### Question:
DMNEditDRDToolboxAction implements ToolboxAction<AbstractCanvasHandler> { @Override public Glyph getGlyph(final AbstractCanvasHandler canvasHandler, final String uuid) { return ImageDataUriGlyph.create(StunnerCommonImageResources.INSTANCE.drd().getSafeUri()); } @Inject  DMNEditDRDToolboxAction(final DRDContextMenu drdContextMenu); @Override Glyph getGlyph(final AbstractCanvasHandler canvasHandler, final String uuid); @Override String getTitle(final AbstractCanvasHandler canvasHandler, final String uuid); @Override ToolboxAction<AbstractCanvasHandler> onMouseClick(final AbstractCanvasHandler canvasHandler, final String uuid, final MouseClickEvent event);  }### Answer:
@Test public void testGetGlyph() { assertThat(dmnEditDRDToolboxAction.getGlyph(canvasHandler, UUID)).isNotNull(); assertThat(dmnEditDRDToolboxAction.getGlyph(canvasHandler, UUID)).isInstanceOf(ImageDataUriGlyph.class); }