public function testSetMainTable()
 {
     $setMainTableMethod = new \ReflectionMethod($this->_model, '_setMainTable');
     $setMainTableMethod->setAccessible(true);
     $tableName = $this->_model->getTable('store_website');
     $idFieldName = 'website_id';
     $setMainTableMethod->invoke($this->_model, $tableName);
     $this->assertEquals($tableName, $this->_model->getMainTable());
     $setMainTableMethod->invoke($this->_model, $tableName, $idFieldName);
     $this->assertEquals($tableName, $this->_model->getMainTable());
     $this->assertEquals($idFieldName, $this->_model->getIdFieldName());
 }
 /**
  * @dataProvider getTableDataProvider
  * @param $tableName
  * @param $expectedResult
  */
 public function testGetMainTable($tableName, $expectedResult)
 {
     $mainTableProperty = new \ReflectionProperty('Magento\\Framework\\Model\\ResourceModel\\Db\\AbstractDb', '_mainTable');
     $mainTableProperty->setAccessible(true);
     $mainTableProperty->setValue($this->_model, $tableName);
     $this->_resourcesMock->expects($this->once())->method('getTableName')->with($expectedResult)->will($this->returnValue($expectedResult));
     $this->assertEquals($expectedResult, $this->_model->getMainTable());
 }