[libcalamares] Add convenience backend() to KPMManager

src/libcalamares/partition/KPMManager.cpp

@@ -115,6 +115,12 @@ KPMManager::operator bool() const
     return s_kpm_loaded;
 }
 
+CoreBackend*
+KPMManager::backend() const
+{
+    return s_kpm_loaded ? CoreBackendManager::self()->backend() : nullptr;
+}
+
 
 }  // namespace Partition
 }  // namespace CalamaresUtils

src/libcalamares/partition/KPMManager.h

@@ -50,6 +50,10 @@ public:
 
     /// @brief Is KPMCore loaded correctly?
     operator bool() const;
+
+    /// @brief Gets the KPMCore backend (e.g. CoreBackendManager::self()->backend() )
+    CoreBackend* backend() const;
+
 private:
     std::shared_ptr< InternalManager > m_d;
 };

src/modules/partition/tests/PartitionJobTests.cpp

@@ -31,7 +31,6 @@
 
 // CalaPM
 #include <backend/corebackend.h>
-#include <backend/corebackendmanager.h>
 #include <fs/filesystemfactory.h>
 
 // Qt
@@ -198,8 +197,7 @@ void
 PartitionJobTests::refreshDevice()
 {
     QString devicePath = qgetenv( "CALAMARES_TEST_DISK" );
-    CoreBackend* backend = CoreBackendManager::self()->backend();
-    m_device.reset( backend->scanDevice( devicePath ) );
+    m_device.reset( kpmcore->backend()->scanDevice( devicePath ) );
     QVERIFY( !m_device.isNull() );
 }