public function testGetProductsToPurchaseByReqGroups() { $result = $this->_model->getProductsToPurchaseByReqGroups($this->_product); $this->assertArrayHasKey(0, $result); $this->assertInternalType('array', $result[0]); $this->assertTrue(2 === count($result[0])); // fixture has 2 simple products foreach ($result[0] as $product) { $this->assertInstanceOf('Mage_Catalog_Model_Product', $product); } }