1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/ecma_5/Array/length-truncate-nonconfigurable-sparse.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,110 @@
1.4 +/*
1.5 + * Any copyright is dedicated to the Public Domain.
1.6 + * http://creativecommons.org/licenses/publicdomain/
1.7 + * Contributor:
1.8 + * Jeff Walden <jwalden+code@mit.edu>
1.9 + */
1.10 +
1.11 +//-----------------------------------------------------------------------------
1.12 +var BUGNUMBER = 858381;
1.13 +var summary =
1.14 + "Array length redefinition behavior with non-configurable elements";
1.15 +
1.16 +print(BUGNUMBER + ": " + summary);
1.17 +
1.18 +/**************
1.19 + * BEGIN TEST *
1.20 + **************/
1.21 +
1.22 +function addDataProperty(obj, prop, value, enumerable, configurable, writable)
1.23 +{
1.24 + var desc =
1.25 + { enumerable: enumerable,
1.26 + configurable: configurable,
1.27 + writable: writable,
1.28 + value: value };
1.29 + Object.defineProperty(obj, prop, desc);
1.30 +}
1.31 +
1.32 +function nonstrict()
1.33 +{
1.34 + var arr = [0, , 2, , , 5];
1.35 +
1.36 + addDataProperty(arr, 31415926, "foo", true, true, true);
1.37 + addDataProperty(arr, 123456789, "bar", true, true, false);
1.38 + addDataProperty(arr, 8675309, "qux", false, true, true);
1.39 + addDataProperty(arr, 1735039, "eit", false, true, false);
1.40 + addDataProperty(arr, 987654321, "fun", false, true, false);
1.41 +
1.42 + // non-array indexes to spice things up
1.43 + addDataProperty(arr, "foopy", "sdfsd", false, false, false);
1.44 + addDataProperty(arr, 4294967296, "psych", true, false, false);
1.45 + addDataProperty(arr, 4294967295, "psych", true, false, false);
1.46 +
1.47 + addDataProperty(arr, 27182818, "eep", false, false, false);
1.48 +
1.49 + // Truncate...but only as far as possible.
1.50 + arr.length = 1;
1.51 +
1.52 + assertEq(arr.length, 27182819);
1.53 +
1.54 + var props = Object.getOwnPropertyNames(arr).sort();
1.55 + var expected =
1.56 + ["0", "2", "5", "1735039", "8675309", "27182818",
1.57 + "foopy", "4294967296", "4294967295", "length"].sort();
1.58 +
1.59 + assertEq(props.length, expected.length);
1.60 + for (var i = 0; i < props.length; i++)
1.61 + assertEq(props[i], expected[i], "unexpected property: " + props[i]);
1.62 +}
1.63 +nonstrict();
1.64 +
1.65 +function strict()
1.66 +{
1.67 + "use strict";
1.68 +
1.69 + var arr = [0, , 2, , , 5];
1.70 +
1.71 + addDataProperty(arr, 31415926, "foo", true, true, true);
1.72 + addDataProperty(arr, 123456789, "bar", true, true, false);
1.73 + addDataProperty(arr, 8675309, "qux", false, true, true);
1.74 + addDataProperty(arr, 1735039, "eit", false, true, false);
1.75 + addDataProperty(arr, 987654321, "fun", false, true, false);
1.76 +
1.77 + // non-array indexes to spice things up
1.78 + addDataProperty(arr, "foopy", "sdfsd", false, false, false);
1.79 + addDataProperty(arr, 4294967296, "psych", true, false, false);
1.80 + addDataProperty(arr, 4294967295, "psych", true, false, false);
1.81 +
1.82 + addDataProperty(arr, 27182818, "eep", false, false, false);
1.83 +
1.84 + try
1.85 + {
1.86 + arr.length = 1;
1.87 + throw new Error("didn't throw?!");
1.88 + }
1.89 + catch (e)
1.90 + {
1.91 + assertEq(e instanceof TypeError, true,
1.92 + "non-configurable property should trigger TypeError, got " + e);
1.93 + }
1.94 +
1.95 + assertEq(arr.length, 27182819);
1.96 +
1.97 + var props = Object.getOwnPropertyNames(arr).sort();
1.98 + var expected =
1.99 + ["0", "2", "5", "1735039", "8675309", "27182818",
1.100 + "foopy", "4294967296", "4294967295", "length"].sort();
1.101 +
1.102 + assertEq(props.length, expected.length);
1.103 + for (var i = 0; i < props.length; i++)
1.104 + assertEq(props[i], expected[i], "unexpected property: " + props[i]);
1.105 +}
1.106 +strict();
1.107 +
1.108 +/******************************************************************************/
1.109 +
1.110 +if (typeof reportCompare === "function")
1.111 + reportCompare(true, true);
1.112 +
1.113 +print("Tests complete");
