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<?php |
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namespace RandomLib; |
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class GeneratorTest extends \PHPUnit_Framework_TestCase { |
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protected $generator = null; |
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protected $mixer = null; |
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protected $sources = array(); |
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public static function provideGenerate() { |
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return array( |
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array(0, ''), |
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array(1, chr(0)), |
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array(2, chr(1) . chr(1)), |
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array(3, chr(2) . chr(0) . chr(2)), |
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array(4, chr(3) . chr(3) . chr(3) . chr(3)), |
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); |
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} |
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public static function provideGenerateInt() { |
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return array( |
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array(1, 1, 1), |
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array(0, 1, 0), |
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array(0, 255, 0), |
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array(400, 655, 400), |
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array(0, 65535, 257), |
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array(65535, 131070, 65792), |
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array(0, 16777215, (2<<16) + 2), |
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array(-10, 0, -10), |
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array(-655, -400, -655), |
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array(-131070, -65535, -130813), |
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); |
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} |
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public static function provideGenerateIntRangeTest() { |
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return array( |
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array(0, 0), |
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array(0, 1), |
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array(1, 10000), |
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array(100000, \PHP_INT_MAX), |
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); |
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} |
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public static function provideGenerateStringTest() { |
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return array( |
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array(0, 'ab', ''), |
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array(1, 'ab', 'a'), |
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array(1, 'a', ''), |
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array(2, 'ab', 'bb'), |
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array(3, 'abc', 'cac'), |
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array(8, '0123456789abcdef', '77777777'), |
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array(16, '0123456789abcdef', 'ffffffffffffffff'), |
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array(16, '', 'DDDDDDDDDDDDDDDD'), |
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); |
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} |
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public function setUp() { |
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$source1 = $this->getMock('RandomLib\Source'); |
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$source1->expects($this->any()) |
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->method('generate') |
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->will($this->returnCallback(function ($size) { |
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$r = ''; |
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for ($i = 0; $i < $size; $i++) { |
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$r .= chr($i); |
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} |
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return $r; |
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} |
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)); |
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$source2 = $this->getMock('RandomLib\Source'); |
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$source2->expects($this->any()) |
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->method('generate') |
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->will($this->returnCallback(function ($size) { |
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$r = ''; |
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for ($i = $size - 1; $i >= 0; $i--) { |
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$r .= chr($i); |
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} |
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return $r; |
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} |
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)); |
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$this->mixer = $this->getMock('RandomLib\Mixer'); |
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$this->mixer->expects($this->any()) |
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->method('mix') |
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->will($this->returnCallback(function(array $sources) { |
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if (empty($sources)) return ''; |
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$start = array_pop($sources); |
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return array_reduce( |
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$sources, |
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function($el1, $el2) { |
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return $el1 ^ $el2; |
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}, |
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$start |
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); |
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})); |
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$this->sources = array($source1, $source2); |
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$this->generator = new Generator($this->sources, $this->mixer); |
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} |
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public function testConstruct() { |
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$this->assertTrue($this->generator instanceof Generator); |
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} |
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public function testGetMixer() { |
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$this->assertSame($this->mixer, $this->generator->getMixer()); |
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} |
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public function testGetSources() { |
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$this->assertSame($this->sources, $this->generator->getSources()); |
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} |
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/** |
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* @dataProvider provideGenerate |
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*/ |
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public function testGenerate($size, $expect) { |
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$this->assertEquals($expect, $this->generator->generate($size)); |
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} |
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/** |
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* @dataProvider provideGenerateInt |
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*/ |
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public function testGenerateInt($min, $max, $expect) { |
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$this->assertEquals($expect, $this->generator->generateInt($min, $max)); |
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} |
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/** |
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* @dataProvider provideGenerateIntRangeTest |
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*/ |
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public function testGenerateIntRange($min, $max) { |
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$n = $this->generator->generateInt($min, $max); |
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$this->assertTrue($min <= $n); |
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$this->assertTrue($max >= $n); |
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} |
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/** |
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* @expectedException RangeException |
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*/ |
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public function testGenerateIntFail() { |
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$n = $this->generator->generateInt(-1, PHP_INT_MAX); |
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} |
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/** |
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*/ |
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public function testGenerateIntLargeTest() { |
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$bits = 30; |
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$expected = 50529027; |
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if (PHP_INT_MAX > 4000000000) { |
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$bits = 55; |
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$expected = 1693273676973062; |
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} |
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$n = $this->generator->generateInt(0, (int) pow(2, $bits)); |
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$this->assertEquals($expected, $n); |
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} |
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/** |
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* @dataProvider provideGenerateStringTest |
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*/ |
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public function testGenerateString($length, $chars, $expected) { |
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$n = $this->generator->generateString($length, $chars); |
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$this->assertEquals($expected, $n); |
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} |
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/** |
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* This test checks for issue #22: |
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* @see https://github.com/ircmaxell/RandomLib/issues/22 |
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*/ |
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public function testGenerateLargeRange() { |
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if (PHP_INT_MAX < pow(2, 32)) { |
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$this->markTestSkipped("Only test on 64 bit platforms"); |
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} |
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$this->assertEquals(506381209866536711, $this->generator->generateInt(0, PHP_INT_MAX)); |
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} |
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} |
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ircmaxell /
RandomLib
