Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 994 insertions, 0 deletions

diff --git a/dom/encoding/test/test_TextDecoder.js b/dom/encoding/test/test_TextDecoder.js
new file mode 100644
index 0000000000..d77456894c
--- /dev/null
+++ b/dom/encoding/test/test_TextDecoder.js
@@ -0,0 +1,994 @@
+/*
+ * test_TextDecoderOptions.js
+ * bug 764234 tests
+ */
+
+function runTextDecoderOptions() {
+  const data = [
+    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab,
+    0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+    0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3,
+    0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
+    0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdf,
+    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb,
+    0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+    0xf8, 0xf9, 0xfa, 0xfb,
+  ];
+
+  const expectedString =
+    "\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";
+
+  test(testDecoderGetEncoding, "testDecoderGetEncoding");
+  test(testDecodeGreek, "testDecodeGreek");
+  test(function () {
+    testConstructorFatalOption(data, expectedString);
+  }, "testConstructorFatalOption");
+  test(function () {
+    testConstructorEncodingOption(data, expectedString);
+  }, "testConstructorEncodingOption");
+  test(function () {
+    testDecodeStreamOption(data, expectedString);
+  }, "testDecodeStreamOption");
+  test(testDecodeStreamCompositions, "testDecodeStreamCompositions");
+  test(function () {
+    testDecodeABVOption(data, expectedString);
+  }, "testDecodeABVOption");
+  test(testDecoderForThaiEncoding, "testDecoderForThaiEncoding");
+  test(testInvalid2022JP, "testInvalid2022JP");
+  test(testDecoderForBig5, "testDecoderForBig5");
+}
+
+/*
+ * function testConstructor()
+ *
+ * - This function tests the constructor optional arguments.
+ * - Stream option remains null for this test.
+ * - The stream option is passed to the decode function.
+ * - This function is not testing the decode function.
+ *
+ */
+function testConstructorFatalOption(data, expectedString) {
+  //invalid string to decode passed, fatal = false
+  testCharset({
+    fatal: false,
+    encoding: "iso-8859-11",
+    input: [],
+    expected: "",
+    msg: "constructor fatal option set to false test.",
+  });
+
+  //invalid string to decode passed, fatal = true
+  testCharset({
+    fatal: true,
+    encoding: "iso-8859-11",
+    input: [],
+    expected: "",
+    msg: "constructor fatal option set to true test.",
+  });
+}
+
+function testConstructorEncodingOption(aData, aExpectedString) {
+  function errorMessage(encoding) {
+    return `TextDecoder constructor: The given encoding '${String(
+      encoding
+    ).trim()}' is not supported.`;
+  }
+
+  // valid encoding passed
+  var encoding = "iso-8859-11";
+  testCharset({
+    encoding,
+    input: aData,
+    expected: aExpectedString,
+    msg: "decoder testing constructor valid encoding.",
+  });
+
+  // passing spaces for encoding
+  encoding = "   ";
+  testCharset({
+    encoding,
+    input: aData,
+    error: "RangeError",
+    errorMessage: errorMessage(encoding),
+    msg: "constructor encoding, spaces encoding test.",
+  });
+
+  // invalid encoding passed
+  encoding = "asdfasdf";
+  testCharset({
+    encoding,
+    input: aData,
+    error: "RangeError",
+    errorMessage: errorMessage(encoding),
+    msg: "constructor encoding, invalid encoding test.",
+  });
+
+  // null encoding passed
+  encoding = null;
+  testCharset({
+    encoding,
+    input: aData,
+    error: "RangeError",
+    errorMessage: errorMessage(encoding),
+    msg: 'constructor encoding, "null" encoding test.',
+  });
+
+  // empty encoding passed
+  encoding = "";
+  testCharset({
+    encoding,
+    input: aData,
+    error: "RangeError",
+    errorMessage: errorMessage(encoding),
+    msg: "constructor encoding, empty encoding test.",
+  });
+
+  // replacement character test
+  aExpectedString =
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd" +
+    "\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd";
+  testCharset({
+    encoding: "utf-8",
+    input: aData,
+    expected: aExpectedString,
+    msg: "constuctor encoding, utf-8 test.",
+  });
+}
+
+/*
+ * function testDecodeStreamOption()
+ *
+ * - fatal remains null for the entire test
+ * - encoding remains as "iso-8859-11"
+ * - The stream option is modified for this test.
