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	sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
		
			
				
	
	
		
			420 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			420 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| // Copyright 2014 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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| assertEquals(1, String.prototype.endsWith.length);
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| 
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| var testString = "Hello World";
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| assertTrue(testString.endsWith(""));
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| assertTrue(testString.endsWith("World"));
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| assertFalse(testString.endsWith("world"));
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| assertFalse(testString.endsWith("Hello World!"));
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| assertFalse(testString.endsWith(null));
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| assertFalse(testString.endsWith(undefined));
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| assertFalse(testString.endsWith());
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| 
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| assertTrue("null".endsWith(null));
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| assertTrue("undefined".endsWith(undefined));
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| 
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| var georgianUnicodeString = "\u10D0\u10D1\u10D2\u10D3\u10D4\u10D5\u10D6\u10D7";
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| assertTrue(georgianUnicodeString.endsWith(georgianUnicodeString));
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| assertTrue(georgianUnicodeString.endsWith("\u10D4\u10D5\u10D6\u10D7"));
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| assertFalse(georgianUnicodeString.endsWith("\u10D0"));
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| 
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| assertThrows("String.prototype.endsWith.call(null, 'test')", TypeError);
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| assertThrows("String.prototype.endsWith.call(null, null)", TypeError);
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| assertThrows("String.prototype.endsWith.call(undefined, undefined)", TypeError);
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| 
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| assertThrows("String.prototype.endsWith.apply(null, ['test'])", TypeError);
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| assertThrows("String.prototype.endsWith.apply(null, [null])", TypeError);
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| assertThrows("String.prototype.endsWith.apply(undefined, [undefined])", TypeError);
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| 
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| var TEST_INPUT = [{
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|   msg: "Empty string", val: ""
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| }, {
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|   msg: "Number 1234.34", val: 1234.34
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| }, {
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|   msg: "Integer number 0", val: 0
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| }, {
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|   msg: "Negative number -1", val: -1
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| }, {
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|   msg: "Boolean true", val: true
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| }, {
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|   msg: "Boolean false", val: false
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| }, {
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|   msg: "Empty array []", val: []
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| }, {
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|   msg: "Empty object {}", val: {}
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| }, {
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|   msg: "Array of size 3", val: new Array(3)
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| }];
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| 
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| function testNonStringValues() {
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|   var i = 0;
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|   var l = TEST_INPUT.length;
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| 
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|   for (; i < l; i++) {
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|     var e = TEST_INPUT[i];
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|     var v = e.val;
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|     var s = String(v);
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|     assertTrue(s.endsWith(v), e.msg);
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|     assertTrue(String.prototype.endsWith.call(v, v), e.msg);
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|     assertTrue(String.prototype.endsWith.apply(v, [v]), e.msg);
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|   }
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| }
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| testNonStringValues();
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| 
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| var CustomType = function(value) {
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|   this.endsWith = String.prototype.endsWith;
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|   this.toString = function() {
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|     return String(value);
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|   }
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| };
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| 
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| function testCutomType() {
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|   var i = 0;
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|   var l = TEST_INPUT.length;
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| 
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|   for (; i < l; i++) {
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|     var e = TEST_INPUT[i];
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|     var v = e.val;
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|     var o = new CustomType(v);
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|     assertTrue(o.endsWith(v), e.msg);
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|   }
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| }
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| testCutomType();
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| 
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| 
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| // Test cases found in FF
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| assertTrue("abc".endsWith("abc"));
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| assertTrue("abcd".endsWith("bcd"));
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| assertTrue("abc".endsWith("c"));
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| assertFalse("abc".endsWith("abcd"));
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| assertFalse("abc".endsWith("bbc"));
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| assertFalse("abc".endsWith("b"));
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| assertTrue("abc".endsWith("abc", 3));
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| assertTrue("abc".endsWith("bc", 3));
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| assertFalse("abc".endsWith("a", 3));
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| assertTrue("abc".endsWith("bc", 3));
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| assertTrue("abc".endsWith("a", 1));
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| assertFalse("abc".endsWith("abc", 1));
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| assertTrue("abc".endsWith("b", 2));
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| assertFalse("abc".endsWith("d", 2));
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| assertFalse("abc".endsWith("dcd", 2));
