js/src/tests/ecma_5/Object/15.2.3.3-01.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/ecma_5/Object/15.2.3.3-01.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,329 @@
     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 = 505587;
    1.11 +var summary = 'ES5 Object.getOwnPropertyDescriptor(O)';
    1.12 +var actual = '';
    1.13 +var expect = '';
    1.14 +
    1.15 +printBugNumber(BUGNUMBER);
    1.16 +printStatus (summary);
    1.17 +
    1.18 +/**************
    1.19 + * BEGIN TEST *
    1.20 + **************/
    1.21 +
    1.22 +function assertEq(a, e, msg)
    1.23 +{
    1.24 +  function SameValue(v1, v2)
    1.25 +  {
    1.26 +    if (v1 === 0 && v2 === 0)
    1.27 +      return 1 / v1 === 1 / v2;
    1.28 +    if (v1 !== v1 && v2 !== v2)
    1.29 +      return true;
    1.30 +    return v1 === v2;
    1.31 +  }
    1.32 +
    1.33 +  if (!SameValue(a, e))
    1.34 +  {
    1.35 +    var stack = new Error().stack || "";
    1.36 +    throw "Assertion failed: got " + a + ", expected " + e +
    1.37 +          (msg ? ": " + msg : "") +
    1.38 +          (stack ? "\nStack:\n" + stack : "");
    1.39 +  }
    1.40 +}
    1.41 +
    1.42 +function expectDescriptor(actual, expected)
    1.43 +{
    1.44 +  if (actual === undefined && expected === undefined)
    1.45 +    return;
    1.46 +
    1.47 +  assertEq(typeof actual, "object");
    1.48 +  assertEq(typeof expected, "object");
    1.49 +
    1.50 +  var fields =
    1.51 +    {
    1.52 +      value: true,
    1.53 +      get: true,
    1.54 +      set: true,
    1.55 +      enumerable: true,
    1.56 +      writable: true,
    1.57 +      configurable: true
    1.58 +    };
    1.59 +  for (var p in fields)
    1.60 +    assertEq(actual.hasOwnProperty(p), expected.hasOwnProperty(p), p);
    1.61 +  for (var p in actual)
    1.62 +    assertEq(p in fields, true, p);
    1.63 +  for (var p in expected)
    1.64 +    assertEq(p in fields, true, p);
    1.65 +
    1.66 +  assertEq(actual.hasOwnProperty("value"), actual.hasOwnProperty("writable"));
    1.67 +  assertEq(actual.hasOwnProperty("get"), actual.hasOwnProperty("set"));
    1.68 +  if (actual.hasOwnProperty("value"))
    1.69 +  {
    1.70 +    assertEq(actual.value, expected.value);
    1.71 +    assertEq(actual.writable, expected.writable);
    1.72 +  }
    1.73 +  else
    1.74 +  {
    1.75 +    assertEq(actual.get, expected.get);
    1.76 +    assertEq(actual.set, expected.set);
    1.77 +  }
    1.78 +
    1.79 +  assertEq(actual.hasOwnProperty("enumerable"), true);
    1.80 +  assertEq(actual.hasOwnProperty("configurable"), true);
    1.81 +  assertEq(actual.enumerable, expected.enumerable);
    1.82 +  assertEq(actual.configurable, expected.configurable);
    1.83 +}
    1.84 +
    1.85 +function adjustDescriptorField(o, actual, expect, field)
    1.86 +{
    1.87 +  assertEq(field === "get" || field === "set", true);
    1.88 +  var lookup = "__lookup" + (field === "get" ? "G" : "S") + "etter";
    1.89 +  if (typeof o[lookup] === "function")
    1.90 +    expect[field] = o[lookup](field);
    1.91 +  else
    1.92 +    actual[field] = expect[field] = undefined; /* censor if we can't lookup */
    1.93 +}
    1.94 +
    1.95 +/******************************************************************************/
    1.96 +
    1.97 +var o, pd, expected;
    1.98 +
    1.99 +o = { get x() { return 12; } };
   1.100 +
   1.101 +pd = Object.getOwnPropertyDescriptor(o, "x");