+ * - ArrayBufferView is modified for this test.
+ */
+function testDecodeStreamOption(data, expectedString) {
+  const streamData = [
+    [
+      0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab,
+      0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+      0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd,
+    ],
+    [
+      0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
+      0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5,
+      0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdf, 0xe0, 0xe1, 0xe2,
+    ],
+    [
+      0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee,
+      0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa,
+      0xfb,
+    ],
+  ];
+
+  const expectedStringOne =
+    "\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";
+  const expectedStringTwo =
+    "\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";
+  const expectedStringThree =
+    "\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";
+  expectedString = [expectedStringOne, expectedStringTwo, expectedStringThree];
+
+  // streaming test
+
+  /* - the streaming is null
+   *  - streaming is not set in the decode function
+   */
+  testCharset({
+    encoding: "iso-8859-11",
+    array: [
+      { input: streamData[0], expected: expectedStringOne },
+      { input: streamData[1], expected: expectedStringTwo },
+      { input: streamData[2], expected: expectedStringThree },
+    ],
+    msg: "decode() stream test zero.",
+  });
+
+  testCharset({
+    encoding: "iso-8859-11",
+    array: [
+      { input: streamData[0], expected: expectedStringOne, stream: true },
+      { input: streamData[1], expected: expectedStringTwo, stream: true },
+      { input: streamData[2], expected: expectedStringThree, stream: true },
+    ],
+    msg: "decode() stream test one.",
+  });
+
+  testCharset({
+    encoding: "iso-8859-11",
+    array: [
+      { input: streamData[0], expected: expectedStringOne, stream: true },
+      { input: streamData[1], expected: expectedStringTwo },
+      { input: streamData[2], expected: expectedStringThree },
+    ],
+    msg: "decode() stream test two.",
+  });
+
+  testCharset({
+    encoding: "utf-8",
+    array: [
+      { input: [0xc2], expected: "\uFFFD" },
+      { input: [0x80], expected: "\uFFFD" },
+    ],
+    msg: "decode() stream test utf-8.",
+  });
+
+  testCharset({
+    encoding: "utf-8",
+    fatal: true,
+    array: [
+      { input: [0xc2], error: "TypeError" },
+      { input: [0x80], error: "TypeError" },
+    ],
+    msg: "decode() stream test utf-8 fatal.",
+  });
+}
+
+function testDecodeStreamCompositions() {
+  var tests = [
+    { encoding: "utf-8", input: [0xc2, 0x80], expected: ["", "\x80"] },
+    {
+      encoding: "utf-8",
+      input: [0xef, 0xbb, 0xbf, 0xc2, 0x80],
+      expected: ["", "", "", "", "\x80"],
+    },
+    { encoding: "utf-16", input: [0x01, 0x00], expected: ["", "\x01"] },
+    {
+      encoding: "utf-16",
+      input: [0x01, 0x00, 0x03, 0x02],
+      expected: ["", "\x01", "", "\u0203"],
+    },
+    { encoding: "utf-16", input: [0xff, 0xfd], expected: ["", "\uFDFF"] },
+    { encoding: "utf-16", input: [0xff, 0xfe], expected: ["", ""] },
+    { encoding: "utf-16", input: [0xff, 0xff], expected: ["", "\uFFFF"] },
+    {
+      encoding: "utf-16",
+      input: [0xff, 0xfe, 0x01, 0x00],
+      expected: ["", "", "", "\x01"],
+    },
+    {
+      encoding: "utf-16",
