var keys []string
	keyval := make(map[string]string, len(headers))
	for key := range headers {
		lkey := strings.ToLower(key)
		if !strings.HasPrefix(lkey, "x-amz-") {
			continue
		}
		keys = append(keys, lkey)
		keyval[lkey] = strings.Join(headers[key], ",")
	}
	sort.Strings(keys)
	var canonicalHeaders []string
	for _, key := range keys {
		canonicalHeaders = append(canonicalHeaders, key+":"+keyval[key])
	}

	globalExpiryState = es

	// Prepare object versions
	obj := "obj-1"
	// Simulate objects uploaded 30 hours ago
	modTime := now.Add(-48 * time.Hour)
	uuids := make([]uuid.UUID, 5)
	for i := range uuids {
		uuids[i] = uuid.UUID([16]byte{15: uint8(i + 1)})
	}
	fivs := make([]FileInfo, 5)
	objInfos := make([]ObjectInfo, 5)
	objRetentionMeta := make(map[string]string)

	// requests on them.
	caseNumber := 0
	signFns := []testSignedReqFn{newTestSignedRequestV2, newTestSignedRequestV4}
	for _, oi := range objectInputs {
		objLen := objectLength(oi)
		for _, sf := range signFns {
			// Read whole object
			mkGetReq(oi, "", caseNumber, sf)
			caseNumber++

			// No range requests are possible if the
			// object length is 0
			if objLen == 0 {
				continue
			}

import org.opensearch.search.aggregations.bucket.missing.MissingAggregationBuilder;
import org.opensearch.search.aggregations.bucket.range.DateRangeAggregationBuilder;
import org.opensearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
import org.opensearch.search.aggregations.bucket.range.RangeAggregationBuilder;
import org.opensearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;

		},
	}

	for i, testCase := range testCases {
		var dirList []string
		dirList, err = xlStorage.ListDir(t.Context(), "", testCase.srcVol, testCase.srcPath, -1)
		if err != testCase.expectedErr {
			t.Errorf("TestXLStorage case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
		}
		if err == nil {
			for _, expected := range testCase.expectedListDir {

			canonicalizedETag: "abc",
		},
		{
			etag:              "abcd",
			canonicalizedETag: "abcd",
		},
		{
			etag:              "abcd\"\"",
			canonicalizedETag: "abcd",
		},
	}
	for _, test := range testCases {
		etag := canonicalizeETag(test.etag)
		if test.canonicalizedETag != etag {
			t.Fatalf("Expected %s , got %s", test.canonicalizedETag, etag)
		}
	}
}

// Tests - CheckPreconditions()

    private Builder() {}

    /**
     * Sets the safe range of characters for the escaper. Characters in this range that have no
     * explicit replacement are considered 'safe' and remain unescaped in the output. If {@code
     * safeMax < safeMin} then the safe range is empty.
     *
     * @param safeMin the lowest 'safe' character
     * @param safeMax the highest 'safe' character

			diskCount: 4,
		},
		// Test case - 2
		{
			disks:     []StorageAPI{nil, &xlStorage{}, &xlStorage{}, &xlStorage{}},
			diskCount: 3,
		},
	}
	for i, testCase := range testCases {
		cdiskCount := diskCount(testCase.disks)
		if cdiskCount != testCase.diskCount {
			t.Errorf("Test %d: Expected %d, got %d", i+1, testCase.diskCount, cdiskCount)
		}
	}
}

		for _, objectName := range objectNames {
			objectList = append(objectList, ObjectToDelete{
				ObjectV: ObjectV{
					ObjectName: objectName,
				},
			})
		}

		return objectList
	}

	getDeleteErrorList := func(objects []ObjectToDelete) (deleteErrorList []DeleteError) {
		for _, obj := range objects {
			deleteErrorList = append(deleteErrorList, DeleteError{

		var exit bool
		for !exit {
			select {
			case <-t.C:
			case <-GlobalContext.Done():
				exit = true
			}
			m.mu.RLock()
			for _, v := range m.buckets {
				if !exit {
					v.cleanup()
				}
			}
			m.mu.RUnlock()
			m.mu.Lock()
			for k, v := range m.trash {
				if time.Since(v.lastUpdate) > metacacheMaxRunningAge {
					v.delete(context.Background())
					delete(m.trash, k)
				}
			}