HTMLPurifier_DefinitionCache_Serializer::remove PHP Method

    public function remove($config)
    {
        $file = $this->generateFilePath($config);
        if (!file_exists($file)) {
            return false;
        }
        return unlink($file);
    }

 public function test()
 {
     // XXX SimpleTest does some really crazy stuff in the background
     // to do equality checks. Unfortunately, this makes some
     // versions of PHP segfault. So we need to define a better,
     // homebrew notion of equality and use that instead.  For now,
     // the identical asserts are commented out.
     $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 = HTMLPURIFIER_PREFIX . '/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);
 }