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File: tests/unit_with_basedir/RandomIntTest.php

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File: tests/unit_with_basedir/RandomIntTest.php
Role: Class source
Content type: text/plain
Description: Class source
Class: random_compat
Provide random_bytes and random_int functions
Author: By
Last change:
Date: 2 years ago
Size: 3,029 bytes
 

 

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<?php
class RandomIntTest extends PHPUnit_Framework_TestCase
{
    const
NO_BASEDIR = 'There is no suitable CSPRNG installed on your system';
   
    public function
testFuncExists()
    {
       
$this->assertTrue(function_exists('random_int'));
    }
   
    public function
testOutput()
    {
        try {
           
$half_neg_max = (~PHP_INT_MAX / 2);

           
$integers = array(
               
random_int(0, 1000),
               
random_int(1001,2000),
               
random_int(-100, -10),
               
random_int(-1000, 1000),
               
random_int(~PHP_INT_MAX, PHP_INT_MAX),
               
random_int("0", "1"),
               
random_int(0.11111, 0.99999),
               
random_int($half_neg_max, PHP_INT_MAX),
               
random_int(0.0, 255.0),
               
random_int(-4.5, -4.5),
               
random_int("1337e3","1337e3")
            );

           
$this->assertFalse($integers[0] === $integers[1]);
           
$this->assertTrue($integers[0] >= 0 && $integers[0] <= 1000);
           
$this->assertTrue($integers[1] >= 1001 && $integers[1] <= 2000);
           
$this->assertTrue($integers[2] >= -100 && $integers[2] <= -10);
           
$this->assertTrue($integers[3] >= -1000 && $integers[3] <= 1000);
           
$this->assertTrue($integers[4] >= ~PHP_INT_MAX && $integers[4] <= PHP_INT_MAX);
           
$this->assertTrue($integers[5] >= 0 && $integers[5] <= 1);
           
$this->assertTrue($integers[6] === 0);
           
$this->assertTrue($integers[7] >= $half_neg_max && $integers[7] <= PHP_INT_MAX);
           
$this->assertTrue($integers[8] >= 0 && $integers[8] <= 255);
           
$this->assertTrue($integers[9] === -4);
           
$this->assertTrue($integers[10] === 1337000);
        } catch (
Exception $ex) {
           
$this->assertEquals(
               
$ex->getMessage(),
               
self::NO_BASEDIR
           
);
            return;
        }
       
        try {
           
$h = random_int("2147483648", "2147483647");
           
$i = random_int("9223372036854775808", "9223372036854775807");
           
$this->assertFalse(is_int($i));
           
$h = random_int("-2147483648", "2147483647");
           
$i = random_int("-9223372036854775808", "9223372036854775807");
           
$this->fail("One of these options should have thrown an exception.");
        } catch (
Error $ex) {
           
$this->assertTrue($ex instanceof Error);
        } catch (
Exception $ex) {
           
$this->assertTrue($ex instanceof Exception);
        }
    }

    public function
testRandomRange()
    {
        try {
           
$try = 64;
           
$maxLen = strlen(~PHP_INT_MAX);
            do {
               
$rand = random_int(~PHP_INT_MAX, PHP_INT_MAX);
            } while (
strlen($rand) !== $maxLen && $try--);

           
$this->assertGreaterThan(0, $try);
        } catch (
Exception $ex) {
           
$this->assertEquals(
               
$ex->getMessage(),
               
self::NO_BASEDIR
           
);
            return;
        }
    }
}