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comparison: js/src/tests/ecma/Array/15.4.4.4-1.js

js/src/tests/ecma/Array/15.4.4.4-1.js

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TOR_BUG_3246
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129ffea94266
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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6
7 /**
8 File Name: 15.4.4.3-1.js
9 ECMA Section: 15.4.4.3-1 Array.prototype.reverse()
10 Description:
11
12 The elements of the array are rearranged so as to reverse their order.
13 This object is returned as the result of the call.
14
15 1. Call the [[Get]] method of this object with argument "length".
16 2. Call ToUint32(Result(1)).
17 3. Compute floor(Result(2)/2).
18 4. Let k be 0.
19 5. If k equals Result(3), return this object.
20 6. Compute Result(2)k1.
21 7. Call ToString(k).
22 8. ToString(Result(6)).
23 9. Call the [[Get]] method of this object with argument Result(7).
24 10. Call the [[Get]] method of this object with argument Result(8).
25 11. If this object has a property named by Result(8), go to step 12; but
26 if this object has no property named by Result(8), then go to either
27 step 12 or step 14, depending on the implementation.
28 12. Call the [[Put]] method of this object with arguments Result(7) and
29 Result(10).
30 13. Go to step 15.
31 14. Call the [[Delete]] method on this object, providing Result(7) as the
32 name of the property to delete.
33 15. If this object has a property named by Result(7), go to step 16; but if
34 this object has no property named by Result(7), then go to either step 16
35 or step 18, depending on the implementation.
36 16. Call the [[Put]] method of this object with arguments Result(8) and
37 Result(9).
38 17. Go to step 19.
39 18. Call the [[Delete]] method on this object, providing Result(8) as the
40 name of the property to delete.
41 19. Increase k by 1.
42 20. Go to step 5.
43
44 Note that the reverse function is intentionally generic; it does not require
45 that its this value be an Array object. Therefore it can be transferred to other
46 kinds of objects for use as a method. Whether the reverse function can be applied
47 successfully to a host object is implementation dependent.
48
49 Note: Array.prototype.reverse allows some flexibility in implementation
50 regarding array indices that have not been populated. This test covers the
51 cases in which unpopulated indices are not deleted, since the JavaScript
52 implementation does not delete uninitialzed indices.
53
54 Author: christine@netscape.com
55 Date: 7 october 1997
56 */
57 var SECTION = "15.4.4.4-1";
58 var VERSION = "ECMA_1";
59 var BUGNUMBER="123724";
60 startTest();
61
62 writeHeaderToLog( SECTION + " Array.prototype.reverse()");
63
64 var ARR_PROTOTYPE = Array.prototype;
65
66 new TestCase( SECTION,
67 "Array.prototype.reverse.length",
68 0,
69 Array.prototype.reverse.length );
70
71 new TestCase( SECTION,
72 "delete Array.prototype.reverse.length",
73 false,
74 delete Array.prototype.reverse.length );
75
76 new TestCase( SECTION,
77 "delete Array.prototype.reverse.length; Array.prototype.reverse.length",
78 0,
79 eval("delete Array.prototype.reverse.length; Array.prototype.reverse.length") );
80
81 // length of array is 0
82 new TestCase( SECTION,
83 "var A = new Array(); A.reverse(); A.length",
84 0,
85 eval("var A = new Array(); A.reverse(); A.length") );
86
87 // length of array is 1
88 var A = new Array(true);
89 var R = Reverse(A);
90
91 new TestCase( SECTION,
92 "var A = new Array(true); A.reverse(); A.length",
93 R.length,
94 eval("var A = new Array(true); A.reverse(); A.length") );
95
96 CheckItems( R, A );
97
98 // length of array is 2
99 var S = "var A = new Array( true,false )";
100 eval(S);
101 var R = Reverse(A);
