### Question:
DMNDiagramsSessionState { public Diagram getDRGDiagram() { return getDRGDiagramTuple().getStunnerDiagram(); } @Inject  DMNDiagramsSessionState(final DMNDiagramUtils dmnDiagramUtils); Diagram getDRGDiagram();  }### Answer:
@Test public void testGetDRGDiagram() { assertEquals(stunnerDiagram1, sessionState.getDRGDiagram()); }