/**
  * @param string $gridName
  * @param array  $existingParameters
  * @param array  $additionalParameters
  * @param array  $expectedParameters
  *
  * @dataProvider extendConfigurationDataProvider
  */
 public function testExtendConfiguration($gridName, array $existingParameters, array $additionalParameters, array $expectedParameters)
 {
     $this->configProvider->expects($this->once())->method('getConfiguration')->will($this->returnValue(DatagridConfiguration::create($additionalParameters)));
     $this->assertEquals(DatagridConfiguration::create($expectedParameters)->toArray(), $this->helper->extendConfiguration(DatagridConfiguration::create($existingParameters), $gridName)->toArray());
 }