From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- intl/uconv/tests/unit/test_charset_conversion.js | 373 +++++++++++++++++++++++ 1 file changed, 373 insertions(+) create mode 100644 intl/uconv/tests/unit/test_charset_conversion.js (limited to 'intl/uconv/tests/unit/test_charset_conversion.js') diff --git a/intl/uconv/tests/unit/test_charset_conversion.js b/intl/uconv/tests/unit/test_charset_conversion.js new file mode 100644 index 0000000000..577a801081 --- /dev/null +++ b/intl/uconv/tests/unit/test_charset_conversion.js @@ -0,0 +1,373 @@ +const NS_ERROR_ILLEGAL_VALUE = Cr.NS_ERROR_ILLEGAL_VALUE; + +var BIS, BOS, _Pipe, COS, FIS, _SS, CIS; + +var dataDir; + +function run_test() { + BIS = Components.Constructor( + "@mozilla.org/binaryinputstream;1", + "nsIBinaryInputStream", + "setInputStream" + ); + BOS = Components.Constructor( + "@mozilla.org/binaryoutputstream;1", + "nsIBinaryOutputStream", + "setOutputStream" + ); + _Pipe = Components.Constructor("@mozilla.org/pipe;1", "nsIPipe", "init"); + COS = Components.Constructor( + "@mozilla.org/intl/converter-output-stream;1", + "nsIConverterOutputStream", + "init" + ); + FIS = Components.Constructor( + "@mozilla.org/network/file-input-stream;1", + "nsIFileInputStream", + "init" + ); + _SS = Components.Constructor( + "@mozilla.org/storagestream;1", + "nsIStorageStream", + "init" + ); + CIS = Components.Constructor( + "@mozilla.org/intl/converter-input-stream;1", + "nsIConverterInputStream", + "init" + ); + + dataDir = do_get_file("data/"); + + test_utf8_1(); + test_cross_conversion(); +} + +const UNICODE_STRINGS = [ + "\u00BD + \u00BE == \u00BD\u00B2 + \u00BC + \u00BE", + + "AZaz09 \u007F " + // U+000000 to U+00007F + "\u0080 \u0398 \u03BB \u0725 " + // U+000080 to U+0007FF + "\u0964 \u0F5F \u20AC \uFFFB", // U+000800 to U+00FFFF + + // there would be strings containing non-BMP code points here, but + // unfortunately JS strings are UCS-2 (and worse yet are treated as + // 16-bit values by the spec), so we have to do gymnastics to work + // with non-BMP -- manual surrogate decoding doesn't work because + // String.prototype.charCodeAt() ignores surrogate pairs and only + // returns 16-bit values +]; + +// test conversion equality -- keys are names of files containing equivalent +// Unicode data, values are the encoding of the file in the format expected by +// nsIConverter(In|Out)putStream.init +const UNICODE_FILES = { + "unicode-conversion.utf8.txt": "UTF-8", + "unicode-conversion.utf16.txt": "UTF-16", + "unicode-conversion.utf16le.txt": "UTF-16LE", + "unicode-conversion.utf16be.txt": "UTF-16BE", +}; + +function test_utf8_1() { + for (var i = 0; i < UNICODE_STRINGS.length; i++) { + var pipe = Pipe(); + var conv = new COS(pipe.outputStream, "UTF-8"); + Assert.ok(conv.writeString(UNICODE_STRINGS[i])); + conv.close(); + + if ( + !equalStreams( + new UTF8(pipe.inputStream), + stringToCodePoints(UNICODE_STRINGS[i]) + ) + ) { + do_throw("UNICODE_STRINGS[" + i + "] not handled correctly"); + } + } +} + +function test_cross_conversion() { + for (var fn1 in UNICODE_FILES) { + var fin = getBinaryInputStream(fn1); + var ss = StorageStream(); + + var bos = new BOS(ss.getOutputStream(0)); + var av; + while ((av = fin.available()) > 0) { + var data = fin.readByteArray(av); + bos.writeByteArray(data); + } + fin.close(); + bos.close(); + + for (var fn2 in UNICODE_FILES) { + var fin2 = getUnicharInputStream(fn2, UNICODE_FILES[fn2]); + var unichar = new CIS( + ss.newInputStream(0), + UNICODE_FILES[fn1], + 8192, + 0x0 + ); + + if (!equalUnicharStreams(unichar, fin2)) { + do_throw( + "unequal streams: " + UNICODE_FILES[fn1] + ", " + UNICODE_FILES[fn2] + ); + } + } + } +} + +// utility functions + +function StorageStream() { + return new _SS(8192, Math.pow(2, 32) - 1, null); +} + +function getUnicharInputStream(filename, encoding) { + var file = dataDir.clone(); + file.append(filename); + + const PR_RDONLY = 0x1; + var fis = new FIS( + file, + PR_RDONLY, + "0644", + Ci.nsIFileInputStream.CLOSE_ON_EOF + ); + return new CIS(fis, encoding, 8192, 0x0); +} + +function getBinaryInputStream(filename, encoding) { + var file = dataDir.clone(); + file.append(filename); + + const PR_RDONLY = 0x1; + var fis = new FIS( + file, + PR_RDONLY, + "0644", + Ci.nsIFileInputStream.CLOSE_ON_EOF + ); + return new BIS(fis); +} + +function equalStreams(stream, codePoints) { + var currIndex = 0; + while (true) { + var unit = stream.readUnit(); + if (unit < 0) { + return currIndex == codePoints.length; + } + if (unit !