class MongoDbSessionHandlerTest

class MongoDbSessionHandlerTest extends \PHPUnit_Framework_TestCase {

  /**
   * @var \PHPUnit_Framework_MockObject_MockObject
   */
  private $mongo;
  private $storage;
  public $options;
  protected function setUp() {
    if (!extension_loaded('mongo')) {
      $this
        ->markTestSkipped('MongoDbSessionHandler requires the PHP "mongo" extension.');
    }
    $mongoClass = version_compare(phpversion('mongo'), '1.3.0', '<') ? 'Mongo' : 'MongoClient';
    $this->mongo = $this
      ->getMockBuilder($mongoClass)
      ->disableOriginalConstructor()
      ->getMock();
    $this->options = array(
      'id_field' => '_id',
      'data_field' => 'data',
      'time_field' => 'time',
      'database' => 'sf2-test',
      'collection' => 'session-test',
    );
    $this->storage = new MongoDbSessionHandler($this->mongo, $this->options);
  }

  /**
   * @expectedException InvalidArgumentException
   */
  public function testConstructorShouldThrowExceptionForInvalidMongo() {
    new MongoDbSessionHandler(new \stdClass(), $this->options);
  }

  /**
   * @expectedException InvalidArgumentException
   */
  public function testConstructorShouldThrowExceptionForMissingOptions() {
    new MongoDbSessionHandler($this->mongo, array());
  }
  public function testOpenMethodAlwaysReturnTrue() {
    $this
      ->assertTrue($this->storage
      ->open('test', 'test'), 'The "open" method should always return true');
  }
  public function testCloseMethodAlwaysReturnTrue() {
    $this
      ->assertTrue($this->storage
      ->close(), 'The "close" method should always return true');
  }
  public function testWrite() {
    $collection = $this
      ->getMockBuilder('MongoCollection')
      ->disableOriginalConstructor()
      ->getMock();
    $this->mongo
      ->expects($this
      ->once())
      ->method('selectCollection')
      ->with($this->options['database'], $this->options['collection'])
      ->will($this
      ->returnValue($collection));
    $that = $this;
    $data = array();
    $collection
      ->expects($this
      ->once())
      ->method('update')
      ->will($this
      ->returnCallback(function ($criteria, $updateData, $options) use ($that, &$data) {
      $that
        ->assertEquals(array(
        $that->options['id_field'] => 'foo',
      ), $criteria);
      $that
        ->assertEquals(array(
        'upsert' => true,
        'multiple' => false,
      ), $options);
      $data = $updateData['$set'];
    }));
    $this
      ->assertTrue($this->storage
      ->write('foo', 'bar'));
    $this
      ->assertEquals('bar', $data[$this->options['data_field']]->bin);
    $that
      ->assertInstanceOf('MongoDate', $data[$this->options['time_field']]);
  }
  public function testReplaceSessionData() {
    $collection = $this
      ->getMockBuilder('MongoCollection')
      ->disableOriginalConstructor()
      ->getMock();
    $this->mongo
      ->expects($this
      ->once())
      ->method('selectCollection')
      ->with($this->options['database'], $this->options['collection'])
      ->will($this
      ->returnValue($collection));
    $data = array();
    $collection
      ->expects($this
      ->exactly(2))
      ->method('update')
      ->will($this
      ->returnCallback(function ($criteria, $updateData, $options) use (&$data) {
      $data = $updateData;
    }));
    $this->storage
      ->write('foo', 'bar');
    $this->storage
      ->write('foo', 'foobar');
    $this
      ->assertEquals('foobar', $data['$set'][$this->options['data_field']]->bin);
  }
  public function testDestroy() {
    $collection = $this
      ->getMockBuilder('MongoCollection')
      ->disableOriginalConstructor()
      ->getMock();
    $this->mongo
      ->expects($this
      ->once())
      ->method('selectCollection')
      ->with($this->options['database'], $this->options['collection'])
      ->will($this
      ->returnValue($collection));
    $collection
      ->expects($this
      ->once())
      ->method('remove')
      ->with(array(
      $this->options['id_field'] => 'foo',
    ));
    $this
      ->assertTrue($this->storage
      ->destroy('foo'));
  }
  public function testGc() {
    $collection = $this
      ->getMockBuilder('MongoCollection')
      ->disableOriginalConstructor()
      ->getMock();
    $this->mongo
      ->expects($this
      ->once())
      ->method('selectCollection')
      ->with($this->options['database'], $this->options['collection'])
      ->will($this
      ->returnValue($collection));
    $that = $this;
    $collection
      ->expects($this
      ->once())
      ->method('remove')
      ->will($this
      ->returnCallback(function ($criteria) use ($that) {
      $that
        ->assertInstanceOf('MongoDate', $criteria[$that->options['time_field']]['$lt']);
      $that
        ->assertGreaterThanOrEqual(time() - -1, $criteria[$that->options['time_field']]['$lt']->sec);
    }));
    $this
      ->assertTrue($this->storage
      ->gc(-1));
  }

}