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| assertFalse("abc".endsWith("a", 42));
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| assertTrue("abc".endsWith("bc", Infinity));
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| assertFalse("abc".endsWith("a", Infinity));
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| assertTrue("abc".endsWith("bc", undefined));
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| assertFalse("abc".endsWith("bc", -43));
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| assertFalse("abc".endsWith("bc", -Infinity));
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| assertFalse("abc".endsWith("bc", NaN));
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| 
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| // Test cases taken from
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| // https://github.com/mathiasbynens/String.prototype.endsWith/blob/master/tests/tests.js
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| Object.prototype[1] = 2; // try to break `arguments[1]`
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| 
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| assertEquals(String.prototype.endsWith.length, 1);
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| assertEquals(String.prototype.propertyIsEnumerable("endsWith"), false);
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| 
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| assertEquals("undefined".endsWith(), true);
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| assertEquals("undefined".endsWith(undefined), true);
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| assertEquals("undefined".endsWith(null), false);
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| assertEquals("null".endsWith(), false);
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| assertEquals("null".endsWith(undefined), false);
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| assertEquals("null".endsWith(null), true);
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| 
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| assertEquals("abc".endsWith(), false);
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| assertEquals("abc".endsWith(""), true);
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| assertEquals("abc".endsWith("\0"), false);
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| assertEquals("abc".endsWith("c"), true);
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| assertEquals("abc".endsWith("b"), false);
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| assertEquals("abc".endsWith("ab"), false);
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| assertEquals("abc".endsWith("bc"), true);
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| assertEquals("abc".endsWith("abc"), true);
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| assertEquals("abc".endsWith("bcd"), false);
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| assertEquals("abc".endsWith("abcd"), false);
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| assertEquals("abc".endsWith("bcde"), false);
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| 
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| assertEquals("abc".endsWith("", NaN), true);
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| assertEquals("abc".endsWith("\0", NaN), false);
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| assertEquals("abc".endsWith("c", NaN), false);
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| assertEquals("abc".endsWith("b", NaN), false);
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| assertEquals("abc".endsWith("ab", NaN), false);
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| assertEquals("abc".endsWith("bc", NaN), false);
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| assertEquals("abc".endsWith("abc", NaN), false);
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| assertEquals("abc".endsWith("bcd", NaN), false);
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| assertEquals("abc".endsWith("abcd", NaN), false);
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| assertEquals("abc".endsWith("bcde", NaN), false);
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| 
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| assertEquals("abc".endsWith("", false), true);
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| assertEquals("abc".endsWith("\0", false), false);
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| assertEquals("abc".endsWith("c", false), false);
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| assertEquals("abc".endsWith("b", false), false);
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| assertEquals("abc".endsWith("ab", false), false);
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| assertEquals("abc".endsWith("bc", false), false);
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| assertEquals("abc".endsWith("abc", false), false);
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| assertEquals("abc".endsWith("bcd", false), false);
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| assertEquals("abc".endsWith("abcd", false), false);
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| assertEquals("abc".endsWith("bcde", false), false);
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| 
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| assertEquals("abc".endsWith("", undefined), true);
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| assertEquals("abc".endsWith("\0", undefined), false);
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| assertEquals("abc".endsWith("c", undefined), true);
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| assertEquals("abc".endsWith("b", undefined), false);
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| assertEquals("abc".endsWith("ab", undefined), false);
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| assertEquals("abc".endsWith("bc", undefined), true);
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| assertEquals("abc".endsWith("abc", undefined), true);
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| assertEquals("abc".endsWith("bcd", undefined), false);
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| assertEquals("abc".endsWith("abcd", undefined), false);
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| assertEquals("abc".endsWith("bcde", undefined), false);
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| 
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| assertEquals("abc".endsWith("", null), true);
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| assertEquals("abc".endsWith("\0", null), false);
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| assertEquals("abc".endsWith("c", null), false);
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| assertEquals("abc".endsWith("b", null), false);
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| assertEquals("abc".endsWith("ab", null), false);
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| assertEquals("abc".endsWith("bc", null), false);
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| assertEquals("abc".endsWith("abc", null), false);
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| assertEquals("abc".endsWith("bcd", null), false);
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| assertEquals("abc".endsWith("abcd", null), false);
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| assertEquals("abc".endsWith("bcde", null), false);
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| 
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| assertEquals("abc".endsWith("", -Infinity), true);
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| assertEquals("abc".endsWith("\0", -Infinity), false);
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| assertEquals("abc".endsWith("c", -Infinity), false);
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| assertEquals("abc".endsWith("b", -Infinity), false);
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| assertEquals("abc".endsWith("ab", -Infinity), false);
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| assertEquals("abc".endsWith("bc", -Infinity), false);
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| assertEquals("abc".endsWith("abc", -Infinity), false);
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| assertEquals("abc".endsWith("bcd", -Infinity), false);
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| assertEquals("abc".endsWith("abcd", -Infinity), false);
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| assertEquals("abc".endsWith("bcde", -Infinity), false);
