0xB9, 0x97, 0xE0,
 xB9, 0x98, 0xE0, 0xB9, 0x99, 0xE0, 0xB9, 0x9A, 0xE0,
 xB9, 0x9B];
   test(testEncoderGetEncoding, "testEncoderGetEncoding");
   test(testInvalidSequence, "testInvalidSequence");
   test(testEncodeUTF16ToUTF16, "testEncodeUTF16ToUTF16");
   test(function() {
     testConstructorEncodingOption(data, expectedString)
   }, "testConstructorEncodingOption");
   test(function() {
     testEncodingValues(data, expectedString)
   }, "testEncodingValues");
   test(function() {
     testInputString(data, expectedString)
   }, "testInputString");
   test(testStreamingOptions, "testStreamingOptions");
 }
 function testInvalidSequence()
 {
   var data = "\u0e43\u0e44\ufffd\u0e45";
   var expectedString = [0xE0, 0xB9, 0x83, 0xE0, 0xB9, 0x84, 0xEF, 0xBF, 0xBD,
 xE0, 0xB9, 0x85];
   //Test null input string
   testSingleString({encoding: "utf-8", input: data, expected: expectedString,
     msg: "encoder with replacement character test."});
 }
 function testEncodeUTF16ToUTF16()
 {
   var data = "\u0e43\u0e44\u0e45\u0e46\u0e47\u0e48\u0e49\u0e4a\u0e4b\u0e4c"
              + "\u0e4d\u0e4e\u0e4f\u0e50\u0e51\u0e52\u0e53\u0e54\u0e55\u0e56"
              + "\u0e57\u0e58\u0e59\u0e5a\u0e5b";
   var expected = [0x43, 0x0E, 0x44, 0x0E, 0x45, 0x0E, 0x46, 0x0E, 0x47, 0x0E,
 x48, 0x0E, 0x49, 0x0E, 0x4A, 0x0E, 0x4B, 0x0E, 0x4C, 0x0E,
 x4D, 0x0E, 0x4E, 0x0E, 0x4F, 0x0E, 0x50, 0x0E, 0x51, 0x0E,
 x52, 0x0E, 0x53, 0x0E, 0x54, 0x0E, 0x55, 0x0E, 0x56, 0x0E,
 x57, 0x0E, 0x58, 0x0E, 0x59, 0x0E, 0x5A, 0x0E, 0x5B, 0x0E];
   testSingleString({encoding: "Utf-16", input: data, expected: expected,
     msg: "testing encoding from utf-16 to utf-16 zero."});
 }
 function testConstructorEncodingOption(aData, aExpectedString)
 {
   // valid encoding passed
   testSingleString({encoding: "UTF-8", input: aData, expected: aExpectedString,
     msg: "testing encoding with valid utf-8 encoding."});
   // passing spaces for encoding
   testSingleString({encoding: "   ", input: aData, error: "TypeError",
     msg: "constructor encoding, spaces encoding test."});
   // invalid encoding passed
   testSingleString({encoding: "asdfasdf", input: aData, error: "TypeError",
     msg: "constructor encoding, invalid encoding test."});
   // null encoding passed
   testSingleString({encoding: null, input: aData, error: "TypeError",
     msg: "constructor encoding, \"null\" encoding test."});
   // null encoding passed
   testSingleString({encoding: "", input: aData, error: "TypeError",
     msg: "constructor encoding, empty encoding test."});
 }
 function testEncodingValues(aData, aExpectedString)
 {
   var encoding = "ISO-8859-11";
   testSingleString({encoding: aData, input: encoding, error: "TypeError",
     msg: "encoder encoding values test."});
 }
 function testInputString(aData, aExpectedString)
 {
   //Test null input string
