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//
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7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
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11//       with the distribution.
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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
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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.
29var a = [[1,2],3,4,[5,6]];
30assertEquals('1,2345,6', a.join(''));
31assertEquals('1,2*3*4*5,6', a.join('*'));
32assertEquals('1,2**3**4**5,6', a.join('**'));
33assertEquals('1,2****3****4****5,6', a.join('****'));
34assertEquals('1,2********3********4********5,6', a.join('********'));
35assertEquals('1,2**********3**********4**********5,6', a.join('**********'));
36
37// Create a cycle.
38a.push(a);
39assertEquals('1,2345,6', a.join(''));
40assertEquals('1,2*3*4*5,6*', a.join('*'));
41assertEquals('1,2**3**4**5,6**', a.join('**'));
42assertEquals('1,2****3****4****5,6****', a.join('****'));
43assertEquals('1,2********3********4********5,6********', a.join('********'));
44assertEquals('1,2**********3**********4**********5,6**********', a.join('**********'));
45
46// Replace array.prototype.toString.
47var oldToString = Array.prototype.toString;
48Array.prototype.toString = function() { return "array"; };
49assertEquals('array34arrayarray', a.join(''));
50assertEquals('array*3*4*array*array', a.join('*'));
51assertEquals('array**3**4**array**array', a.join('**'));
52assertEquals('array****3****4****array****array', a.join('****'));
53assertEquals('array********3********4********array********array', a.join('********'));
54assertEquals('array**********3**********4**********array**********array', a.join('**********'));
55
56Array.prototype.toString = function() { throw 42; };
57assertThrows("a.join('')");
58assertThrows("a.join('*')");
59assertThrows("a.join('**')");
60assertThrows("a.join('****')");
61assertThrows("a.join('********')");
62assertThrows("a.join('**********')");
63
64Array.prototype.toString = function() { return "array"; };
65assertEquals('array34arrayarray', a.join(''));
66assertEquals('array*3*4*array*array', a.join('*'));
67assertEquals('array**3**4**array**array', a.join('**'));
68assertEquals('array****3****4****array****array', a.join('****'));
69assertEquals('array********3********4********array********array', a.join('********'));
70assertEquals('array**********3**********4**********array**********array', a.join('**********'));
71
72// Restore original toString.
73delete Array.prototype.toString;
74if (Array.prototype.toString != oldToString) {
75  Array.prototype.toString = oldToString;
76}
77
78var a = new Array(123123);
79assertEquals(123122, String(a).length);
80assertEquals(123122, a.join(",").length);
81assertEquals(246244, a.join("oo").length);
82
83a = new Array(Math.pow(2,32) - 1);  // Max length.
84assertEquals("", a.join(""));
85a[123123123] = "o";
86a[1255215215] = "p";
87assertEquals("op", a.join(""));
88
89a = new Array(100001);
90for (var i = 0; i < a.length; i++) a[i] = undefined;
91a[5] = "ab";
92a[90000] = "cd";
93assertEquals("abcd", a.join(""));  // Must not throw.
94