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| 
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| assertEquals("abc".endsWith("", -1), true);
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| assertEquals("abc".endsWith("\0", -1), false);
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| assertEquals("abc".endsWith("c", -1), false);
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| assertEquals("abc".endsWith("b", -1), false);
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| assertEquals("abc".endsWith("ab", -1), false);
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| assertEquals("abc".endsWith("bc", -1), false);
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| assertEquals("abc".endsWith("abc", -1), false);
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| assertEquals("abc".endsWith("bcd", -1), false);
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| assertEquals("abc".endsWith("abcd", -1), false);
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| assertEquals("abc".endsWith("bcde", -1), false);
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| 
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| assertEquals("abc".endsWith("", -0), true);
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| assertEquals("abc".endsWith("\0", -0), false);
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| assertEquals("abc".endsWith("c", -0), false);
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| assertEquals("abc".endsWith("b", -0), false);
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| assertEquals("abc".endsWith("ab", -0), false);
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| assertEquals("abc".endsWith("bc", -0), false);
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| assertEquals("abc".endsWith("abc", -0), false);
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| assertEquals("abc".endsWith("bcd", -0), false);
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| assertEquals("abc".endsWith("abcd", -0), false);
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| assertEquals("abc".endsWith("bcde", -0), false);
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| 
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| assertEquals("abc".endsWith("", +0), true);
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| assertEquals("abc".endsWith("\0", +0), false);
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| assertEquals("abc".endsWith("c", +0), false);
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| assertEquals("abc".endsWith("b", +0), false);
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| assertEquals("abc".endsWith("ab", +0), false);
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| assertEquals("abc".endsWith("bc", +0), false);
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| assertEquals("abc".endsWith("abc", +0), false);
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| assertEquals("abc".endsWith("bcd", +0), false);
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| assertEquals("abc".endsWith("abcd", +0), false);
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| assertEquals("abc".endsWith("bcde", +0), false);
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| 
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| assertEquals("abc".endsWith("", 1), true);
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| assertEquals("abc".endsWith("\0", 1), false);
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| assertEquals("abc".endsWith("c", 1), false);
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| assertEquals("abc".endsWith("b", 1), false);
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| assertEquals("abc".endsWith("ab", 1), false);
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| assertEquals("abc".endsWith("bc", 1), false);
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| assertEquals("abc".endsWith("abc", 1), false);
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| assertEquals("abc".endsWith("bcd", 1), false);
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| assertEquals("abc".endsWith("abcd", 1), false);
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| assertEquals("abc".endsWith("bcde", 1), false);
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| 
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| assertEquals("abc".endsWith("", 2), true);
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| assertEquals("abc".endsWith("\0", 2), false);
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| assertEquals("abc".endsWith("c", 2), false);
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| assertEquals("abc".endsWith("b", 2), true);
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| assertEquals("abc".endsWith("ab", 2), true);
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| assertEquals("abc".endsWith("bc", 2), false);
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| assertEquals("abc".endsWith("abc", 2), false);
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| assertEquals("abc".endsWith("bcd", 2), false);
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| assertEquals("abc".endsWith("abcd", 2), false);
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| assertEquals("abc".endsWith("bcde", 2), false);
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| 
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| assertEquals("abc".endsWith("", +Infinity), true);
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| assertEquals("abc".endsWith("\0", +Infinity), false);
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| assertEquals("abc".endsWith("c", +Infinity), true);
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| assertEquals("abc".endsWith("b", +Infinity), false);
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| assertEquals("abc".endsWith("ab", +Infinity), false);
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| assertEquals("abc".endsWith("bc", +Infinity), true);
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| assertEquals("abc".endsWith("abc", +Infinity), true);
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| assertEquals("abc".endsWith("bcd", +Infinity), false);
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| assertEquals("abc".endsWith("abcd", +Infinity), false);
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| assertEquals("abc".endsWith("bcde", +Infinity), false);
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| 
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| assertEquals("abc".endsWith("", true), true);
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| assertEquals("abc".endsWith("\0", true), false);
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| assertEquals("abc".endsWith("c", true), false);
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| assertEquals("abc".endsWith("b", true), false);
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| assertEquals("abc".endsWith("ab", true), false);
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| assertEquals("abc".endsWith("bc", true), false);
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| assertEquals("abc".endsWith("abc", true), false);
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| assertEquals("abc".endsWith("bcd", true), false);
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| assertEquals("abc".endsWith("abcd", true), false);
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| assertEquals("abc".endsWith("bcde", true), false);
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| 
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| assertEquals("abc".endsWith("", "x"), true);
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| assertEquals("abc".endsWith("\0", "x"), false);
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| assertEquals("abc".endsWith("c", "x"), false);
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| assertEquals("abc".endsWith("b", "x"), false);
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| assertEquals("abc".endsWith("ab", "x"), false);
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| assertEquals("abc".endsWith("bc", "x"), false);
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| assertEquals("abc".endsWith("abc", "x"), false);
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| assertEquals("abc".endsWith("bcd", "x"), false);
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| assertEquals("abc".endsWith("abcd", "x"), false);
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| assertEquals("abc".endsWith("bcde", "x"), false);
