### Question:
RuleAnnotationClauseColumn extends DMNSimpleGridColumn<DecisionTableGrid, String> implements HasDOMElementResources { @Override public void setWidth(final double width) { superSetWidth(width); updateWidthOfPeers(); } RuleAnnotationClauseColumn(final Supplier<List<HeaderMetaData>> headerMetaDataSupplier,
                                      final TextAreaSingletonDOMElementFactory factory,
                                      final double width,
                                      final DecisionTableGrid gridWidget); @Override void edit(final GridCell<String> cell,
                     final GridBodyCellRenderContext context,
                     final Consumer<GridCellValue<String>> callback); @Override void destroyResources(); @Override void setWidth(final double width);  }### Answer:
@Test public void testSetWidth() { doNothing().when(column).superSetWidth(width); doNothing().when(column).updateWidthOfPeers(); column.setWidth(width); verify(column).superSetWidth(width); verify(column).updateWidthOfPeers(); }