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			119 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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//     * Redistributions of source code must retain the above copyright
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//       notice, this list of conditions and the following disclaimer.
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//     * Redistributions in binary form must reproduce the above
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//       copyright notice, this list of conditions and the following
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//       disclaimer in the documentation and/or other materials provided
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//       with the distribution.
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//     * Neither the name of Google Inc. nor the names of its
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//       contributors may be used to endorse or promote products derived
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//       from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/**
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 * @fileoverview Check that the global escape and unescape functions work
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 * right.
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 */
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// Section B.2.1 of ECMAScript 3
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var unescaped = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@*_+-./";
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// Check the unescape chars are not escaped
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assertEquals(unescaped, escape(unescaped));
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// Check spaces are escaped
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assertEquals("%20/%20", escape(" / "));
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// Check that null chars are escaped and do not terminate the string
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assertEquals("%000", escape("\0" + "0"));
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// Check a unicode escape
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assertEquals("A%20B%u1234%00%20C", escape(String.fromCharCode(0x41, 0x20, 0x42, 0x1234, 0, 0x20, 0x43)));
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// Check unicode escapes have a leading zero to pad to 4 digits
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assertEquals("%u0123", escape(String.fromCharCode(0x123)));
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// Check escapes are upper case
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assertEquals("%uABCD", escape(String.fromCharCode(0xabcd)));
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assertEquals("%AB", escape(String.fromCharCode(0xab)));
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assertEquals("%0A", escape("\n"));
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// Check first 1000 chars individually for escaped/not escaped
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for (var i = 0; i < 1000; i++) {
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  var s = String.fromCharCode(i);
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  if (unescaped.indexOf(s, 0) == -1) {
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    assertFalse(s == escape(s));
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  } else {
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    assertTrue(s == escape(s));
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  }
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}
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// Check all chars up to 1000 in groups of 10 using unescape as a check
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for (var i = 0; i < 1000; i += 10) {
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  var s = String.fromCharCode(i, i+1, i+2, i+3, i+4, i+5, i+6, i+7, i+8, i+9);
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  assertEquals(s, unescape(escape(s)));
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}
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// Benchmark
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var example = "Now is the time for all good men to come to the aid of the party.";
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example = example + String.fromCharCode(267, 0x1234, 0x6667, 0xabcd);
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example = example + " The quick brown fox jumps over the lazy dog."
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example = example + String.fromCharCode(171, 172, 173, 174, 175, 176, 178, 179);
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for (var i = 0; i < 3000; i++) {
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  assertEquals(example, unescape(escape(example)));
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}
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// Check unescape can cope with upper and lower case
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assertEquals(unescape("%41%4A%4a"), "AJJ");
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// Check upper case U
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assertEquals("%U1234", unescape("%U1234"));
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// Check malformed unescapes
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assertEquals("%", unescape("%"));
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assertEquals("%4", unescape("%4"));
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assertEquals("%u", unescape("%u"));
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assertEquals("%u4", unescape("%u4"));
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assertEquals("%u44", unescape("%u44"));
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assertEquals("%u444", unescape("%u444"));
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assertEquals("%4z", unescape("%4z"));
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assertEquals("%uzzzz", unescape("%uzzzz"));
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assertEquals("%u4zzz", unescape("%u4zzz"));
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assertEquals("%u44zz", unescape("%u44zz"));
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assertEquals("%u444z", unescape("%u444z"));
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assertEquals("%4<", unescape("%4<"));
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assertEquals("%u<<<<", unescape("%u<<<<"));
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assertEquals("%u4<<<", unescape("%u4<<<"));
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assertEquals("%u44<<", unescape("%u44<<"));
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assertEquals("%u444<", unescape("%u444<"));
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assertEquals("foo%4<", unescape("foo%4<"));
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assertEquals("foo%u<<<<", unescape("foo%u<<<<"));
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assertEquals("foo%u4<<<", unescape("foo%u4<<<"));
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assertEquals("foo%u44<<", unescape("foo%u44<<"));
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assertEquals("foo%u444<", unescape("foo%u444<"));
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assertEquals("foo%4<bar", unescape("foo%4<bar"));
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assertEquals("foo%u<<<<bar", unescape("foo%u<<<<bar"));
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assertEquals("foo%u4<<<bar", unescape("foo%u4<<<bar"));
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assertEquals("foo%u44<<bar", unescape("foo%u44<<bar"));
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assertEquals("foo%u444<bar", unescape("foo%u444<bar"));
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assertEquals("% ", unescape("%%20"));
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assertEquals("%% ", unescape("%%%20"));
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// Unescape stress
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var eexample = escape(example);
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for (var i = 1; i < 3000; i++) {
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  assertEquals(example, unescape(eexample));
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}
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