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comparison: js/src/tests/ecma/Expressions/11.4.4.js

js/src/tests/ecma/Expressions/11.4.4.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: 11.4.4.js
9 ECMA Section: 11.4.4 Prefix increment operator
10 Description:
11 The production UnaryExpression : ++ UnaryExpression is evaluated as
12 follows:
13
14 1. Evaluate UnaryExpression.
15 2. Call GetValue(Result(1)).
16 3. Call ToNumber(Result(2)).
17 4. Add the value 1 to Result(3), using the same rules as for the +
18 operator (section 11.6.3).
19 5. Call PutValue(Result(1), Result(4)).
20 6. Return Result(4).
21
22 Author: christine@netscape.com
23 Date: 12 november 1997
24 */
25 var SECTION = "11.4.4";
26 var VERSION = "ECMA_1";
27 startTest();
28
29 writeHeaderToLog( SECTION + " Prefix increment operator");
30
31 // special case: var is not defined
32
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", 1, eval("var MYVAR=null; ++MYVAR") );
36 new TestCase( SECTION, "var MYVAR=true; ++MYVAR", 2, eval("var MYVAR=true; ++MYVAR") );
37 new TestCase( SECTION, "var MYVAR=false; ++MYVAR", 1, eval("var MYVAR=false; ++MYVAR") );
38
39 // special numbers
40 // verify return value
41
42 new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;++MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;++MYVAR") );
43 new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;++MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;++MYVAR") );
44 new TestCase( SECTION, "var MYVAR=Number.NaN;++MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;++MYVAR") );
45
46 // verify value of variable
47
48 new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;++MYVAR;MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;++MYVAR;MYVAR") );
49 new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;++MYVAR;MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;++MYVAR;MYVAR") );
50 new TestCase( SECTION, "var MYVAR=Number.NaN;++MYVAR;MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;++MYVAR;MYVAR") );
51
52
53 // number primitives
54 new TestCase( SECTION, "var MYVAR=0;++MYVAR", 1, eval("var MYVAR=0;++MYVAR") );
55 new TestCase( SECTION, "var MYVAR=0.2345;++MYVAR", 1.2345, eval("var MYVAR=0.2345;++MYVAR") );
56 new TestCase( SECTION, "var MYVAR=-0.2345;++MYVAR", 0.7655, eval("var MYVAR=-0.2345;++MYVAR") );
57
58 // verify value of variable
59
60 new TestCase( SECTION, "var MYVAR=0;++MYVAR;MYVAR", 1, eval("var MYVAR=0;++MYVAR;MYVAR") );
61 new TestCase( SECTION, "var MYVAR=0.2345;++MYVAR;MYVAR", 1.2345, eval("var MYVAR=0.2345;++MYVAR;MYVAR") );
62 new TestCase( SECTION, "var MYVAR=-0.2345;++MYVAR;MYVAR", 0.7655, eval("var MYVAR=-0.2345;++MYVAR;MYVAR") );
63 new TestCase( SECTION, "var MYVAR=0;++MYVAR;MYVAR", 1, eval("var MYVAR=0;++MYVAR;MYVAR") );
64 new TestCase( SECTION, "var MYVAR=0;++MYVAR;MYVAR", 1, eval("var MYVAR=0;++MYVAR;MYVAR") );
65 new TestCase( SECTION, "var MYVAR=0;++MYVAR;MYVAR", 1, eval("var MYVAR=0;++MYVAR;MYVAR") );
66
67 // boolean values
68 // verify return value
69
70 new TestCase( SECTION, "var MYVAR=true;++MYVAR", 2, eval("var MYVAR=true;++MYVAR") );
71 new TestCase( SECTION, "var MYVAR=false;++MYVAR", 1, eval("var MYVAR=false;++MYVAR") );
72 // verify value of variable
73
74 new TestCase( SECTION, "var MYVAR=true;++MYVAR;MYVAR", 2, eval("var MYVAR=true;++MYVAR;MYVAR") );
75 new TestCase( SECTION, "var MYVAR=false;++MYVAR;MYVAR", 1, eval("var MYVAR=false;++MYVAR;MYVAR") );
76
77 // boolean objects
