### Question:
ELContextDecorator extends ELContext { @Override public void setLocale(Locale locale) { this.elContext.setLocale(locale); } ELContextDecorator(ELContext elContext); @Override void setPropertyResolved(boolean resolved); @Override boolean isPropertyResolved(); @Override @SuppressWarnings("rawtypes") void putContext(Class key, Object contextObject); @Override @SuppressWarnings("rawtypes") Object getContext(Class key); @Override Locale getLocale(); @Override void setLocale(Locale locale); @Override ELResolver getELResolver(); @Override FunctionMapper getFunctionMapper(); @Override VariableMapper getVariableMapper();  }### Answer:
@Test public void shouldDecorateSetLocale() throws Exception { Locale locale = Locale.CANADA; this.decorator.setLocale(locale); verify(this.decorated).setLocale(locale); }