1// Copyright JS Foundation and other contributors, http://js.foundation
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15// helper function - simple implementation
16Array.prototype.equals = function (array) {
17  if (this.length != array.length)
18    return false;
19
20  for (var i = 0; i < this.length; i++) {
21    if (this[i] instanceof Array && array[i] instanceof Array) {
22      if (!this[i].equals(array[i]))
23        return false;
24      }
25      else if (this[i] != array[i]) {
26        return false;
27    }
28  }
29
30  return true;
31}
32
33// check function type
34try {
35  [0].map(new Object());
36  assert(false);
37} catch(e) {
38  assert(e instanceof TypeError);
39}
40
41// various checks
42assert ([1, 4, 9].map(Math.sqrt).equals([1, 2, 3]));
43
44assert (isNaN([1, 4, "X"].map(Number)[2]));
45
46var func = function(val, idx) {
47  return val + idx;
48};
49
50assert ([1, 4, 9].map(func).equals([1,5,11]));
51
52assert ([1, "X", 10].map(func).equals([1, "X1", 12]));
53
54var arr = [1,2,3];
55arr.length = 5;
56assert(arr.map(func).length === arr.length);
57
58var long_array = [0, 1];
59assert (long_array.map(func).equals([0,2]));
60
61long_array[100] = 1;
62assert (long_array.map(func).equals([0,2,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,101]));
63
64var arr = [1,2];
65Array.prototype[0] = 3;
66var newArr = arr.map(function(value) { return value; });
67delete Array.prototype[0];
68assert(newArr.hasOwnProperty("0"));
69assert(newArr[0] === 1);
70
71// check behavior when unable to get length
72var obj = {};
73Object.defineProperty(obj, 'length', { 'get' : function () {throw new ReferenceError ("foo"); } });
74obj.map = Array.prototype.map;
75
76try {
77  obj.map(func);
78  assert(false);
79} catch (e) {
80  assert(e.message === "foo");
81  assert(e instanceof ReferenceError);
82}
83
84// check behavior when unable to get element
85var obj = {}
86obj.length = 1;
87Object.defineProperty(obj, '0', { 'get' : function () {throw new ReferenceError ("foo"); } });
88obj.map = Array.prototype.map
89
90try {
91  obj.map(func);
92  assert(false);
93} catch (e) {
94  assert(e.message === "foo");
95  assert(e instanceof ReferenceError);
96}
97
98// check thisArg
99var thisArg = {add: 10};
100var func2 = function(value) {
101  return this.add + value;
102}
103assert([1,2].map(func2, thisArg).equals([11, 12]));
104
105// check passed Object
106var array_example = [1,2];
107Object.defineProperty(array_example, 'const', { 'get' : function () {return "CT";} });
108var func3 = function(value, idx, thisobj) {
109  return value * idx + thisobj.const;
110}
111assert(array_example.map(func3).equals(["0CT", "2CT"]));
112