+      input: [0xff, 0xfe, 0xff, 0xfe],
+      expected: ["", "", "", "\uFEFF"],
+    },
+    {
+      encoding: "utf-16",
+      input: [0xff, 0xfe, 0xfe, 0xff],
+      expected: ["", "", "", "\uFFFE"],
+    },
+    { encoding: "utf-16", input: [0xfd, 0xfe], expected: ["", "\uFEFD"] },
+    { encoding: "utf-16", input: [0xfd, 0xff], expected: ["", "\uFFFD"] },
+    { encoding: "utf-16", input: [0xfe, 0xfd], expected: ["", "\uFDFE"] },
+    { encoding: "utf-16", input: [0xfe, 0xfe], expected: ["", "\uFEFE"] },
+    { encoding: "utf-16", input: [0xfe, 0xff], expected: ["", "\uFFFE"] },
+    {
+      encoding: "utf-16",
+      input: [0xfe, 0xff, 0x01, 0x00],
+      expected: ["", "\uFFFE", "", "\x01"],
+    },
+    {
+      encoding: "utf-16",
+      input: [0xfe, 0xff, 0xff, 0xfe],
+      expected: ["", "\uFFFE", "", "\uFEFF"],
+    },
+    {
+      encoding: "utf-16",
+      input: [0xfe, 0xff, 0xfe, 0xff],
+      expected: ["", "\uFFFE", "", "\uFFFE"],
+    },
+    { encoding: "utf-16le", input: [0x01, 0x00], expected: ["", "\x01"] },
+    {
+      encoding: "utf-16le",
+      input: [0x01, 0x00, 0x03, 0x02],
+      expected: ["", "\x01", "", "\u0203"],
+    },
+    {
+      encoding: "utf-16le",
+      input: [0xff, 0xfe, 0x01, 0x00],
+      expected: ["", "", "", "\x01"],
+    },
+    {
+      encoding: "utf-16le",
+      input: [0xfe, 0xff, 0x01, 0x00],
+      expected: ["", "\uFFFE", "", "\x01"],
+    },
+    { encoding: "utf-16be", input: [0x01, 0x00], expected: ["", "\u0100"] },
+    {
+      encoding: "utf-16be",
+      input: [0x01, 0x00, 0x03, 0x02],
+      expected: ["", "\u0100", "", "\u0302"],
+    },
+    { encoding: "utf-16be", input: [0xfd, 0xfe], expected: ["", "\uFDFE"] },
+    { encoding: "utf-16be", input: [0xfd, 0xff], expected: ["", "\uFDFF"] },
+    { encoding: "utf-16be", input: [0xfe, 0xfd], expected: ["", "\uFEFD"] },
+    { encoding: "utf-16be", input: [0xfe, 0xfe], expected: ["", "\uFEFE"] },
+    { encoding: "utf-16be", input: [0xfe, 0xff], expected: ["", ""] },
+    {
+      encoding: "utf-16be",
+      input: [0xfe, 0xff, 0x01, 0x00],
+      expected: ["", "", "", "\u0100"],
+    },
+    { encoding: "utf-16be", input: [0xff, 0xfd], expected: ["", "\uFFFD"] },
+    { encoding: "utf-16be", input: [0xff, 0xfe], expected: ["", "\uFFFE"] },
+    { encoding: "utf-16be", input: [0xff, 0xff], expected: ["", "\uFFFF"] },
+    {
+      encoding: "utf-16be",
+      input: [0xff, 0xfe, 0x01, 0x00],
+      expected: ["", "\uFFFE", "", "\u0100"],
+    },
+    { encoding: "shift_jis", input: [0x81, 0x40], expected: ["", "\u3000"] },
+  ];
+  tests.forEach(function (t) {
+    (function generateCompositions(a, n) {
+      a.push(n);
+      var l = a.length - 1;
+      var array = [];
+      for (var i = 0, o = 0; i <= l; i++) {
+        array.push({
+          input: t.input.slice(o, o + a[i]),
+          expected: t.expected.slice(o, (o += a[i])).join(""),
+          stream: i < l,
+        });
+      }
+      testCharset({
+        encoding: t.encoding,
+        array,
+        msg: "decode() stream test " + t.encoding + " " + a.join("-") + ".",
+      });
+      while (a[l] > 1) {
+        a[l]--;
+        generateCompositions(a.slice(0), n - a[l]);
+      }
+    })([], t.input.length);
+  });
+}
+
+/*
+ * function testDecodeABVOption()
+ *
+ * - ABV for ArrayBufferView
+ * - fatal remains null for the entire test
+ * - encoding remains as "iso-8859-11"
+ * - The stream option is modified for this test.
