public function getPackageKeyFromComposerNameIgnoresCaseDifferences($composerName, $packageKey)
{
$packageStatesConfiguration = ['packages' => ['neos/flow' => ['packageKey' => 'Neos.Flow', 'composerName' => 'neos/flow'], 'imagine/imagine' => ['packageKey' => 'imagine.Imagine', 'composerName' => 'imagine/imagine']]];
$packageManager = $this->getAccessibleMock(PackageManager::class, ['resolvePackageDependencies']);
$packageManager->_set('packageStatesConfiguration', $packageStatesConfiguration);
$this->assertEquals($packageKey, $packageManager->_call('getPackageKeyFromComposerName', $composerName));
}