102
103 new TestCase( SECTION,
104 S +"; A.reverse(); A.length",
105 R.length,
106 eval( S + "; A.reverse(); A.length") );
107
108 CheckItems( R, A );
109
110 // length of array is 3
111 var S = "var A = new Array( true,false,null )";
112 eval(S);
113 var R = Reverse(A);
114
115 new TestCase( SECTION,
116 S +"; A.reverse(); A.length",
117 R.length,
118 eval( S + "; A.reverse(); A.length") );
119
120 CheckItems( R, A );
121
122 // length of array is 4
123 var S = "var A = new Array( true,false,null,void 0 )";
124 eval(S);
125 var R = Reverse(A);
126
127 new TestCase( SECTION,
128 S +"; A.reverse(); A.length",
129 R.length,
130 eval( S + "; A.reverse(); A.length") );
131 CheckItems( R, A );
132
133
134 // some array indexes have not been set
135 var S = "var A = new Array(); A[8] = 'hi', A[3] = 'yo'";
136 eval(S);
137 var R = Reverse(A);
138
139 new TestCase( SECTION,
140 S +"; A.reverse(); A.length",
141 R.length,
142 eval( S + "; A.reverse(); A.length") );
143
144 CheckItems( R, A );
145
146
147 var OBJECT_OBJECT = new Object();
148 var FUNCTION_OBJECT = new Function( 'return this' );
149 var BOOLEAN_OBJECT = new Boolean;
150 var DATE_OBJECT = new Date(0);
151 var STRING_OBJECT = new String('howdy');
152 var NUMBER_OBJECT = new Number(Math.PI);
153 var ARRAY_OBJECT= new Array(1000);
154
155 var args = "null, void 0, Math.pow(2,32), 1.234e-32, OBJECT_OBJECT, BOOLEAN_OBJECT, FUNCTION_OBJECT, DATE_OBJECT, STRING_OBJECT,"+
156 "ARRAY_OBJECT, NUMBER_OBJECT, Math, true, false, 123, '90210'";
157
158 var S = "var A = new Array("+args+")";
159 eval(S);
160 var R = Reverse(A);
161
162 new TestCase( SECTION,
163 S +"; A.reverse(); A.length",
164 R.length,
165 eval( S + "; A.reverse(); A.length") );
166
167 CheckItems( R, A );
168
169 var limit = 1000;
170 var args = "";
171 for (var i = 0; i < limit; i++ ) {
172 args += i +"";
173 if ( i + 1 < limit ) {
174 args += ",";
175 }
176 }
177
178 var S = "var A = new Array("+args+")";
179 eval(S);
180 var R = Reverse(A);
181
182 new TestCase( SECTION,
183 S +"; A.reverse(); A.length",
184 R.length,
185 eval( S + "; A.reverse(); A.length") );
186
187 CheckItems( R, A );
188
189 var S = "var MYOBJECT = new Object_1( \"void 0, 1, null, 2, \'\'\" )";
190 eval(S);
191 var R = Reverse( A );
192
193 new TestCase( SECTION,
194 S +"; A.reverse(); A.length",
195 R.length,
196 eval( S + "; A.reverse(); A.length") );
197
198 CheckItems( R, A );
199
200 test();
201
202 function CheckItems( R, A ) {
203 for ( var i = 0; i < R.length; i++ ) {
204 new TestCase(
205 SECTION,
206 "A["+i+ "]",
207 R[i],
208 A[i] );
209 }
210 }
211
212 function Object_1( value ) {
213 this.array = value.split(",");
214 this.length = this.array.length;
215 for ( var i = 0; i < this.length; i++ ) {
216 this[i] = eval(this.array[i]);
217 }
218 this.join = Array.prototype.reverse;
219 this.getClass = Object.prototype.toString;
220 }
221
222 function Reverse( array ) {
223 var r2 = array.length;
224 var k = 0;
225 var r3 = Math.floor( r2/2 );
226 if ( r3 == k ) {
227 return array;
228 }
229
230 for ( k = 0; k < r3; k++ ) {
231 var r6 = r2 - k - 1;
232 // var r7 = String( k );
233 var r7 = k;
234 var r8 = String( r6 );
235
236 var r9 = array[r7];
237 var r10 = array[r8];
238
239 array[r7] = r10;
240 array[r8] = r9;
241 }
242
243 return array;
244 }
245
246 function Iterate( array ) {
247 for ( var i = 0; i < array.length; i++ ) {
248 // print( i+": "+ array[String(i)] );
249 }
250 }
251
252 function Object_1( value ) {
253 this.array = value.split(",");
254 this.length = this.array.length;
255 for ( var i = 0; i < this.length; i++ ) {
256 this[i] = this.array[i];
257 }
258 this.reverse = Array.prototype.reverse;
259 this.getClass = Object.prototype.toString;
260 }

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