+ * - ArrayBufferView is modified for this test.
+ */
+function testDecodeABVOption(data, expectedString) {
+  // valid data
+  testCharset({
+    encoding: "iso-8859-11",
+    input: data,
+    expected: expectedString,
+    msg: "decode test ABV valid data.",
+  });
+
+  // invalid empty data
+  testCharset({
+    encoding: "iso-8859-11",
+    input: [],
+    expected: "",
+    msg: "decode test ABV empty data.",
+  });
+
+  // spaces
+  testCharset({
+    encoding: "iso-8859-11",
+    input: ["\u0020\u0020"],
+    expected: "\0",
+    msg: "text decoding ABV string test.",
+  });
+
+  testCharset({
+    encoding: "iso-8859-11",
+    input: [""],
+    expected: "\0",
+    msg: "text decoding ABV empty string test.",
+  });
+
+  // null for Array Buffer
+  testCharset({
+    encoding: "iso-8859-11",
+    input: null,
+    error: "TypeError",
+    msg: "text decoding ABV null test.",
+  });
+}
+
+function testDecodeGreek() {
+  var data = [
+    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab,
+    0xac, 0xad, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8,
+    0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4,
+    0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0,
+    0xd1, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd,
+    0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
+    0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5,
+    0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe,
+  ];
+
+  var expectedString =
+    "\u00a0\u2018\u2019\u00a3\u20ac\u20af\u00a6\u00a7\u00a8" +
+    "\u00a9\u037a\u00ab\u00ac\u00ad\u2015\u00b0\u00b1" +
+    "\u00b2\u00b3\u0384\u0385\u0386\u00b7\u0388\u0389" +
+    "\u038a\u00bb\u038c\u00bd\u038e\u038f\u0390\u0391" +
+    "\u0392\u0393\u0394\u0395\u0396\u0397\u0398\u0399" +
+    "\u039a\u039b\u039c\u039d\u039e\u039f\u03a0\u03a1" +
+    "\u03a3\u03a4\u03a5\u03a6\u03a7\u03a8\u03a9\u03aa" +
+    "\u03ab\u03ac\u03ad\u03ae\u03af\u03b0\u03b1\u03b2" +
+    "\u03b3\u03b4\u03b5\u03b6\u03b7\u03b8\u03b9\u03ba" +
+    "\u03bb\u03bc\u03bd\u03be\u03bf\u03c0\u03c1\u03c2" +
+    "\u03c3\u03c4\u03c5\u03c6\u03c7\u03c8\u03c9\u03ca" +
+    "\u03cb\u03cc\u03cd\u03ce";
+
+  testCharset({
+    encoding: "greek",
+    input: data,
+    expected: expectedString,
+    msg: "decode greek test.",
+  });
+}
+
+function testDecoderForThaiEncoding() {
+  // TEST One
+  const data = [
+    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab,
+    0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+    0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3,
+    0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
+    0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdf,
+    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb,
+    0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+    0xf8, 0xf9, 0xfa, 0xfb,
+  ];
+
+  const expectedString =
+    "\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";
+
+  const aliases = ["ISO-8859-11", "iso-8859-11", "iso8859-11", "iso885911"];
+
+  testCharset({
+    encoding: "iso-8859-11",
+    input: data,
+    expected: expectedString,
+    msg: "decoder testing valid ISO-8859-11 encoding.",
+  });
+}
+
+function testDecoderGetEncoding() {
+  var labelEncodings = [
+    { encoding: "utf-8", labels: ["unicode-1-1-utf-8", "utf-8", "utf8"] },
+    { encoding: "ibm866", labels: ["866", "cp866", "csibm866", "ibm866"] },
+    {
+      encoding: "iso-8859-2",
+      labels: [
