### Question:
LienzoGlyphRenderers implements LienzoGlyphRenderer<Glyph> { @PreDestroy public void destroy() { renderers.clear(); rendererInstances.destroyAll(); } protected  LienzoGlyphRenderers(); @Inject  LienzoGlyphRenderers(final @Any ManagedInstance<LienzoGlyphRenderer> rendererInstances); @PostConstruct void init(); @Override @SuppressWarnings("unchecked") Group render(final Glyph glyph,
                        final double width,
                        final double height); @Override Class<Glyph> getGlyphType(); @PreDestroy void destroy();  }### Answer:
@Test public void testDestroy() { tested.destroy(); verify(rendererInstances, times(1)).destroyAll(); }