### Question:
DMNDocumentationDRDsFactory { void clearSelections(final ExpressionContainerGrid grid) { grid.getBaseExpressionGrid().ifPresent(expressionGrid -> { expressionGrid.getModel().clearSelections(); expressionGrid.draw(); }); } @Inject  DMNDocumentationDRDsFactory(final SessionManager sessionManager,
                                       final BoxedExpressionHelper expressionHelper); List<DMNDocumentationDRD> create(final Diagram diagram);  }### Answer:
@Test public void testClearSelections() { factory.clearSelections(expressionContainerGrid); verify(expressionGrid.getModel()).clearSelections(); verify(expressionGrid).draw(); }