+        "csisolatin2",
+        "iso-8859-2",
+        "iso-ir-101",
+        "iso8859-2",
+        "iso88592",
+        "iso_8859-2",
+        "iso_8859-2:1987",
+        "l2",
+        "latin2",
+      ],
+    },
+    {
+      encoding: "iso-8859-3",
+      labels: [
+        "csisolatin3",
+        "iso-8859-3",
+        "iso-ir-109",
+        "iso8859-3",
+        "iso88593",
+        "iso_8859-3",
+        "iso_8859-3:1988",
+        "l3",
+        "latin3",
+      ],
+    },
+    {
+      encoding: "iso-8859-4",
+      labels: [
+        "csisolatin4",
+        "iso-8859-4",
+        "iso-ir-110",
+        "iso8859-4",
+        "iso88594",
+        "iso_8859-4",
+        "iso_8859-4:1988",
+        "l4",
+        "latin4",
+      ],
+    },
+    {
+      encoding: "iso-8859-5",
+      labels: [
+        "csisolatincyrillic",
+        "cyrillic",
+        "iso-8859-5",
+        "iso-ir-144",
+        "iso8859-5",
+        "iso88595",
+        "iso_8859-5",
+        "iso_8859-5:1988",
+      ],
+    },
+    {
+      encoding: "iso-8859-6",
+      labels: [
+        "arabic",
+        "asmo-708",
+        "csiso88596e",
+        "csiso88596i",
+        "csisolatinarabic",
+        "ecma-114",
+        "iso-8859-6",
+        "iso-8859-6-e",
+        "iso-8859-6-i",
+        "iso-ir-127",
+        "iso8859-6",
+        "iso88596",
+        "iso_8859-6",
+        "iso_8859-6:1987",
+      ],
+    },
+    {
+      encoding: "iso-8859-7",
+      labels: [
+        "csisolatingreek",
+        "ecma-118",
+        "elot_928",
+        "greek",
+        "greek8",
+        "iso-8859-7",
+        "iso-ir-126",
+        "iso8859-7",
+        "iso88597",
+        "iso_8859-7",
+        "iso_8859-7:1987",
+        "sun_eu_greek",
+      ],
+    },
+    {
+      encoding: "iso-8859-8",
+      labels: [
+        "csiso88598e",
+        "csisolatinhebrew",
+        "hebrew",
+        "iso-8859-8",
+        "iso-8859-8-e",
+        "iso-ir-138",
+        "iso8859-8",
+        "iso88598",
+        "iso_8859-8",
+        "iso_8859-8:1988",
+        "visual",
+      ],
+    },
+    {
+      encoding: "iso-8859-8-i",
+      labels: ["csiso88598i", "iso-8859-8-i", "logical"],
+    },
+    {
+      encoding: "iso-8859-10",
+      labels: [
+        "csisolatin6",
+        "iso-8859-10",
+        "iso-ir-157",
+        "iso8859-10",
+        "iso885910",
+        "l6",
+        "latin6",
+      ],
+    },
+    {
+      encoding: "iso-8859-13",
+      labels: ["iso-8859-13", "iso8859-13", "iso885913"],
+    },
+    {
+      encoding: "iso-8859-14",
+      labels: ["iso-8859-14", "iso8859-14", "iso885914"],
+    },
+    {
+      encoding: "iso-8859-15",
+      labels: [
+        "csisolatin9",
+        "iso-8859-15",
+        "iso8859-15",
+        "iso885915",
+        "iso_8859-15",
+        "l9",
+      ],
+    },
+    { encoding: "iso-8859-16", labels: ["iso-8859-16"] },
+    {
+      encoding: "koi8-r",
+      labels: ["cskoi8r", "koi", "koi8", "koi8-r", "koi8_r"],
+    },
+    { encoding: "koi8-u", labels: ["koi8-u"] },
+    {
+      encoding: "macintosh",
+      labels: ["csmacintosh", "mac", "macintosh", "x-mac-roman"],
+    },
+    {
+      encoding: "windows-874",
+      labels: [
+        "dos-874",
+        "iso-8859-11",
+        "iso8859-11",
+        "iso885911",
+        "tis-620",
+        "windows-874",
+      ],
+    },
+    {
+      encoding: "windows-1250",
+      labels: ["cp1250", "windows-1250", "x-cp1250"],
