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comparison: js/src/tests/ecma/Expressions/11.3.2.js

js/src/tests/ecma/Expressions/11.3.2.js

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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: 11.3.2.js
9 ECMA Section: 11.3.2 Postfix decrement operator
10 Description:
11
12 11.3.2 Postfix decrement operator
13
14 The production MemberExpression : MemberExpression -- is evaluated as follows:
15 1. Evaluate MemberExpression.
16 2. Call GetValue(Result(1)).
17 3. Call ToNumber(Result(2)).
18 4. Subtract the value 1 from Result(3), using the same rules as for the -
19 operator (section 0).
20 5. Call PutValue(Result(1), Result(4)).
21 6. Return Result(3).
22
23 Author: christine@netscape.com
24 Date: 12 november 1997
25 */
26 var SECTION = "11.3.2";
27 var VERSION = "ECMA_1";
28 startTest();
29
30 writeHeaderToLog( SECTION + " Postfix decrement operator");
31
32 // special numbers
33 new TestCase( SECTION, "var MYVAR; MYVAR--", NaN, eval("var MYVAR; MYVAR--") );
34 new TestCase( SECTION, "var MYVAR= void 0; MYVAR--", NaN, eval("var MYVAR=void 0; MYVAR--") );
35 new TestCase( SECTION, "var MYVAR=null; MYVAR--", 0, eval("var MYVAR=null; MYVAR--") );
36 new TestCase( SECTION, "var MYVAR=true; MYVAR--", 1, eval("var MYVAR=true; MYVAR--") );
37 new TestCase( SECTION, "var MYVAR=false; MYVAR--", 0, eval("var MYVAR=false; MYVAR--") );
38
39 // verify return value
40
41 new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--") );
42 new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--") );
43 new TestCase( SECTION, "var MYVAR=Number.NaN;MYVAR--", Number.NaN, eval("var MYVAR=Number.NaN;MYVAR--") );
44
45 // verify value of variable
46
47 new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR") );
48 new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR") );
49 new TestCase( SECTION, "var MYVAR=Number.NaN;MYVAR--;MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;MYVAR--;MYVAR") );
50
51 // number primitives
52 new TestCase( SECTION, "var MYVAR=0;MYVAR--", 0, eval("var MYVAR=0;MYVAR--") );
53 new TestCase( SECTION, "var MYVAR=0.2345;MYVAR--", 0.2345, eval("var MYVAR=0.2345;MYVAR--") );
54 new TestCase( SECTION, "var MYVAR=-0.2345;MYVAR--", -0.2345, eval("var MYVAR=-0.2345;MYVAR--") );
55
56 // verify value of variable
57
58 new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") );
59 new TestCase( SECTION, "var MYVAR=0.2345;MYVAR--;MYVAR", -0.7655, eval("var MYVAR=0.2345;MYVAR--;MYVAR") );
60 new TestCase( SECTION, "var MYVAR=-0.2345;MYVAR--;MYVAR", -1.2345, eval("var MYVAR=-0.2345;MYVAR--;MYVAR") );
61 new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") );
62 new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") );
63 new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") );
64
65 // boolean values
66 // verify return value
67
68 new TestCase( SECTION, "var MYVAR=true;MYVAR--", 1, eval("var MYVAR=true;MYVAR--") );
69 new TestCase( SECTION, "var MYVAR=false;MYVAR--", 0, eval("var MYVAR=false;MYVAR--") );
70 // verify value of variable
71
72 new TestCase( SECTION, "var MYVAR=true;MYVAR--;MYVAR", 0, eval("var MYVAR=true;MYVAR--;MYVAR") );
73 new TestCase( SECTION, "var MYVAR=false;MYVAR--;MYVAR", -1, eval("var MYVAR=false;MYVAR--;MYVAR") );
74
75 // boolean objects
76 // verify return value
77
78 new TestCase( SECTION, "var MYVAR=new Boolean(true);MYVAR--", 1, eval("var MYVAR=true;MYVAR--") );
