### Question:
SpringELResolver extends ELResolver implements FacesWrapper<CompositeELResolver> { @Override public boolean isReadOnly(ELContext context, Object base, Object property) { return getWrapped().isReadOnly(context, base, property); }  CompositeELResolver getWrapped(); @Override Object getValue(ELContext context, Object base, Object property); @Override Class<?> getType(ELContext context, Object base, Object property); @Override void setValue(ELContext context, Object base, Object property, Object value); @Override boolean isReadOnly(ELContext context, Object base, Object property); @Override Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base); @Override Class<?> getCommonPropertyType(ELContext context, Object base);  }### Answer:
@Test public void shouldDelegateIsReadOnly() throws Exception { this.el.isReadOnly(this.context, this.base, this.property); this.el.verify().isReadOnly(this.context, this.base, this.property); }