assertEquals(testByte, buffer[i], "Byte at position " + i + " was modified");
            }
        }

        @Test
        @DisplayName("Should encode at buffer boundary")
        void testEncodeAtBufferBoundary() {
            // Given
            SrvCopychunk chunk = new SrvCopychunk(111, 222, 333);
            SrvCopychunkCopy copy = new SrvCopychunkCopy(sourceKey, chunk);