   testSingleString({encoding: "utf-8", input: "", expected: [],
     msg: "encoder null input string test."});
   //Test spaces as input string
   testSingleString({encoding: "utf-8", input: "  ", expected: [32, 32],
     msg: "spaces as input string."});
 }
 function testSingleString(test)
 {
   var outText;
   try {
     var stream = test.stream ? {stream: true} : null;
     outText = (new TextEncoder(test.encoding)).encode(test.input, stream);
   } catch (e) {
     assert_equals(e.name, test.error, test.msg);
     return;
   }
   assert_true(!test.error, test.msg);
   if (outText.length !== test.expected.length) {
     assert_equals(outText.length, test.expected.length, test.msg + " length mismatch");
     return;
   }
   for (var i = 0; i < outText.length; i++) {
     if (outText[i] != test.expected[i]) {
       assert_equals(escape(stringFromArray(outText.buffer)), escape(stringFromArray(test.expected)),
                     test.msg + " Bytes do not match expected bytes.");
       return;
     }
   }
 }
 function stringFromArray(a) {
   return Array.map.call(a, function(v){return String.fromCharCode(v)}).join('');
 }
 function testStreamingOptions()
 {
   var data = [
     "\u00a0\u0e01\u0e02\u0e03\u0e04\u0e05\u0e06\u0e07\u0e08\u0e09\u0e0a"
     + "\u0e0b\u0e0c\u0e0d\u0e0e\u0e0f\u0e10\u0e11\u0e12\u0e13\u0e14"
     + "\u0e15\u0e16\u0e17\u0e18\u0e19\u0e1a\u0e1b\u0e1c\u0e1d",
     "\u0e1e\u0e1f\u0e20\u0e21\u0e22\u0e23\u0e24\u0e25\u0e26\u0e27\u0e28"
     + "\u0e29\u0e2a\u0e2b\u0e2c\u0e2d\u0e2e\u0e2f\u0e30\u0e31\u0e32"
     + "\u0e33\u0e34\u0e35\u0e36\u0e37\u0e38\u0e39\u0e3a\u0e3f\u0e40"
     + "\u0e41\u0e42",
     "\u0e43\u0e44\u0e45\u0e46\u0e47\u0e48\u0e49\u0e4a\u0e4b\u0e4c\u0e4d"
     + "\u0e4e\u0e4f\u0e50\u0e51\u0e52\u0e53\u0e54\u0e55\u0e56\u0e57"
     + "\u0e58\u0e59\u0e5a\u0e5b"
   ];
   var expected = [[0xC2, 0xA0, 0xE0, 0xB8, 0x81, 0xE0, 0xB8, 0x82, 0xE0,
 xB8, 0x83, 0xE0, 0xB8, 0x84, 0xE0, 0xB8, 0x85, 0xE0,
 xB8, 0x86, 0xE0, 0xB8, 0x87, 0xE0, 0xB8, 0x88, 0xE0,
 xB8, 0x89, 0xE0, 0xB8, 0x8A, 0xE0, 0xB8, 0x8B, 0xE0,
 xB8, 0x8C, 0xE0, 0xB8, 0x8D, 0xE0, 0xB8, 0x8E, 0xE0,
 xB8, 0x8F, 0xE0, 0xB8, 0x90, 0xE0, 0xB8, 0x91, 0xE0,
 xB8, 0x92, 0xE0, 0xB8, 0x93, 0xE0, 0xB8, 0x94, 0xE0,
 xB8, 0x95, 0xE0, 0xB8, 0x96, 0xE0, 0xB8, 0x97, 0xE0,
 xB8, 0x98, 0xE0, 0xB8, 0x99, 0xE0, 0xB8, 0x9A, 0xE0,
 xB8, 0x9B, 0xE0, 0xB8, 0x9C, 0xE0, 0xB8, 0x9D],
                   [0xE0, 0xB8, 0x9E, 0xE0, 0xB8, 0x9F, 0xE0, 0xB8, 0xA0,
 xE0, 0xB8, 0xA1, 0xE0, 0xB8, 0xA2, 0xE0, 0xB8, 0xA3,
 xE0, 0xB8, 0xA4, 0xE0, 0xB8, 0xA5, 0xE0, 0xB8, 0xA6,
 xE0, 0xB8, 0xA7, 0xE0, 0xB8, 0xA8, 0xE0, 0xB8, 0xA9,
 xE0, 0xB8, 0xAA, 0xE0, 0xB8, 0xAB, 0xE0, 0xB8, 0xAC,
 xE0, 0xB8, 0xAD, 0xE0, 0xB8, 0xAE, 0xE0, 0xB8, 0xAF,
 xE0, 0xB8, 0xB0, 0xE0, 0xB8, 0xB1, 0xE0, 0xB8, 0xB2,
 xE0, 0xB8, 0xB3, 0xE0, 0xB8, 0xB4, 0xE0, 0xB8, 0xB5,
 xE0, 0xB8, 0xB6, 0xE0, 0xB8, 0xB7, 0xE0, 0xB8, 0xB8,
