1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/js1_7/extensions/basic-Iterator.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,165 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +//-----------------------------------------------------------------------------
1.10 +var BUGNUMBER = "(none)";
1.11 +var summary = "Basic support for accessing iterable objects using Iterator";
1.12 +var actual, expect;
1.13 +
1.14 +printBugNumber(BUGNUMBER);
1.15 +printStatus(summary);
1.16 +
1.17 +/**************
1.18 + * BEGIN TEST *
1.19 + **************/
1.20 +
1.21 +var failed = false;
1.22 +
1.23 +function Array_equals(a, b)
1.24 +{
1.25 + if (!(a instanceof Array) || !(b instanceof Array))
1.26 + throw new Error("Arguments not both of type Array");
1.27 + if (a.length != b.length)
1.28 + return false;
1.29 + for (var i = 0, sz = a.length; i < sz; i++)
1.30 + if (a[i] !== b[i])
1.31 + return false;
1.32 + return true;
1.33 +}
1.34 +
1.35 +var iterable = { persistedProp: 17 };
1.36 +
1.37 +try
1.38 +{
1.39 + // nothing unusual so far -- verify basic properties
1.40 + for (var i in iterable)
1.41 + {
1.42 + if (i != "persistedProp")
1.43 + throw "no persistedProp!";
1.44 + if (iterable[i] != 17)
1.45 + throw "iterable[\"persistedProp\"] == 17";
1.46 + }
1.47 +
1.48 + var keys = ["foo", "bar", "baz"];
1.49 + var vals = [6, 5, 14];
1.50 +
1.51 + iterable.__iterator__ =
1.52 + function(keysOnly)
1.53 + {
1.54 + var gen =
1.55 + function()
1.56 + {
1.57 + for (var i = 0; i < keys.length; i++)
1.58 + {
1.59 + if (keysOnly)
1.60 + yield keys[i];
1.61 + else
1.62 + yield [keys[i], vals[i]];
1.63 + }
1.64 + };
1.65 + return gen();
1.66 + };
1.67 +
1.68 + /* Test [key, value] Iterator */
1.69 + var index = 0;
1.70 + var lastSeen = "INITIALVALUE";
1.71 + var it = Iterator(iterable);
1.72 + try
1.73 + {
1.74 + while (true)
1.75 + {
1.76 + var nextVal = it.next();
1.77 + if (!Array_equals(nextVal, [keys[index], vals[index]]))
1.78 + throw "Iterator(iterable): wrong next result\n" +
1.79 + " expected: " + [keys[index], vals[index]] + "\n" +
1.80 + " actual: " + nextVal;
1.81 + lastSeen = keys[index];
1.82 + index++;
1.83 + }
1.84 + }
1.85 + catch (e)
1.86 + {
1.87 + if (lastSeen !== keys[keys.length - 1])
1.88 + throw "Iterator(iterable): not everything was iterated!\n" +
1.89 + " last iterated was: " + lastSeen + "\n" +
1.90 + " error: " + e;
1.91 + if (e !== StopIteration)
1.92 + throw "Iterator(iterable): missing or invalid StopIteration";
1.93 + }
1.94 +
1.95 + if (iterable.persistedProp != 17)
1.96 + throw "iterable.persistedProp not persisted!";
1.97 +
1.98 + /* Test [key, value] Iterator, called with an explicit |false| parameter */
1.99 + var index = 0;
1.100 + lastSeen = "INITIALVALUE";
1.101 + it = Iterator(iterable, false);
1.102 + try
1.103 + {
1.104 + while (true)
1.105 + {
1.106 + var nextVal = it.next();
1.107 + if (!Array_equals(nextVal, [keys[index], vals[index]]))
1.108 + throw "Iterator(iterable, false): wrong next result\n" +
1.109 + " expected: " + [keys[index], vals[index]] + "\n" +
1.110 + " actual: " + nextVal;
1.111 + lastSeen = keys[index];
1.112 + index++;
1.113 + }
1.114 + }
1.115 + catch (e)
1.116 + {
1.117 + if (lastSeen !== keys[keys.length - 1])
1.118 + throw "Iterator(iterable, false): not everything was iterated!\n" +
1.119 + " last iterated was: " + lastSeen + "\n" +
1.120 + " error: " + e;
1.121 + if (e !== StopIteration)
1.122 + throw "Iterator(iterable, false): missing or invalid StopIteration";
1.123 + }
1.124 +
1.125 + if (iterable.persistedProp != 17)
1.126 + throw "iterable.persistedProp not persisted!";
1.127 +
1.128 + /* Test key-only Iterator */
1.129 + index = 0;
1.130 + lastSeen = undefined;
1.131 + it = Iterator(iterable, true);
1.132 + try
1.133 + {
1.134 + while (true)
1.135 + {
1.136 + var nextVal = it.next();
1.137 + if (nextVal !== keys[index])
1.138 + throw "Iterator(iterable, true): wrong next result\n" +
1.139 + " expected: " + keys[index] + "\n" +
1.140 + " actual: " + nextVal;
1.141 + lastSeen = keys[index];
1.142 + index++;
1.143 + }
1.144 + }
1.145 + catch (e)
1.146 + {
1.147 + if (lastSeen !== keys[keys.length - 1])
1.148 + throw "Iterator(iterable, true): not everything was iterated!\n" +
1.149 + " last iterated was: " + lastSeen + "\n" +
1.150 + " error: " + e;
1.151 + if (e !== StopIteration)
1.152 + throw "Iterator(iterable, true): missing or invalid StopIteration";
1.153 + }
1.154 +
1.155 + if (iterable.persistedProp != 17)
1.156 + throw "iterable.persistedProp not persisted!";
1.157 +}
1.158 +catch (e)
1.159 +{
1.160 + failed = e;
1.161 +}
1.162 +
1.163 +
1.164 +
1.165 +expect = false;
1.166 +actual = failed;
1.167 +
1.168 +reportCompare(expect, actual, summary);