== codePoints[currIndex++]) { + return false; + } + } + // eslint-disable-next-line no-unreachable + do_throw("not reached"); + return false; +} + +function equalUnicharStreams(s1, s2) { + var r1, r2; + var str1 = {}, + str2 = {}; + while (true) { + r1 = s1.readString(1024, str1); + r2 = s2.readString(1024, str2); + + if (r1 != r2 || str1.value != str2.value) { + print("r1: " + r1 + ", r2: " + r2); + print(str1.value.length); + print(str2.value.length); + return false; + } + if (r1 == 0 && r2 == 0) { + return true; + } + } + + // not reached + // eslint-disable-next-line no-unreachable + return false; +} + +function stringToCodePoints(str) { + return str.split("").map(function (v) { + return v.charCodeAt(0); + }); +} + +function lowbits(n) { + return Math.pow(2, n) - 1; +} + +function Pipe() { + return new _Pipe(false, false, 1024, 10, null); +} + +// complex charset readers + +/** + * Wraps a UTF-8 stream to allow access to the Unicode code points in it. + * + * @param stream + * the stream to wrap + */ +function UTF8(stream) { + this._stream = new BIS(stream); +} +UTF8.prototype = { + // returns numeric code point at front of stream encoded in UTF-8, -1 if at + // end of stream, or throws if valid (and properly encoded!) code point not + // found + readUnit() { + var str = this._stream; + + var c, c2, c3, c4, rv; + + // if at end of stream, must distinguish failure to read any bytes + // (correct behavior) from failure to read some byte after the first + // in the character + try { + c = str.read8(); + } catch (e) { + return -1; + } + + if (c < 0x80) { + return c; + } + + if (c < 0xc0) { + // c < 11000000 + // byte doesn't have enough leading ones (must be at least two) + throw NS_ERROR_ILLEGAL_VALUE; + } + + c2 = str.read8(); + if (c2 >= 0xc0 || c2 < 0x80) { + throw NS_ERROR_ILLEGAL_VALUE; + } // not 10xxxxxx + + if (c < 0xe0) { + // c < 11100000 + // two-byte between U+000080 and U+0007FF + rv = ((lowbits(5) & c) << 6) + (lowbits(6) & c2); + // no upper bounds-check needed, by previous lines + if (rv >= 0x80) { + return rv; + } + throw NS_ERROR_ILLEGAL_VALUE; + } + + c3 = str.read8(); + if (c3 >= 0xc0 || c3 < 0x80) { + throw NS_ERROR_ILLEGAL_VALUE; + } // not 10xxxxxx + + if (c < 0xf0) { + // c < 11110000 + // three-byte between U+000800 and U+00FFFF + rv = + ((lowbits(4) & c) << 12) + ((lowbits(6) & c2) << 6) + (lowbits(6) & c3); + // no upper bounds-check needed, by previous lines + if (rv >= 0xe000 || (rv >= 0x800 && rv <= 0xd7ff)) { + return rv; + } + throw NS_ERROR_ILLEGAL_VALUE; + } + + c4 = str.read8(); + if (c4 >= 0xc0 || c4 < 0x80) { + throw NS_ERROR_ILLEGAL_VALUE; + } // not 10xxxxxx + + if (c < 0xf8) { + // c < 11111000 + // four-byte between U+010000 and U+10FFFF + rv = + ((lowbits(3) & c) << 18) + + ((lowbits(6) & c2) << 12) + + ((lowbits(6) & c3) << 6) + + (lowbits(6) & c4); + // need an upper bounds-check since 0x10FFFF isn't (2**n - 1) + if (rv >= 0x10000 && rv <= 0x10ffff) { + return rv; + } + throw NS_ERROR_ILLEGAL_VALUE; + } + + // 11111000 or greater -- no UTF-8 mapping + throw NS_ERROR_ILLEGAL_VALUE; + }, +}; + +/** + * Wraps a UTF-16 stream to allow access to the Unicode code points in it. + * + * @param stream + * the stream to wrap + * @param bigEndian + * true for UTF-16BE, false for UTF-16LE, not present at all for UTF-16 with + * a byte-order mark + */ +function UTF16(stream, bigEndian) { + this._stream = new BIS(stream); + if (arguments.length > 1) { + this._bigEndian = bigEndian; + } else { + var bom = this._stream.read16(); + if (bom == 0xfeff) { + this._bigEndian = true; + } else if (bom == 0xfffe) { + this._bigEndian = false; + } else { + do_throw("missing BOM: " + bom.toString(16).toUpperCase()); + } + } +} +UTF16.prototype = { + // returns numeric code point at front of stream encoded in UTF-16, + // -1 if at end of stream, or throws if UTF-16 code point not found + readUnit() { + var str = this._stream; + + // if at end of stream, must distinguish failure to read any bytes + // (correct behavior) from failure to read some byte after the first + // in the character + try { + var b1 = str.read8(); + } catch (e) { + return -1; + } + + var b2 = str.read8(); + + var w1 = this._bigEndian ? (b1 << 8) + b2 : (b2 << 8) + b1; + + if (w1 > 0xdbff && w1 < 0xe000) { + // second surrogate, but expecting none or first + throw NS_ERROR_ILLEGAL_VALUE; + } + + if (w1 > 0xd7ff && w1 < 0xdc00) { + // non-BMP, use surrogate pair + b1 = str.read8(); + b2 = str.read8(); + var w2 = this._bigEndian ? (b1 << 8) + b2 : (b2 << 8) + b1; + if (w2 < 0xdc00 || w2 > 0xdfff) { + throw NS_ERROR_ILLEGAL_VALUE; + } + + var rv = 0x100000 + ((lowbits(10) & w2) << 10) + (lowbits(10) & w1); + if (rv <= 0x10ffff) { + return rv; + } + throw NS_ERROR_ILLEGAL_VALUE; + } + + // non-surrogate + return w1; + }, +}; -- cgit v1.2.3