1 // Copyright 2008 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Test that array join calls toString on subarrays. 29 var a = [[1,2],3,4,[5,6]]; 30 assertEquals('1,2345,6', a.join('')); 31 assertEquals('1,2*3*4*5,6', a.join('*')); 32 assertEquals('1,2**3**4**5,6', a.join('**')); 33 assertEquals('1,2****3****4****5,6', a.join('****')); 34 assertEquals('1,2********3********4********5,6', a.join('********')); 35 assertEquals('1,2**********3**********4**********5,6', a.join('**********')); 36 37 // Create a cycle. 38 a.push(a); 39 assertEquals('1,2345,6', a.join('')); 40 assertEquals('1,2*3*4*5,6*', a.join('*')); 41 assertEquals('1,2**3**4**5,6**', a.join('**')); 42 assertEquals('1,2****3****4****5,6****', a.join('****')); 43 assertEquals('1,2********3********4********5,6********', a.join('********')); 44 assertEquals('1,2**********3**********4**********5,6**********', a.join('**********')); 45 46 // Replace array.prototype.toString. 47 Array.prototype.toString = function() { return "array"; } 48 assertEquals('array34arrayarray', a.join('')); 49 assertEquals('array*3*4*array*array', a.join('*')); 50 assertEquals('array**3**4**array**array', a.join('**')); 51 assertEquals('array****3****4****array****array', a.join('****')); 52 assertEquals('array********3********4********array********array', a.join('********')); 53 assertEquals('array**********3**********4**********array**********array', a.join('**********')); 54 55 Array.prototype.toString = function() { throw 42; } 56 assertThrows("a.join('')"); 57 assertThrows("a.join('*')"); 58 assertThrows("a.join('**')"); 59 assertThrows("a.join('****')"); 60 assertThrows("a.join('********')"); 61 assertThrows("a.join('**********')"); 62 63 Array.prototype.toString = function() { return "array"; } 64 assertEquals('array34arrayarray', a.join('')); 65 assertEquals('array*3*4*array*array', a.join('*')); 66 assertEquals('array**3**4**array**array', a.join('**')); 67 assertEquals('array****3****4****array****array', a.join('****')); 68 assertEquals('array********3********4********array********array', a.join('********')); 69 assertEquals('array**********3**********4**********array**********array', a.join('**********')); 70 71