 xE0, 0xB8, 0xB9, 0xE0, 0xB8, 0xBA, 0xE0, 0xB8, 0xBF,
 xE0, 0xB9, 0x80, 0xE0, 0xB9, 0x81, 0xE0, 0xB9, 0x82],
                   [0xE0, 0xB9, 0x83, 0xE0, 0xB9, 0x84, 0xE0, 0xB9, 0x85,
 xE0, 0xB9, 0x86, 0xE0, 0xB9, 0x87, 0xE0, 0xB9, 0x88,
 xE0, 0xB9, 0x89, 0xE0, 0xB9, 0x8A, 0xE0, 0xB9, 0x8B,
 xE0, 0xB9, 0x8C, 0xE0, 0xB9, 0x8D, 0xE0, 0xB9, 0x8E,
 xE0, 0xB9, 0x8F, 0xE0, 0xB9, 0x90, 0xE0, 0xB9, 0x91,
 xE0, 0xB9, 0x92, 0xE0, 0xB9, 0x93, 0xE0, 0xB9, 0x94,
 xE0, 0xB9, 0x95, 0xE0, 0xB9, 0x96, 0xE0, 0xB9, 0x97,
 xE0, 0xB9, 0x98, 0xE0, 0xB9, 0x99, 0xE0, 0xB9, 0x9A,
 xE0, 0xB9, 0x9B]];
   var expectedUTF16 = data.map(function(d) {
     return new Uint8Array(new Uint16Array(arrayFromString(d)).buffer);
   });
   // STREAMING TEST ONE: test streaming three valid strings with stream option
   // set to true for all three.
   testArrayOfStrings({encoding: "utf-8", array: [
     {input: data[0], stream: true, expected: expected[0]},
     {input: data[1], stream: true, expected: expected[1]},
     {input: data[2], stream: true, expected: expected[2]},
   ], msg: "streaming test one."});
   // STREAMING TEST TWO: test streaming valid strings with stream option
   // streaming option: false from constructor, string 1 stream: true,
   // string 2 stream: false, string 3 stream: false
   testArrayOfStrings({encoding: "utf-16", array: [
     {input: data[0], stream: true, expected: expectedUTF16[0]},
     {input: data[1], expected: expectedUTF16[1]},
     {input: data[2], expected: expectedUTF16[2]},
   ], msg: "streaming test two."});
 }
 function arrayFromString(s) {
   return s.split('').map(function(c){return String.charCodeAt(c)});
 }
 function testArrayOfStrings(test)
 {
   var encoder;
   try {
     encoder = new TextEncoder(test.encoding);
   } catch (e) {
     assert_equals(e.name, test.error, test.msg);
     return;
   }
   assert_true(!test.error, test.msg);
   var array = test.array;
   for (var i = 0; i < array.length; i += 1) {
     var stream = array[i].stream ? {stream: true} : null;
     var view = encoder.encode(array[i].input, stream);
     var stringLen = view.length;
     var expected = array[i].expected;
     for (var j = 0; j < stringLen; j++) {
       if (view[j] !== expected[j]) {
         assert_equals(view[j], expected[j], msg + " Bytes do not match expected bytes.");
         return;
       }
     }
   }
 }
 function testEncoderGetEncoding()
 {
   var labelEncodings = [
     {encoding: "utf-8", labels: ["unicode-1-1-utf-8", "utf-8", "utf8"]},
     {encoding: "utf-16le", labels: ["utf-16", "utf-16"]},
     {encoding: "utf-16be", labels: ["utf-16be"]},
   ];
   for (var le of labelEncodings) {
     for (var label of le.labels) {
       var encoder = new TextEncoder(label);
       assert_equals(encoder.encoding, le.encoding, label + " label encoding test.");
     }
   }
 }