public function testGetRelationInfo() { $info = $this->_model->getRelationInfo(); $this->assertInstanceOf('Magento\\Framework\\Object', $info); $this->assertEquals('catalog_product_super_link', $info->getData('table')); $this->assertEquals('parent_id', $info->getData('parent_field_name')); $this->assertEquals('product_id', $info->getData('child_field_name')); }