+    },
+    {
+      encoding: "windows-1251",
+      labels: ["cp1251", "windows-1251", "x-cp1251"],
+    },
+    {
+      encoding: "windows-1252",
+      labels: [
+        "ansi_x3.4-1968",
+        "ascii",
+        "cp1252",
+        "cp819",
+        "csisolatin1",
+        "ibm819",
+        "iso-8859-1",
+        "iso-ir-100",
+        "iso8859-1",
+        "iso88591",
+        "iso_8859-1",
+        "iso_8859-1:1987",
+        "l1",
+        "latin1",
+        "us-ascii",
+        "windows-1252",
+        "x-cp1252",
+      ],
+    },
+    {
+      encoding: "windows-1253",
+      labels: ["cp1253", "windows-1253", "x-cp1253"],
+    },
+    {
+      encoding: "windows-1254",
+      labels: [
+        "cp1254",
+        "csisolatin5",
+        "iso-8859-9",
+        "iso-ir-148",
+        "iso8859-9",
+        "iso88599",
+        "iso_8859-9",
+        "iso_8859-9:1989",
+        "l5",
+        "latin5",
+        "windows-1254",
+        "x-cp1254",
+      ],
+    },
+    {
+      encoding: "windows-1255",
+      labels: ["cp1255", "windows-1255", "x-cp1255"],
+    },
+    {
+      encoding: "windows-1256",
+      labels: ["cp1256", "windows-1256", "x-cp1256"],
+    },
+    {
+      encoding: "windows-1257",
+      labels: ["cp1257", "windows-1257", "x-cp1257"],
+    },
+    {
+      encoding: "windows-1258",
+      labels: ["cp1258", "windows-1258", "x-cp1258"],
+    },
+    {
+      encoding: "x-mac-cyrillic",
+      labels: ["x-mac-cyrillic", "x-mac-ukrainian"],
+    },
+    {
+      encoding: "gbk",
+      labels: [
+        "chinese",
+        "csgb2312",
+        "csiso58gb231280",
+        "gb2312",
+        "gb_2312",
+        "gb_2312-80",
+        "gbk",
+        "iso-ir-58",
+        "x-gbk",
+      ],
+    },
+    { encoding: "gb18030", labels: ["gb18030"] },
+    {
+      encoding: "big5",
+      labels: ["big5", "cn-big5", "csbig5", "x-x-big5", "big5-hkscs"],
+    },
+    {
+      encoding: "euc-jp",
+      labels: ["cseucpkdfmtjapanese", "euc-jp", "x-euc-jp"],
+    },
+    { encoding: "iso-2022-jp", labels: ["csiso2022jp", "iso-2022-jp"] },
+    {
+      encoding: "shift_jis",
+      labels: [
+        "csshiftjis",
+        "ms932",
+        "ms_kanji",
+        "shift-jis",
+        "shift_jis",
+        "sjis",
+        "windows-31j",
+        "x-sjis",
+      ],
+    },
+    {
+      encoding: "euc-kr",
+      labels: [
+        "cseuckr",
+        "csksc56011987",
+        "euc-kr",
+        "iso-ir-149",
+        "korean",
+        "ks_c_5601-1987",
+        "ks_c_5601-1989",
+        "ksc5601",
+        "ksc_5601",
+        "windows-949",
+      ],
+    },
+    { encoding: "utf-16le", labels: ["utf-16", "utf-16le"] },
+    { encoding: "utf-16be", labels: ["utf-16be"] },
+    { encoding: "x-user-defined", labels: ["x-user-defined"] },
+    {
+      error: "RangeError",
+      labels: [
+        "x-windows-949",
+        "\u0130SO-8859-1",
+        "csiso2022kr",
+        "iso-2022-kr",
+        "iso-2022-cn",
+        "iso-2022-cn-ext",
+        "replacement",
+        "hz-gb-2312",
+      ],
+    },
+  ];
+
+  for (var le of labelEncodings) {
+    for (var label of le.labels) {
+      try {
+        var decoder = new TextDecoder(label);
+      } catch (e) {
+        assert_true(!!le.error, label + " shoud not throw " + e.name);
+        assert_equals(
+          e.name,
+          le.error,
+          label + " label encoding unsupported test."