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| 
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| assertEquals("[a-z]+(bar)?".endsWith("(bar)?"), true);
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| assertThrows(function() { "[a-z]+(bar)?".endsWith(/(bar)?/);
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| }, TypeError);
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| assertEquals("[a-z]+(bar)?".endsWith("[a-z]+", 6), true);
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| assertThrows(function() { "[a-z]+(bar)?".endsWith(/(bar)?/);
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| }, TypeError);
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| assertThrows(function() { "[a-z]+/(bar)?/".endsWith(/(bar)?/);
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| }, TypeError);
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| 
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| // http://mathiasbynens.be/notes/javascript-unicode#poo-test
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| var string = "I\xF1t\xEBrn\xE2ti\xF4n\xE0liz\xE6ti\xF8n\u2603\uD83D\uDCA9";
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| assertEquals(string.endsWith(""), true);
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| assertEquals(string.endsWith("\xF1t\xEBr"), false);
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| assertEquals(string.endsWith("\xF1t\xEBr", 5), true);
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| assertEquals(string.endsWith("\xE0liz\xE6"), false);
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| assertEquals(string.endsWith("\xE0liz\xE6", 16), true);
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| assertEquals(string.endsWith("\xF8n\u2603\uD83D\uDCA9"), true);
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| assertEquals(string.endsWith("\xF8n\u2603\uD83D\uDCA9", 23), true);
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| assertEquals(string.endsWith("\u2603"), false);
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| assertEquals(string.endsWith("\u2603", 21), true);
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| assertEquals(string.endsWith("\uD83D\uDCA9"), true);
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| assertEquals(string.endsWith("\uD83D\uDCA9", 23), true);
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| 
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| assertThrows(function() {
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|   String.prototype.endsWith.call(undefined);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call(undefined, "b");
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call(undefined, "b", 4);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call(null);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call(null, "b");
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call(null, "b", 4);
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| }, TypeError);
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| assertEquals(String.prototype.endsWith.call(42, "2"), true);
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| assertEquals(String.prototype.endsWith.call(42, "4"), false);
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| assertEquals(String.prototype.endsWith.call(42, "b", 4), false);
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| assertEquals(String.prototype.endsWith.call(42, "2", 1), false);
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| assertEquals(String.prototype.endsWith.call(42, "2", 4), true);
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| assertEquals(String.prototype.endsWith.call({
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|   "toString": function() { return "abc"; }
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| }, "b", 0), false);
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| assertEquals(String.prototype.endsWith.call({
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|   "toString": function() { return "abc"; }
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| }, "b", 1), false);
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| assertEquals(String.prototype.endsWith.call({
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|   "toString": function() { return "abc"; }
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| }, "b", 2), true);
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| assertThrows(function() {
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|   String.prototype.endsWith.call({
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|     "toString": function() { throw RangeError(); }
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|   }, /./);
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| }, RangeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.call({
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|     "toString": function() { return "abc"; }
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|   }, /./);
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| }, TypeError);
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| 
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(undefined);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(undefined, ["b"]); },
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| TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(undefined, ["b", 4]);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(null);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(null, ["b"]);
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| }, TypeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply(null, ["b", 4]);
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| }, TypeError);
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| assertEquals(String.prototype.endsWith.apply(42, ["2"]), true);
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| assertEquals(String.prototype.endsWith.apply(42, ["4"]), false);
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| assertEquals(String.prototype.endsWith.apply(42, ["b", 4]), false);
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| assertEquals(String.prototype.endsWith.apply(42, ["2", 1]), false);
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| assertEquals(String.prototype.endsWith.apply(42, ["2", 4]), true);
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| assertEquals(String.prototype.endsWith.apply({
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|   "toString": function() { return "abc"; }
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| }, ["b", 0]), false);
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| assertEquals(String.prototype.endsWith.apply({
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|   "toString": function() { return "abc"; }
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| }, ["b", 1]), false);
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| assertEquals(String.prototype.endsWith.apply({
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|   "toString": function() { return "abc"; }
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| }, ["b", 2]), true);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply({
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|     "toString": function() { throw RangeError(); }
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|   }, [/./]);
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| }, RangeError);
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| assertThrows(function() {
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|   String.prototype.endsWith.apply({
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|     "toString": function() { return "abc"; }
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|   }, [/./]);
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| }, TypeError);
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| 
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| // endsWith does its brand checks with Symbol.match
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| var re = /./;
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| assertThrows(function() {
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|   "".startsWith(re);
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| }, TypeError);
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| re[Symbol.match] = false;
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| assertEquals(false, "".startsWith(re));
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