s := syscall.Statfs_t{}
	err = syscall.Statfs(path, &s)
	if err != nil {
		return Info{}, err
	}
	reservedBlocks := s.Bfree - s.Bavail
	info = Info{
		Total:  uint64(s.Bsize) * (s.Blocks - reservedBlocks),
		Free:   uint64(s.Bsize) * s.Bavail,
		Files:  s.Files,
		Ffree:  s.Ffree,
		FSType: getFSType(s.Fstypename[:]),
	}
	if info.Free > info.Total {

        Map<String, Object> responseDataMap = new HashMap<>();
        responseDataMap.put("b", "B1");

        indexUpdateCallback.mergeResponseData(dataMap, responseDataMap);

        assertEquals(2, dataMap.size());
        assertEquals("A0", dataMap.get("a"));
        assertEquals("B1", dataMap.get("b"));
    }

    /** Case 2: Key conflict (without .overwrite) → Overwrite with value from responseDataMap */
    @Test

        long initialAllocated = bufferManager.getTotalAllocated();

        // Allocate regions larger than pool buffer size to force new allocations
        RdmaMemoryRegion region1 = bufferManager.getSendRegion(131072); // 128KB > 64KB pool size
        RdmaMemoryRegion region2 = bufferManager.getSendRegion(131072); // Another large allocation

  }

  public void testSize() throws IOException {
    assertEquals(bytes.length, source.size());
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

    // test that we can get the size even if skip() isn't supported
    assertEquals(bytes.length, new TestByteSource(bytes, SKIP_THROWS).size());

    // test that we can get the size even if available() always returns zero

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapSizeTester<K, V> extends AbstractMapTester<K, V> {
  public void testSize() {
    assertEquals("size():", getNumElements(), getMap().size());
  }

  private final ImmutableMap<K, V> map;

  ImmutableMapValues(ImmutableMap<K, V> map) {
    this.map = map;
  }

  @Override
  public int size() {
    return map.size();
  }

  @Override
  public UnmodifiableIterator<V> iterator() {
    return new UnmodifiableIterator<V>() {
      final UnmodifiableIterator<Entry<K, V>> entryItr = map.entrySet().iterator();

    throw new UnsupportedOperationException();
  }

  @Override
  public int size() {
    if (graph.isDirected()) {
      return predecessorsOrEmpty(node).size()
          + successorsOrEmpty(node).size()
          - (edgeType == EdgeType.BOTH && predecessorsOrEmpty(node).contains(node) ? 1 : 0);
    } else {
      return graph.adjacentNodes(node).size();
    }
  }

  @Override
  public boolean contains(@Nullable Object obj) {

      return bytes.toRequestBody(finalContentType, 0, bytes.size)
    }

    @JvmStatic
    @JvmName("create")
    fun ByteString.toRequestBody(contentType: MediaType? = null): RequestBody =
      object : RequestBody() {
        override fun contentType() = contentType

        override fun contentLength() = size.toLong()

        override fun writeTo(sink: BufferedSink) {

			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z testRequest) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 2
	// write "Num"
	err = en.Append(0x82, 0xa3, 0x4e, 0x75, 0x6d)
	if err != nil {
		return
	}
	err = en.WriteInt(z.Num)
	if err != nil {
		err = msgp.WrapError(err, "Num")
		return
	}
	// write "String"

        map = new CaseInsensitiveMap<>(initialCapacity);
    }

    @Override
    public Iterator<String> iterator() {
        return map.keySet().iterator();
    }

    @Override
    public int size() {
        return map.size();
    }

    @Override
    public boolean isEmpty() {
        return map.isEmpty();
    }

    @Override
    public boolean contains(final Object o) {
        return map.containsKey(o);