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<?php
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require_once APPPATH . '/libraries/variable_key_generators/Checksum_Variable_Key_Generator.php';
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/**
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* Test class for Parity_Variable_Key_Generator.
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* Generated by PHPUnit on 2013-06-05 at 14:39:59.
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*/
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class Checksum_Variable_Key_GeneratorTest extends PHPUnit_Framework_TestCase {
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/**
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* @var Parity_Variable_Key_Generator
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*/
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protected $object;
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/**
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* Sets up the fixture, for example, opens a network connection.
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* This method is called before a test is executed.
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*/
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protected function setUp() {
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$this->object = new Checksum_Variable_Key_Generator;
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}
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/**
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* Tears down the fixture, for example, closes a network connection.
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* This method is called after a test is executed.
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*/
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protected function tearDown() {
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}
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/**
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* Test uniqe keys for member IDs
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* @covers Parity_Variable_Key_Generator::generate
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*/
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public function testGenerate() {
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$variable_symbols_bottom = array();
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for ($i = 0; $i < 29999; $i++)
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{
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$vs = $this->object->generate(strval($i));
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$variable_symbols_bottom[$vs] = true;
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}
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$this->assertEquals(count($variable_symbols_bottom), 29999);
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$variable_symbols_top = array();
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for ($i = 990000; $i < 999999; $i++)
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{
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$vs = $this->object->generate(strval($i));
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$variable_symbols_top[$vs] = true;
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}
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$this->assertEquals(count($variable_symbols_top), 9999);
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$variable_symbols_middle = array();
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$seed = rand(30000, 269999);
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for ($i = $seed; $i < $seed + 9999; $i++)
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{
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$vs = $this->object->generate(strval($i));
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$variable_symbols_middle[$vs] = true;
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}
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$this->assertEquals(count($variable_symbols_middle), 9999);
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$vs = array_merge($variable_symbols_bottom, $variable_symbols_middle, $variable_symbols_top);
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$this->assertEquals(count($vs), 49997);
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}
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/**
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* Tests one error check
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* @covers Parity_Variable_Key_Generator::errorCheck
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*/
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public function testOneErrorCheck() {
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$vs = $this->object->generate(rand(1, 999999));
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// one error in variable symbol
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for ($i = 0; $i < 10; $i++) // move error position
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{
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for ($j = 0; $j < 10; $j++) // change value
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{
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$bad_vs = $vs;
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$bad_vs[$i] = strval($j);
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// skip no error test
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if ($bad_vs == $vs)
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{
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continue;
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}
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$result = $this->object->errorCheck($bad_vs);
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$this->assertFalse($result);
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}
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}
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}
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/**
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* Tests two error check
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* @covers Parity_Variable_Key_Generator::errorCheck
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*/
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public function testTwoErrorsCheck() {
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$vs = $this->object->generate(rand(1, 999999));
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// two errors in variable symbol
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for ($i = 0; $i < 10; $i++) // move first error position
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{
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for ($j = 0; $j < 10; $j++) // change first value
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{
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for ($k = $i+1; $k < 10; $k++) // move second error position
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{
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for ($l = 0; $l < 10; $l++) // change second value
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{
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$bad_vs = $vs;
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$bad_vs[$i] = strval($j);
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$bad_vs[$k] = strval($l);
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// skip no error test
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if ($bad_vs == $vs)
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{
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continue;
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}
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$result = $this->object->errorCheck($bad_vs);
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$this->assertFalse($result);
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}
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}
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}
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}
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}
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/**
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* Tests one error correction
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* @covers Parity_Variable_Key_Generator::errorCorrection
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*/
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public function testOneErrorCorrection() {
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$vs = $this->object->generate(rand(1, 999999));
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// one error in variable symbol
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for ($i = 0; $i < 10; $i++) // move error position
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{
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for ($j = 0; $j < 10; $j++) // change value
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{
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$bad_vs = $vs;
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$bad_vs[$i] = strval($j);
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// skip no error test
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if ($bad_vs == $vs)
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{
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continue;
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}
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$result = $this->object->errorCorrection($bad_vs);
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$this->assertTrue($result['status']);
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$this->assertEquals($result['corrected_variable_key'], $vs);
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}
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}
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}
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}
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