1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
--TEST--
Test mt_rand() - basic function test mt_rand()
--FILE--
<?php
$default_max = mt_getrandmax();
echo "\nmt_rand() tests with default min and max value (i.e 0 thru ", $default_max, ")\n";
for ($i = 0; $i < 100; $i++) {
$res = mt_rand();
// By default RAND_MAX is 32768 although no constant is defined for it for user space apps
if (!is_int($res) || $res < 0 || $res > $default_max) {
break;
}
}
if ($i != 100) {
echo "FAILED: res = ", $res, " min = 0 max = ", $default_max, "\n";
} else {
echo "PASSED: range min = 0 max = ", $default_max, "\n";
}
echo "\nmt_rand() tests with defined min and max value\n";
$min = array(10,
100,
10.5,
10.5e3,
0x10,
0400);
$max = array(100,
1000,
19.5,
10.5e5,
0x10000,
0700);
for ($x = 0; $x < count($min); $x++) {
for ($i = 0; $i < 100; $i++) {
$res = mt_rand($min[$x], $max[$x]);
if (!is_int($res) || $res < intval($min[$x]) || $res > intval($max[$x])) {
echo "FAILED: res = ", $res, " min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n";
break;
}
}
if ($i == 100) {
echo "PASSED: range min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n";
}
}
echo "\nNon-numeric cases\n";
$min = array(true,
false,
null,
"10",
"10.5");
// Expected numerical equivalent of above non-numerics
$minval = array(1,
0,
0,
10,
10);
for ($x = 0; $x < count($min); $x++) {
for ($i = 0; $i < 100; $i++) {
$res = mt_rand($min[$x], 100);
if (!is_int($res) || $res < intval($minval[$x]) || $res > 100) {
echo "FAILED: res = ", $res, " min = ", intval($min[$x]), " max = ", intval($max[$x]), "\n";
break;
}
}
if ($i == 100) {
echo "PASSED range min = ", intval($min[$x]), " max = 100\n";
}
}
?>
--EXPECT--
mt_rand() tests with default min and max value (i.e 0 thru 2147483647)
PASSED: range min = 0 max = 2147483647
mt_rand() tests with defined min and max value
PASSED: range min = 10 max = 100
PASSED: range min = 100 max = 1000
PASSED: range min = 10 max = 19
PASSED: range min = 10500 max = 1050000
PASSED: range min = 16 max = 65536
PASSED: range min = 256 max = 448
Non-numeric cases
PASSED range min = 1 max = 100
PASSED range min = 0 max = 100
PASSED range min = 0 max = 100
PASSED range min = 10 max = 100
PASSED range min = 10 max = 100
|