   1.102 +expected =
   1.103 +  {
   1.104 +    set: undefined,
   1.105 +    enumerable: true,
   1.106 +    configurable: true
   1.107 +  };
   1.108 +adjustDescriptorField(o, pd, expected, "get");
   1.109 +
   1.110 +expectDescriptor(pd, expected);
   1.111 +
   1.112 +/******************************************************************************/
   1.113 +
   1.114 +var o2;
   1.115 +
   1.116 +o = Object.create(Object.prototype, { x: {get: function () { return 12; } } });
   1.117 +
   1.118 +pd = Object.getOwnPropertyDescriptor(o, "x");
   1.119 +expected =
   1.120 +  {
   1.121 +    set: undefined,
   1.122 +    enumerable: false,
   1.123 +    configurable: false
   1.124 +  };
   1.125 +adjustDescriptorField(o, pd, expected, "get");
   1.126 +
   1.127 +expectDescriptor(pd, expected);
   1.128 +
   1.129 +o2 = Object.create(o);
   1.130 +assertEq(Object.getOwnPropertyDescriptor(o2, "x"), undefined);
   1.131 +
   1.132 +/******************************************************************************/
   1.133 +
   1.134 +o = {};
   1.135 +o.b = 12;
   1.136 +
   1.137 +pd = Object.getOwnPropertyDescriptor(o, "b");
   1.138 +expected =
   1.139 +  {
   1.140 +    value: 12,
   1.141 +    writable: true,
   1.142 +    enumerable: true,
   1.143 +    configurable: true
   1.144 +  };
   1.145 +expectDescriptor(pd, expected);
   1.146 +
   1.147 +/******************************************************************************/
   1.148 +
   1.149 +o = { get y() { return 17; }, set y(z) { } };
   1.150 +
   1.151 +pd = Object.getOwnPropertyDescriptor(o, "y");
   1.152 +expected =
   1.153 +  {
   1.154 +    enumerable: true,
   1.155 +    configurable: true
   1.156 +  };
   1.157 +adjustDescriptorField(o, pd, expected, "get");
   1.158 +adjustDescriptorField(o, pd, expected, "set");
   1.159 +
   1.160 +expectDescriptor(pd, expected);
   1.161 +
   1.162 +/******************************************************************************/
   1.163 +
   1.164 +o = {};
   1.165 +
   1.166 +pd = Object.getOwnPropertyDescriptor(o, "absent");
   1.167 +
   1.168 +expectDescriptor(pd, undefined);
   1.169 +
   1.170 +/******************************************************************************/
   1.171 +
   1.172 +pd = Object.getOwnPropertyDescriptor([], "length");
   1.173 +expected =
   1.174 +  {
   1.175 +    value: 0,
   1.176 +    writable: true,
   1.177 +    enumerable: false,
   1.178 +    configurable: false
   1.179 +  };
   1.180 +
   1.181 +expectDescriptor(pd, expected);
   1.182 +
   1.183 +pd = Object.getOwnPropertyDescriptor([1], "length");
   1.184 +expected =
   1.185 +  {
   1.186 +    value: 1,
   1.187 +    writable: true,
   1.188 +    enumerable: false,
   1.189 +    configurable: false
   1.190 +  };
   1.191 +
   1.192 +expectDescriptor(pd, expected);
   1.193 +
   1.194 +pd = Object.getOwnPropertyDescriptor([1,], "length");
   1.195 +expected =
   1.196 +  {
   1.197 +    value: 1,
   1.198 +    writable: true,
   1.199 +    enumerable: false,
   1.200 +    configurable: false
   1.201 +  };
   1.202 +
   1.203 +expectDescriptor(pd, expected);
   1.204 +
   1.205 +pd = Object.getOwnPropertyDescriptor([1,,], "length");
   1.206 +expected =
   1.207 +  {
   1.208 +    value: 2,
   1.209 +    writable: true,
   1.210 +    enumerable: false,
   1.211 +    configurable: false
   1.212 +  };
   1.213 +
   1.214 +expectDescriptor(pd, expected);
   1.215 +