+        );
+        continue;
+      }
+      assert_true(!le.error, label + " shoud throw " + le.error);
+      assert_equals(
+        decoder.encoding,
+        le.encoding,
+        label + " label encoding test."
+      );
+    }
+  }
+}
+
+function testCharset(test) {
+  try {
+    var fatal = test.fatal ? { fatal: test.fatal } : null;
+    var decoder = new TextDecoder(test.encoding, fatal);
+  } catch (e) {
+    assert_equals(
+      e.name,
+      test.error,
+      test.msg + " error thrown from the constructor."
+    );
+    if (test.errorMessage) {
+      assert_equals(
+        e.message,
+        test.errorMessage,
+        test.msg + " error thrown from the constructor."
+      );
+    }
+    return;
+  }
+
+  var array = test.array || [test];
+  var num_strings = array.length;
+  for (var i = 0; i < num_strings; i++) {
+    var decodeView =
+      array[i].input !== null ? new Uint8Array(array[i].input) : null;
+    var stream = array[i].stream ? { stream: array[i].stream } : null;
+    var outText;
+    try {
+      outText = decoder.decode(decodeView, stream);
+    } catch (e) {
+      assert_equals(
+        e.name,
+        array[i].error,
+        test.msg + " error thrown from decode()."
+      );
+      return;
+    }
+
+    var expected = array[i].expected;
+    if (outText !== expected) {
+      assert_equals(
+        escape(outText),
+        escape(expected),
+        test.msg + " Code points do not match expected code points."
+      );
+      break;
+    }
+  }
+  assert_true(!test.error, test.msg);
+}
+
+function testInvalid2022JP() {
+  var inputs = [
+    [0x80],
+    [0x1b, 0xff],
+    [0x1b, 0x28, 0xff],
+    [0x1b, 0x24, 0x80],
+    [0x1b, 0x24, 0x28, 0x80],
+    [0x1b, 0x28, 0x4a, 0xff],
+    [0x1b, 0x28, 0x49, 0xff],
+    [0x1b, 0x24, 0x40, 0x20],
+    [0x1b, 0x24, 0x41, 0x20],
+    [0x1b, 0x24, 0x42, 0x20],
+    [0x1b, 0x24, 0x28, 0x43, 0x20],
+    [0x1b, 0x24, 0x28, 0x44, 0x20],
+    [0x1b, 0x24, 0x40, 0x80, 0x21],
+    [0x1b, 0x24, 0x41, 0xff, 0x21],
+    [0x1b, 0x24, 0x42, 0x80, 0x21],
+    [0x1b, 0x24, 0x28, 0x43, 0xff, 0x21],
+    [0x1b, 0x24, 0x28, 0x44, 0x80, 0x21],
+    [0x1b, 0x24, 0x40, 0x21, 0x20],
+    [0x1b, 0x24, 0x41, 0x21, 0x20],
+    [0x1b, 0x24, 0x42, 0x21, 0x20],
+    [0x1b, 0x24, 0x28, 0x43, 0x21, 0x20],
+    [0x1b, 0x24, 0x28, 0x44, 0x21, 0x20],
+    [0x1b, 0x2e, 0xff],
