@BeforeEach
    public void setup() {
        dirConfigSource = new DirConfigSource(tmpDir);
        componentGraph = new ComponentGraph(0);
        osgi = new TestOsgi(BundleTestUtil.testBundles());
    }
@author Tony Vaagenes
@author gjoranv
@author ollivir
container-core/src/test/java/com/yahoo/container/di/ContainerTestBase.java