public function testGetExtensions()
{
$admin = new PostAdmin('sonata.post.admin.post', 'NewsBundle\\Entity\\Post', 'SonataNewsBundle:PostAdmin');
$this->assertSame(array(), $admin->getExtensions());
$adminExtension1 = $this->getMock('Sonata\\AdminBundle\\Admin\\AdminExtensionInterface');
$adminExtension2 = $this->getMock('Sonata\\AdminBundle\\Admin\\AdminExtensionInterface');
$admin->addExtension($adminExtension1);
$admin->addExtension($adminExtension2);
$this->assertSame(array($adminExtension1, $adminExtension2), $admin->getExtensions());
}
