}

    @Test
    @DisplayName("Should handle null file ID gracefully")
    void testNullFileId() {
        // Given
        byte[] nullFileId = new byte[16]; // All zeros
        Configuration config = mock(Configuration.class);
        when(config.getNotifyBufferSize()).thenReturn(8192);

        // When

func (l lastDayTierStats) merge(m lastDayTierStats) (merged lastDayTierStats) {
	cl := l.clone()
	cm := m.clone()

	if cl.UpdatedAt.After(cm.UpdatedAt) {
		cm.forwardTo(cl.UpdatedAt)
		merged.UpdatedAt = cl.UpdatedAt
	} else {
		cl.forwardTo(cm.UpdatedAt)
		merged.UpdatedAt = cm.UpdatedAt
	}

	for i := range cl.Bins {
		merged.Bins[i] = cl.Bins[i].add(cm.Bins[i])
	}

	return merged
}

    }

    @Test
    @DisplayName("Test getCapacity with zero values")
    void testGetCapacityWithZeroValues() throws SMBProtocolDecodingException {
        // Prepare test data with zeros
        byte[] buffer = new byte[22];

        // All zeros
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = 0;
        }

        // Decode

// prometheus.Collector interface.
type MetricsGroup struct {
	// Path (relative to the Metrics v3 base endpoint) at which this group of
	// metrics is served. This value is converted into a metric name prefix
	// using `.metricPrefix()` and is added to each metric returned.
	CollectorPath collectorPath
	// List of all metric descriptors that could be returned by the loader.

   * @return the count of the element before the operation; possibly zero
   * @throws IllegalArgumentException if {@code count} is negative
   * @throws NullPointerException if {@code element} is null and this implementation does not permit
   *     null elements. Note that if {@code count} is zero, the implementor may optionally return
   *     zero instead.
   */
  @CanIgnoreReturnValue

   * it is returned directly. Otherwise, a new array of size {@code minLength + padding} is
   * returned, containing the values of {@code array}, and zeroes in the remaining places.
   *
   * @param array the source array
   * @param minLength the minimum length the returned array must guarantee
   * @param padding an extra amount to "grow" the array by if growth is necessary

   * it is returned directly. Otherwise, a new array of size {@code minLength + padding} is
   * returned, containing the values of {@code array}, and zeroes in the remaining places.
   *
   * @param array the source array
   * @param minLength the minimum length the returned array must guarantee
   * @param padding an extra amount to "grow" the array by if growth is necessary

            assertEquals(length, SMBUtil.readInt4(buffer, startIndex + 16));

            // Verify reserved bytes are zeros
            for (int i = 0; i < RESERVED_BYTES; i++) {
                assertEquals(0, buffer[startIndex + 20 + i]);
            }
        }

        @Test
        @DisplayName("Should encode zero values correctly")
        void testEncodeZeroValues() {
            // Given

        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.SMB_INFO_ALLOCATION);

        byte[] buffer = new byte[100];
        // Initialize buffer with zeros to avoid random data
        java.util.Arrays.fill(buffer, (byte) 0);

        // Set dataCount to 0 - but decode still runs
        setDataCount(response, 0);

            metadata.storeInLocalRepository(localRepo, localRepo);
            merged = true;
        } catch (Exception e) {
            throw new RepositoryException(e.getMessage(), e);
        }
    }

    @Override
    public boolean isMerged() {
        return merged;
    }

    @Override
    public String getGroupId() {
        return emptify(metadata.getGroupId());
    }