[BUGFIX] Failures in em unit tests due to phpunit update

Young phpunit versions seem to handle clones a bit differently,
resulting in test failures in extension manager tests. The tests
are adapted a bit to fix this.

Change-Id: If70561743f68a62167e41ee4c23ae96b56f83ab9
Resolves: #50478
Releases: 6.2, 6.1, 6.0
Reviewed-on: https://review.typo3.org/22604
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring

typo3/sysext/extensionmanager/Tests/Unit/Service/ExtensionManagementServiceTest.php

@@ -99,7 +99,7 @@ class ExtensionManagementServiceTest extends \TYPO3\CMS\Extbase\Tests\Unit\BaseT
 		);
 		$downloadQueueMock = $this->getAccessibleMock('TYPO3\\CMS\\Extensionmanager\\Domain\\Model\\DownloadQueue', array('removeExtensionFromQueue', 'addExtensionToInstallQueue'));
 		$downloadUtilityMock = $this->getAccessibleMock('TYPO3\\CMS\\Extensionmanager\\Utility\\DownloadUtility', array('download'));
-		$downloadUtilityMock->expects($this->once())->method('download')->with(clone $extensionModelMock);
+		$downloadUtilityMock->expects($this->once())->method('download')->with($extensionModelMock);
 		$managementMock->_set('downloadUtility', $downloadUtilityMock);
 		$managementMock->_set('downloadQueue', $downloadQueueMock);
 		$managementMock->_call('downloadDependencies', $downloadQueue);
@@ -121,7 +121,7 @@ class ExtensionManagementServiceTest extends \TYPO3\CMS\Extbase\Tests\Unit\BaseT
 		);
 		$downloadQueueMock = $this->getAccessibleMock('TYPO3\\CMS\\Extensionmanager\\Domain\\Model\\DownloadQueue', array('removeExtensionFromQueue', 'addExtensionToInstallQueue'));
 		$downloadUtilityMock = $this->getAccessibleMock('TYPO3\\CMS\\Extensionmanager\\Utility\\DownloadUtility', array('download'));
-		$downloadQueueMock->expects($this->once())->method('removeExtensionFromQueue')->with(clone $extensionModelMock);
+		$downloadQueueMock->expects($this->once())->method('removeExtensionFromQueue')->with($extensionModelMock);
 		$managementMock->_set('downloadUtility', $downloadUtilityMock);
 		$managementMock->_set('downloadQueue', $downloadQueueMock);
 		$managementMock->_call('downloadDependencies', $downloadQueue);