+    [0x1b, 0x4e, 0x20],
+    [0x1b, 0x4e, 0x7f],
+    [0x1b, 0x2e, 0x41, 0x1b, 0x4e, 0x80],
+    [0x1b, 0x2e, 0x41, 0x1b, 0x4e, 0xff],
+  ];
+
+  var failureCount = 0;
+  inputs.forEach(function (input) {
+    try {
+      // decode() should never throw unless {fatal: true} is specified
+      new TextDecoder("iso-2022-jp").decode(new Uint8Array(input));
+    } catch (e) {
+      if (e.name !== "TypeError") {
+        throw e;
+      }
+      failureCount++;
+    }
+  });
+  assert_equals(
+    failureCount,
+    0,
+    failureCount + " of " + inputs.length + " tests failed"
+  );
+}
+
+function testDecoderForBig5() {
+  const inputs = [
+    [0x61, 0x62],
+    [0x87, 0x40],
+    [0xfe, 0xfe],
+    [0xfe, 0xfd],
+    [0x88, 0x62],
+    [0x88, 0x64],
+    [0x88, 0x66],
+    [0x88, 0xa3],
+    [0x88, 0xa5],
+    [0x88, 0xa7],
+    [0x99, 0xd4],
+    [0x99, 0xd5],
+    [0x99, 0xd6],
+    [0x61, 0x87, 0x40, 0x62],
+    [0x61, 0xfe, 0xfe, 0x62],
+    [0x61, 0xfe, 0xfd, 0x62],
+    [0x61, 0x88, 0x62, 0x62],
+    [0x61, 0x88, 0x64, 0x62],
+    [0x61, 0x88, 0x66, 0x62],
+    [0x61, 0x88, 0xa3, 0x62],
+    [0x61, 0x88, 0xa5, 0x62],
+    [0x61, 0x88, 0xa7, 0x62],
+    [0x61, 0x99, 0xd4, 0x62],
+    [0x61, 0x99, 0xd5, 0x62],
+    [0x61, 0x99, 0xd6, 0x62],
+    [0x80, 0x61],
+    [0xff, 0x61],
+    [0xfe, 0x39],
+    [0x87, 0x66],
+    [0x81, 0x40],
+    [0x61, 0x81],
+  ];
+  const expectations = [
+    "\u0061\u0062",
+    "\u43F0",
+    "\u79D4",
+    "\uD864\uDD0D",
+    "\u00CA\u0304",
+    "\u00CA\u030C",
+    "\u00CA",
+    "\u00EA\u0304",
+    "\u00EA\u030C",
+    "\u00EA",
+    "\u8991",
+    "\uD85E\uDD67",
+    "\u8A29",
+    "\u0061\u43F0\u0062",
+    "\u0061\u79D4\u0062",
+    "\u0061\uD864\uDD0D\u0062",
+    "\u0061\u00CA\u0304\u0062",
+    "\u0061\u00CA\u030C\u0062",
+    "\u0061\u00CA\u0062",
+    "\u0061\u00EA\u0304\u0062",
+    "\u0061\u00EA\u030C\u0062",
+    "\u0061\u00EA\u0062",
+    "\u0061\u8991\u0062",
+    "\u0061\uD85E\uDD67\u0062",
+    "\u0061\u8A29\u0062",
+    "\uFFFD\u0061",
+    "\uFFFD\u0061",
+    "\uFFFD\u0039",
+    "\uFFFD\u0066",
+    "\uFFFD\u0040",
+    "\u0061\uFFFD",
+  ];
+
+  for (var i = 0; i < inputs.length; i++) {
+    testCharset({
+      encoding: "big5",
+      input: inputs[i],
+      expected: expectations[i],
+      msg: "decoder test #" + i + " for big5.",
+    });
+  }
+}