### Question:
JSONArrayRequestDecorator extends RequestDecorator<T> { @NonNull public String getElementsKey() { return elementsKey; } JSONArrayRequestDecorator(@NonNull final Request<T> request, @NonNull final String elementsKey); @NonNull String getElementsKey(); @Override String toString();  }### Answer:
@Test public void testGetElementsKey() { assertEquals(ELEMENTS_KEY, decorator.getElementsKey()); }