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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide('goog.cryptTest');
goog.setTestOnly('goog.cryptTest');
goog.require('goog.crypt');
goog.require('goog.string');
goog.require('goog.testing.jsunit');
var UTF8_RANGES_BYTE_ARRAY =
[0x00, 0x7F, 0xC2, 0x80, 0xDF, 0xBF, 0xE0, 0xA0, 0x80, 0xEF, 0xBF, 0xBF];
var UTF8_SURROGATE_PAIR_RANGES_BYTE_ARRAY = [
0xF0, 0x90, 0x80, 0x80, // \uD800\uDC00
0xF0, 0x90, 0x8F, 0xBF, // \uD800\uDFFF
0xF4, 0x8F, 0xB0, 0x80, // \uDBFF\uDC00
0xF4, 0x8F, 0xBF, 0xBF // \uDBFF\uDFFF
];
var UTF8_RANGES_STRING = '\u0000\u007F\u0080\u07FF\u0800\uFFFF';
var UTF8_SURROGATE_PAIR_RANGES_STRING =
'\uD800\uDC00\uD800\uDFFF\uDBFF\uDC00\uDBFF\uDFFF';
function testStringToUtf8ByteArray() {
// Known encodings taken from Java's String.getBytes("UTF8")
assertArrayEquals(
'ASCII', [72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100],
goog.crypt.stringToUtf8ByteArray('Hello, world'));
assertArrayEquals(
'Latin', [83, 99, 104, 195, 182, 110],
goog.crypt.stringToUtf8ByteArray('Sch\u00f6n'));
assertArrayEquals(
'limits of the first 3 UTF-8 character ranges', UTF8_RANGES_BYTE_ARRAY,
goog.crypt.stringToUtf8ByteArray(UTF8_RANGES_STRING));
assertArrayEquals(
'Surrogate Pair', UTF8_SURROGATE_PAIR_RANGES_BYTE_ARRAY,
goog.crypt.stringToUtf8ByteArray(UTF8_SURROGATE_PAIR_RANGES_STRING));
}
function testUtf8ByteArrayToString() {
// Known encodings taken from Java's String.getBytes("UTF8")
assertEquals('ASCII', 'Hello, world', goog.crypt.utf8ByteArrayToString([
72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100
]));
assertEquals(
'Latin', 'Sch\u00f6n',
goog.crypt.utf8ByteArrayToString([83, 99, 104, 195, 182, 110]));
assertEquals(
'limits of the first 3 UTF-8 character ranges', UTF8_RANGES_STRING,
goog.crypt.utf8ByteArrayToString(UTF8_RANGES_BYTE_ARRAY));
assertEquals(
'Surrogate Pair', UTF8_SURROGATE_PAIR_RANGES_STRING,
goog.crypt.utf8ByteArrayToString(UTF8_SURROGATE_PAIR_RANGES_BYTE_ARRAY));
}
/**
* Same as testUtf8ByteArrayToString but with Uint8Array instead of
* Array<number>.
*/
function testUint8ArrayToString() {
if (!goog.global.Uint8Array) {
// Uint8Array not supported.
return;
}
var arr =
new Uint8Array([72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100]);
assertEquals('ASCII', 'Hello, world', goog.crypt.utf8ByteArrayToString(arr));
arr = new Uint8Array([83, 99, 104, 195, 182, 110]);
assertEquals('Latin', 'Sch\u00f6n', goog.crypt.utf8ByteArrayToString(arr));
arr = new Uint8Array(UTF8_RANGES_BYTE_ARRAY);
assertEquals(
'limits of the first 3 UTF-8 character ranges', UTF8_RANGES_STRING,
goog.crypt.utf8ByteArrayToString(arr));
}
function testByteArrayToString() {
assertEquals('', goog.crypt.byteArrayToString([]));
assertEquals('abc', goog.crypt.byteArrayToString([97, 98, 99]));
}
function testHexToByteArray() {
assertElementsEquals(
[202, 254, 222, 173],
// Java magic number
goog.crypt.hexToByteArray('cafedead'));
assertElementsEquals(
[222, 173, 190, 239],
// IBM magic number
goog.crypt.hexToByteArray('DEADBEEF'));
}
function testByteArrayToHex() {
assertEquals(
// Java magic number
'cafedead', goog.crypt.byteArrayToHex([202, 254, 222, 173]));
assertEquals(
// IBM magic number
'deadbeef', goog.crypt.byteArrayToHex([222, 173, 190, 239]));
}
/** Same as testByteArrayToHex but with Uint8Array instead of Array<number>. */
function testUint8ArrayToHex() {
if (!goog.isDef(goog.global.Uint8Array)) {
// Uint8Array not supported.
return;
}
assertEquals(
// Java magic number
'cafedead',
goog.crypt.byteArrayToHex(new Uint8Array([202, 254, 222, 173])));
assertEquals(
// IBM magic number
'deadbeef',
goog.crypt.byteArrayToHex(new Uint8Array([222, 173, 190, 239])));
}
function testXorByteArray() {
assertElementsEquals(
[20, 83, 96, 66],
goog.crypt.xorByteArray([202, 254, 222, 173], [222, 173, 190, 239]));
}
/** Same as testXorByteArray but with Uint8Array instead of Array<number>. */
function testXorUint8Array() {
if (!goog.isDef(goog.global.Uint8Array)) {
// Uint8Array not supported.
return;
}
assertElementsEquals(
[20, 83, 96, 66], goog.crypt.xorByteArray(
new Uint8Array([202, 254, 222, 173]),
new Uint8Array([222, 173, 190, 239])));
}
// Tests a one-megabyte byte array conversion to string.
// This would break on many JS implementations unless byteArrayToString
// split the input up.
// See discussion and bug report: http://goo.gl/LrWmZ9
function testByteArrayToStringCallStack() {
// One megabyte is 2 to the 20th.
var count = Math.pow(2, 20);
var bytes = [];
for (var i = 0; i < count; i++) {
bytes.push('A'.charCodeAt(0));
}
var str = goog.crypt.byteArrayToString(bytes);
assertEquals(goog.string.repeat('A', count), str);
}
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