assertEquals(16, result);
            verify(request, times(1)).encode(buffer, 0);
        }

        @Test
        @DisplayName("size() method should return correct size")
        void testSizeMethod() {
            CreateContextRequest request = mock(CreateContextRequest.class);
            when(request.size()).thenReturn(64);

            int size = request.size();
            assertEquals(64, size);