public function testGetCrossSellingSimilarProducts()
{
$productManager = $this->getMock('Sonata\\Component\\Product\\ProductManagerInterface');
$productManager->expects($this->once())->method('findInSameCollections')->will($this->returnValue(array()));
$finder = new ProductFinder($productManager);
$product = $this->getMock('Sonata\\Component\\Product\\ProductInterface');
$this->assertEquals(array(), $finder->getCrossSellingSimilarProducts($product));
}