<?php

require_once 'HTMLPurifier/DefinitionCacheHarness.php';
require_once 'HTMLPurifier/DefinitionCache/Serializer.php';

class HTMLPurifier_DefinitionCache_SerializerTest extends HTMLPurifier_DefinitionCacheHarness
{
    
    function test() {
        
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        
        $config = $this->generateConfigMock('serial');
        $config->setReturnValue('get', 2, array('Test', 'DefinitionRev'));
        $config->version = '1.0.0';
        
        $config_md5   = '1.0.0-serial-2';
        
        $file = realpath(
            $rel_file = dirname(__FILE__) .
            '/../../../library/HTMLPurifier/DefinitionCache/Serializer/Test/' .
            $config_md5 . '.ser'
        );
        if($file && file_exists($file)) unlink($file); // prevent previous failures from causing problems
        
        $this->assertIdentical($config_md5, $cache->generateKey($config));
        
        $def_original = $this->generateDefinition();
        
        $cache->add($def_original, $config);
        $this->assertFileExist($rel_file);
        
        $file_generated = $cache->generateFilePath($config);
        $this->assertIdentical(realpath($rel_file), realpath($file_generated));
        
        $def_1 = $cache->get($config);
        $this->assertIdentical($def_original, $def_1);
        
        $def_original->info_random = 'changed';
        
        $cache->set($def_original, $config);
        $def_2 = $cache->get($config);
        
        $this->assertIdentical($def_original, $def_2);
        $this->assertNotEqual ($def_original, $def_1);
        
        $def_original->info_random = 'did it change?';
        
        $this->assertFalse($cache->add($def_original, $config));
        $def_3 = $cache->get($config);
        
        $this->assertNotEqual ($def_original, $def_3); // did not change!
        $this->assertIdentical($def_3, $def_2);
        
        $cache->replace($def_original, $config);
        $def_4 = $cache->get($config);
        $this->assertIdentical($def_original, $def_4);
        
        $cache->remove($config);
        $this->assertFileNotExist($file);
        
        $this->assertFalse($cache->replace($def_original, $config));
        $def_5 = $cache->get($config);
        $this->assertFalse($def_5);
        
    }
    
    function test_errors() {
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        $def = new HTMLPurifier_Definition();
        $def->setup = true;
        $def->type = 'NotTest';
        $config = $this->generateConfigMock('testfoo');
        
        $this->expectError('Cannot use definition of type NotTest in cache for Test');
        $cache->add($def, $config);
        
        $this->expectError('Cannot use definition of type NotTest in cache for Test');
        $cache->set($def, $config);
        
        $this->expectError('Cannot use definition of type NotTest in cache for Test');
        $cache->replace($def, $config);
    }
    
    function test_flush() {
        
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        
        $config1 = $this->generateConfigMock('test1');
        $config2 = $this->generateConfigMock('test2');
        $config3 = $this->generateConfigMock('test3');
        
        $def1 = $this->generateDefinition(array('info_candles' => 1));
        $def2 = $this->generateDefinition(array('info_candles' => 2));
        $def3 = $this->generateDefinition(array('info_candles' => 3));
        
        $cache->add($def1, $config1);
        $cache->add($def2, $config2);
        $cache->add($def3, $config3);
        
        $this->assertEqual($def1, $cache->get($config1));
        $this->assertEqual($def2, $cache->get($config2));
        $this->assertEqual($def3, $cache->get($config3));
        
        $cache->flush($config1); // only essential directive is %Cache.SerializerPath
        
        $this->assertFalse($cache->get($config1));
        $this->assertFalse($cache->get($config2));
        $this->assertFalse($cache->get($config3));
        
    }
    
    function testCleanup() {
        
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        
        // in order of age, oldest first
        // note that configurations are all identical, but version/revision
        // are different
        
        $config1 = $this->generateConfigMock();
        $config1->version = '0.9.0';
        $config1->setReturnValue('get', 574, array('Test', 'DefinitionRev'));
        $def1 = $this->generateDefinition(array('info' => 1));
        
        $config2 = $this->generateConfigMock();
        $config2->version = '1.0.0beta';
        $config2->setReturnValue('get', 1, array('Test', 'DefinitionRev'));
        $def2 = $this->generateDefinition(array('info' => 3));
        
        $cache->set($def1, $config1);
        $cache->cleanup($config1);
        $this->assertEqual($def1, $cache->get($config1)); // no change
        
        $cache->cleanup($config2);
        $this->assertFalse($cache->get($config1));
        $this->assertFalse($cache->get($config2));
        
    }
    
    function testCleanupOnlySameID() {
        
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        
        $config1 = $this->generateConfigMock('serial1');
        $config1->version = '1.0.0';
        $config1->setReturnValue('get', 1, array('Test', 'DefinitionRev'));
        $def1 = $this->generateDefinition(array('info' => 1));
        
        $config2 = $this->generateConfigMock('serial2');
        $config2->version = '1.0.0';
        $config2->setReturnValue('get', 34, array('Test', 'DefinitionRev'));
        $def2 = $this->generateDefinition(array('info' => 3));
        
        $cache->set($def1, $config1);
        $cache->cleanup($config1);
        $this->assertEqual($def1, $cache->get($config1)); // no change
        
        $cache->set($def2, $config2);
        $cache->cleanup($config2);
        $this->assertEqual($def1, $cache->get($config1));
        $this->assertEqual($def2, $cache->get($config2));
        
        $cache->flush($config1);
    }
    
    /**
     * Asserts that a file exists, ignoring the stat cache
     */
    function assertFileExist($file) {
        clearstatcache();
        $this->assertTrue(file_exists($file), 'Expected ' . $file . ' exists');
    }
    
    /**
     * Asserts that a file does not exist, ignoring the stat cache
     */
    function assertFileNotExist($file) {
        $this->assertFalse(file_exists($file), 'Expected ' . $file . ' does not exist');
    }
    
    function testAlternatePath() {
        
        $cache = new HTMLPurifier_DefinitionCache_Serializer('Test');
        $config = $this->generateConfigMock('serial');
        $config->version = '1.0.0';
        $config->setReturnValue('get', 1, array('Test', 'DefinitionRev'));
        $dir = dirname(__FILE__) . '/SerializerTest';
        $config->setReturnValue('get', $dir, array('Cache', 'SerializerPath'));
        
        $def_original = $this->generateDefinition();
        $cache->add($def_original, $config);
        $this->assertFileExist($dir . '/Test/1.0.0-serial-1.ser');
        
        unlink($dir . '/Test/1.0.0-serial-1.ser');
        rmdir( $dir . '/Test');
        
    }
    
}