   1.216 +/******************************************************************************/
   1.217 +
   1.218 +pd = Object.getOwnPropertyDescriptor(new String("foobar"), "length");
   1.219 +expected =
   1.220 +  {
   1.221 +    value: 6,
   1.222 +    writable: false,
   1.223 +    enumerable: false,
   1.224 +    configurable: false
   1.225 +  };
   1.226 +
   1.227 +expectDescriptor(pd, expected);
   1.228 +
   1.229 +/******************************************************************************/
   1.230 +
   1.231 +function foo() { }
   1.232 +o = foo;
   1.233 +
   1.234 +pd = Object.getOwnPropertyDescriptor(o, "length");
   1.235 +expected =
   1.236 +  {
   1.237 +    value: 0,
   1.238 +    writable: false,
   1.239 +    enumerable: false,
   1.240 +    configurable: false
   1.241 +  };
   1.242 +
   1.243 +expectDescriptor(pd, expected);
   1.244 +
   1.245 +pd = Object.getOwnPropertyDescriptor(o, "prototype");
   1.246 +expected =
   1.247 +  {
   1.248 +    value: foo.prototype,
   1.249 +    writable: true,
   1.250 +    enumerable: false,
   1.251 +    configurable: false
   1.252 +  };
   1.253 +
   1.254 +expectDescriptor(pd, expected);
   1.255 +
   1.256 +/******************************************************************************/
   1.257 +
   1.258 +pd = Object.getOwnPropertyDescriptor(Function, "length");
   1.259 +expected =
   1.260 +  {
   1.261 +    value: 1,
   1.262 +    writable: false,
   1.263 +    enumerable: false,
   1.264 +    configurable: false
   1.265 +  };
   1.266 +
   1.267 +expectDescriptor(pd, expected);
   1.268 +
   1.269 +/******************************************************************************/
   1.270 +
   1.271 +o = /foo/im;
   1.272 +
   1.273 +pd = Object.getOwnPropertyDescriptor(o, "source");
   1.274 +expected =
   1.275 +  {
   1.276 +    value: "foo",
   1.277 +    writable: false,
   1.278 +    enumerable: false,
   1.279 +    configurable: false
   1.280 +  };
   1.281 +
   1.282 +expectDescriptor(pd, expected);
   1.283 +
   1.284 +pd = Object.getOwnPropertyDescriptor(o, "global");
   1.285 +expected =
   1.286 +  {
   1.287 +    value: false,
   1.288 +    writable: false,
   1.289 +    enumerable: false,
   1.290 +    configurable: false
   1.291 +  };
   1.292 +
   1.293 +expectDescriptor(pd, expected);
   1.294 +
   1.295 +pd = Object.getOwnPropertyDescriptor(o, "ignoreCase");
   1.296 +expected =
   1.297 +  {
   1.298 +    value: true,
   1.299 +    writable: false,
   1.300 +    enumerable: false,
   1.301 +    configurable: false
   1.302 +  };
   1.303 +
   1.304 +expectDescriptor(pd, expected);
   1.305 +
   1.306 +pd = Object.getOwnPropertyDescriptor(o, "multiline");
   1.307 +expected =
   1.308 +  {
   1.309 +    value: true,
   1.310 +    writable: false,
   1.311 +    enumerable: false,
   1.312 +    configurable: false
   1.313 +  };
   1.314 +
   1.315 +expectDescriptor(pd, expected);
   1.316 +
   1.317 +pd = Object.getOwnPropertyDescriptor(o, "lastIndex");
   1.318 +expected =
   1.319 +  {
   1.320 +    value: 0,
   1.321 +    writable: true,
   1.322 +    enumerable: false,
   1.323 +    configurable: false
   1.324 +  };
   1.325 +
   1.326 +expectDescriptor(pd, expected);
   1.327 +
   1.328 +/******************************************************************************/
   1.329 +
   1.330 +reportCompare(expect, actual, "Object.getOwnPropertyDescriptor");
   1.331 +
   1.332 +printStatus("All tests passed");

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