// and If-Unmodified-Since headers set are validated.
// If-Modified-Since - Return the object only if it has been modified since the specified time, else return a 304 (not modified).
// If-Unmodified-Since - Return the object only if it has not been modified since the specified time, else return a 412 (precondition failed).
func (s *TestSuiteCommon) TestHeadOnObjectLastModified(c *check) {
	// generate a random bucket name.

                DcerpcException result = bind.getResult();

                if (validCodes[i] == 0) {
                    assertNull(result, "Should return null for result code 0");
                } else {
                    assertNotNull(result, "Should return exception for result code " + validCodes[i]);
                    assertEquals(expectedMessages[i], result.getMessage(),

        case CrudMode.EDIT:
            final String docId;
            if (form.doc != null) {
                docId = (String) form.doc.get(fessConfig.getIndexFieldDocId());
            } else {
                docId = null;
            }
            if (StringUtil.isNotBlank(docId)) {
                return searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {

            if (pattern != null) {
                if (!pattern.matcher(failureUrl.getErrorName()).matches()) {
                    urlList.add(failureUrl.getUrl());
                }
            } else {
                urlList.add(failureUrl.getUrl());
            }
        }
        return urlList;
    }

    /**

          assertTrue(overlaps);
          continue subsets;
        }
      }

      if (anyOverlaps) {
        assertThrows(IllegalArgumentException.class, () -> ImmutableRangeSet.copyOf(subset));
      } else {
        RangeSet<Integer> copy = ImmutableRangeSet.copyOf(subset);
        assertEquals(mutable, copy);
      }

      ImmutableRangeSet<Integer> built = builder.build();
      assertEquals(mutable, built);

		resp.StatusCode != http.StatusPartialContent &&
		resp.StatusCode != http.StatusNoContent {
		respTrace, err = httputil.DumpResponse(resp, true)
		if err != nil {
			return
		}
	} else {
		respTrace, err = httputil.DumpResponse(resp, false)
		if err != nil {
			return
		}
	}

	// Write response to trace output.

				bytesReturned := atomic.LoadInt64(&writer.bytesReturned)
				if !writer.write(newStatsMessage(writer.finBytesScanned, writer.finBytesProcessed, bytesReturned)) {
					break
				}
				writer.write(endMessage)
			} else {
				for payload.Len() > 0 {
					copiedLen := copy(writer.payloadBuffer[writer.payloadBufferIndex:], payload.Bytes())
					writer.payloadBufferIndex += copiedLen
					payload.Next(copiedLen)

    // ceil(199*index/2).
    if (index % 2 == 0) {
      int position = IntMath.divide(199 * index, 2, UNNECESSARY);
      return PSEUDORANDOM_DATASET_SORTED.get(position);
    } else {
      int positionFloor = IntMath.divide(199 * index, 2, FLOOR);
      int positionCeil = IntMath.divide(199 * index, 2, CEILING);
      double lowerValue = PSEUDORANDOM_DATASET_SORTED.get(positionFloor);

    Set<Feature<?>> features = computeMultimapAsMapGetFeatures(parentBuilder.getFeatures());
    if (Collections.disjoint(features, EnumSet.allOf(CollectionSize.class))) {
      return new TestSuite();
    } else {
      return CollectionTestSuiteBuilder.using(
              new MultimapAsMapGetGenerator<K, V, M>(parentBuilder.getSubjectGenerator()))
          .withFeatures(features)

    // ceil(199*index/2).
    if (index % 2 == 0) {
      int position = IntMath.divide(199 * index, 2, UNNECESSARY);
      return PSEUDORANDOM_DATASET_SORTED.get(position);
    } else {
      int positionFloor = IntMath.divide(199 * index, 2, FLOOR);
      int positionCeil = IntMath.divide(199 * index, 2, CEILING);
      double lowerValue = PSEUDORANDOM_DATASET_SORTED.get(positionFloor);