79 new TestCase( SECTION, "var MYVAR=new Boolean(false);MYVAR--", 0, eval("var MYVAR=false;MYVAR--") );
80 // verify value of variable
81
82 new TestCase( SECTION, "var MYVAR=new Boolean(true);MYVAR--;MYVAR", 0, eval("var MYVAR=new Boolean(true);MYVAR--;MYVAR") );
83 new TestCase( SECTION, "var MYVAR=new Boolean(false);MYVAR--;MYVAR", -1, eval("var MYVAR=new Boolean(false);MYVAR--;MYVAR") );
84
85 // string primitives
86 new TestCase( SECTION, "var MYVAR='string';MYVAR--", Number.NaN, eval("var MYVAR='string';MYVAR--") );
87 new TestCase( SECTION, "var MYVAR='12345';MYVAR--", 12345, eval("var MYVAR='12345';MYVAR--") );
88 new TestCase( SECTION, "var MYVAR='-12345';MYVAR--", -12345, eval("var MYVAR='-12345';MYVAR--") );
89 new TestCase( SECTION, "var MYVAR='0Xf';MYVAR--", 15, eval("var MYVAR='0Xf';MYVAR--") );
90 new TestCase( SECTION, "var MYVAR='077';MYVAR--", 77, eval("var MYVAR='077';MYVAR--") );
91 new TestCase( SECTION, "var MYVAR=''; MYVAR--", 0, eval("var MYVAR='';MYVAR--") );
92
93 // verify value of variable
94
95 new TestCase( SECTION, "var MYVAR='string';MYVAR--;MYVAR", Number.NaN, eval("var MYVAR='string';MYVAR--;MYVAR") );
96 new TestCase( SECTION, "var MYVAR='12345';MYVAR--;MYVAR", 12344, eval("var MYVAR='12345';MYVAR--;MYVAR") );
97 new TestCase( SECTION, "var MYVAR='-12345';MYVAR--;MYVAR", -12346, eval("var MYVAR='-12345';MYVAR--;MYVAR") );
98 new TestCase( SECTION, "var MYVAR='0xf';MYVAR--;MYVAR", 14, eval("var MYVAR='0xf';MYVAR--;MYVAR") );
99 new TestCase( SECTION, "var MYVAR='077';MYVAR--;MYVAR", 76, eval("var MYVAR='077';MYVAR--;MYVAR") );
100 new TestCase( SECTION, "var MYVAR='';MYVAR--;MYVAR", -1, eval("var MYVAR='';MYVAR--;MYVAR") );
101
102 // string objects
103 new TestCase( SECTION, "var MYVAR=new String('string');MYVAR--", Number.NaN, eval("var MYVAR=new String('string');MYVAR--") );
104 new TestCase( SECTION, "var MYVAR=new String('12345');MYVAR--", 12345, eval("var MYVAR=new String('12345');MYVAR--") );
105 new TestCase( SECTION, "var MYVAR=new String('-12345');MYVAR--", -12345, eval("var MYVAR=new String('-12345');MYVAR--") );
106 new TestCase( SECTION, "var MYVAR=new String('0Xf');MYVAR--", 15, eval("var MYVAR=new String('0Xf');MYVAR--") );
107 new TestCase( SECTION, "var MYVAR=new String('077');MYVAR--", 77, eval("var MYVAR=new String('077');MYVAR--") );
108 new TestCase( SECTION, "var MYVAR=new String(''); MYVAR--", 0, eval("var MYVAR=new String('');MYVAR--") );
109
110 // verify value of variable
111
112 new TestCase( SECTION, "var MYVAR=new String('string');MYVAR--;MYVAR", Number.NaN, eval("var MYVAR=new String('string');MYVAR--;MYVAR") );
113 new TestCase( SECTION, "var MYVAR=new String('12345');MYVAR--;MYVAR", 12344, eval("var MYVAR=new String('12345');MYVAR--;MYVAR") );
114 new TestCase( SECTION, "var MYVAR=new String('-12345');MYVAR--;MYVAR", -12346, eval("var MYVAR=new String('-12345');MYVAR--;MYVAR") );
115 new TestCase( SECTION, "var MYVAR=new String('0xf');MYVAR--;MYVAR", 14, eval("var MYVAR=new String('0xf');MYVAR--;MYVAR") );
116 new TestCase( SECTION, "var MYVAR=new String('077');MYVAR--;MYVAR", 76, eval("var MYVAR=new String('077');MYVAR--;MYVAR") );
117 new TestCase( SECTION, "var MYVAR=new String('');MYVAR--;MYVAR", -1, eval("var MYVAR=new String('');MYVAR--;MYVAR") );
118
119 test();

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