78 // verify return value
79
80 new TestCase( SECTION, "var MYVAR=new Boolean(true);++MYVAR", 2, eval("var MYVAR=true;++MYVAR") );
81 new TestCase( SECTION, "var MYVAR=new Boolean(false);++MYVAR", 1, eval("var MYVAR=false;++MYVAR") );
82 // verify value of variable
83
84 new TestCase( SECTION, "var MYVAR=new Boolean(true);++MYVAR;MYVAR", 2, eval("var MYVAR=new Boolean(true);++MYVAR;MYVAR") );
85 new TestCase( SECTION, "var MYVAR=new Boolean(false);++MYVAR;MYVAR", 1, eval("var MYVAR=new Boolean(false);++MYVAR;MYVAR") );
86
87 // string primitives
88 new TestCase( SECTION, "var MYVAR='string';++MYVAR", Number.NaN, eval("var MYVAR='string';++MYVAR") );
89 new TestCase( SECTION, "var MYVAR='12345';++MYVAR", 12346, eval("var MYVAR='12345';++MYVAR") );
90 new TestCase( SECTION, "var MYVAR='-12345';++MYVAR", -12344, eval("var MYVAR='-12345';++MYVAR") );
91 new TestCase( SECTION, "var MYVAR='0Xf';++MYVAR", 16, eval("var MYVAR='0Xf';++MYVAR") );
92 new TestCase( SECTION, "var MYVAR='077';++MYVAR", 78, eval("var MYVAR='077';++MYVAR") );
93 new TestCase( SECTION, "var MYVAR=''; ++MYVAR", 1, eval("var MYVAR='';++MYVAR") );
94
95 // verify value of variable
96
97 new TestCase( SECTION, "var MYVAR='string';++MYVAR;MYVAR", Number.NaN, eval("var MYVAR='string';++MYVAR;MYVAR") );
98 new TestCase( SECTION, "var MYVAR='12345';++MYVAR;MYVAR", 12346, eval("var MYVAR='12345';++MYVAR;MYVAR") );
99 new TestCase( SECTION, "var MYVAR='-12345';++MYVAR;MYVAR", -12344, eval("var MYVAR='-12345';++MYVAR;MYVAR") );
100 new TestCase( SECTION, "var MYVAR='0xf';++MYVAR;MYVAR", 16, eval("var MYVAR='0xf';++MYVAR;MYVAR") );
101 new TestCase( SECTION, "var MYVAR='077';++MYVAR;MYVAR", 78, eval("var MYVAR='077';++MYVAR;MYVAR") );
102 new TestCase( SECTION, "var MYVAR='';++MYVAR;MYVAR", 1, eval("var MYVAR='';++MYVAR;MYVAR") );
103
104 // string objects
105 new TestCase( SECTION, "var MYVAR=new String('string');++MYVAR", Number.NaN, eval("var MYVAR=new String('string');++MYVAR") );
106 new TestCase( SECTION, "var MYVAR=new String('12345');++MYVAR", 12346, eval("var MYVAR=new String('12345');++MYVAR") );
107 new TestCase( SECTION, "var MYVAR=new String('-12345');++MYVAR", -12344, eval("var MYVAR=new String('-12345');++MYVAR") );
108 new TestCase( SECTION, "var MYVAR=new String('0Xf');++MYVAR", 16, eval("var MYVAR=new String('0Xf');++MYVAR") );
109 new TestCase( SECTION, "var MYVAR=new String('077');++MYVAR", 78, eval("var MYVAR=new String('077');++MYVAR") );
110 new TestCase( SECTION, "var MYVAR=new String(''); ++MYVAR", 1, eval("var MYVAR=new String('');++MYVAR") );
111
112 // verify value of variable
113
114 new TestCase( SECTION, "var MYVAR=new String('string');++MYVAR;MYVAR", Number.NaN, eval("var MYVAR=new String('string');++MYVAR;MYVAR") );
115 new TestCase( SECTION, "var MYVAR=new String('12345');++MYVAR;MYVAR", 12346, eval("var MYVAR=new String('12345');++MYVAR;MYVAR") );
116 new TestCase( SECTION, "var MYVAR=new String('-12345');++MYVAR;MYVAR", -12344, eval("var MYVAR=new String('-12345');++MYVAR;MYVAR") );
117 new TestCase( SECTION, "var MYVAR=new String('0xf');++MYVAR;MYVAR", 16, eval("var MYVAR=new String('0xf');++MYVAR;MYVAR") );
118 new TestCase( SECTION, "var MYVAR=new String('077');++MYVAR;MYVAR", 78, eval("var MYVAR=new String('077');++MYVAR;MYVAR") );
119 new TestCase( SECTION, "var MYVAR=new String('');++MYVAR;MYVAR", 1, eval("var MYVAR=new String('');++MYVAR;MYVAR") );
120
121 test();
122

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