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