public function testClassMetadataInstanceSerialization()
{
$cm = new ClassMetadata('Documents\\CmsUser');
// Test initial state
$this->assertTrue(count($cm->getReflectionProperties()) == 0);
$this->assertTrue($cm->reflClass instanceof \ReflectionClass);
$this->assertEquals('Documents\\CmsUser', $cm->name);
$this->assertEquals('Documents\\CmsUser', $cm->rootDocumentName);
$this->assertEquals(array(), $cm->subClasses);
$this->assertEquals(array(), $cm->parentClasses);
$this->assertEquals(ClassMetadata::INHERITANCE_TYPE_NONE, $cm->inheritanceType);
// Customize state
$cm->setInheritanceType(ClassMetadata::INHERITANCE_TYPE_SINGLE_COLLECTION);
$cm->setSubclasses(array("One", "Two", "Three"));
$cm->setParentClasses(array("UserParent"));
$cm->setCustomRepositoryClass("UserRepository");
$cm->setDiscriminatorField('disc');
$cm->mapOneEmbedded(array('fieldName' => 'phonenumbers', 'targetDocument' => 'Bar'));
$cm->setFile('customFileProperty');
$cm->setDistance('customDistanceProperty');
$cm->setSlaveOkay(true);
$cm->setShardKey(array('_id' => '1'));
$cm->setCollectionCapped(true);
$cm->setCollectionMax(1000);
$cm->setCollectionSize(500);
$this->assertTrue(is_array($cm->getFieldMapping('phonenumbers')));
$this->assertEquals(1, count($cm->fieldMappings));
$this->assertEquals(1, count($cm->associationMappings));
$serialized = serialize($cm);
$cm = unserialize($serialized);
// Check state
$this->assertTrue(count($cm->getReflectionProperties()) > 0);
$this->assertEquals('Documents', $cm->namespace);
$this->assertTrue($cm->reflClass instanceof \ReflectionClass);
$this->assertEquals('Documents\\CmsUser', $cm->name);
$this->assertEquals('UserParent', $cm->rootDocumentName);
$this->assertEquals(array('Documents\\One', 'Documents\\Two', 'Documents\\Three'), $cm->subClasses);
$this->assertEquals(array('UserParent'), $cm->parentClasses);
$this->assertEquals('Documents\\UserRepository', $cm->customRepositoryClassName);
$this->assertEquals('disc', $cm->discriminatorField);
$this->assertTrue(is_array($cm->getFieldMapping('phonenumbers')));
$this->assertEquals(1, count($cm->fieldMappings));
$this->assertEquals(1, count($cm->associationMappings));
$this->assertEquals('customFileProperty', $cm->file);
$this->assertEquals('customDistanceProperty', $cm->distance);
$this->assertTrue($cm->slaveOkay);
$this->assertEquals(array('keys' => array('_id' => 1), 'options' => array()), $cm->getShardKey());
$mapping = $cm->getFieldMapping('phonenumbers');
$this->assertEquals('Documents\\Bar', $mapping['targetDocument']);
$this->assertTrue($cm->getCollectionCapped());
$this->assertEquals(1000, $cm->getCollectionMax());
$this->assertEquals(500, $cm->getCollectionSize());
}