mu := NewDRWMutex(ds, "")
	if slack {
		b.SetParallelism(10)
	}
	b.RunParallel(func(pb *testing.PB) {
		foo := 0
		for pb.Next() {
			mu.Lock(id, source)
			mu.Unlock(context.Background())
			if work {
				for i := 0; i < 100; i++ {
					foo *= 2
					foo /= 2
				}
			}
		}
		_ = foo
	})
}

func BenchmarkMutex(b *testing.B) {
	benchmarkMutex(b, false, false)
}

	}
	return users
}

// Extract path string by stripping off the `prefix` value and the suffix,
// value, usually in the following form.
//
//	s := "config/iam/users/foo/config.json"
//	prefix := "config/iam/users/"
//	suffix := "config.json"
//	result is foo
func extractPathPrefixAndSuffix(s string, prefix string, suffix string) string {
	return pathClean(strings.TrimSuffix(strings.TrimPrefix(s, prefix), suffix))
}

				best = other
				bestIdx = otherIdx
				continue
			}
			// We should make sure to avoid objects and directories
			// of this fashion such as
			//  - foo-1
			//  - foo-1/
			// we should avoid this situation by making sure that
			// we compare the `foo-1/` after path.Clean() to
			// de-dup the entries.
			if path.Clean(best.name) == path.Clean(other.name) {
				toMerge = append(toMerge, otherIdx)
				continue

		}
	}
	partsMetadata[0] = partsMetadataBackup // Revert before going to the next test

	// Test 3: Not synchronized DataDir
	partsMetadataBackup = partsMetadata[1]
	partsMetadata[1].DataDir = "foo-random"

	errs = make([]error, len(erasureDisks))
	filteredDisks, _, _ = disksWithAllParts(ctx, erasureDisks, partsMetadata,
		errs, fi, bucket, object, madmin.HealDeepScan)

			recordDelimiter: "\n",
			fieldDelimiter:  ",",
			sendErr:         nil,
			header:          true,
			wantColumns:     []string{"header1", "header2", "header3"},
			wantFields:      "ok1,ok2,ok3\n" + `"foo""bar"` + "\n",
			wantErr:         io.EOF,
		},
		{
			// This works since LazyQuotes is true:
			file:            "invalid-csv.csv",
			recordDelimiter: "\n",
			fieldDelimiter:  ",",

		{"foo", "newline\n", testData, false, true},
		{"foo", "newline\t", testData, false, true},
		{"foo", "newline \n", testData, false, true},
		{"foo", "newline$$$\n", testData, false, true},
		{"foo", "newline%%%\n", testData, false, true},
		{"foo", "newline \t % $ & * ^ # @ \n", testData, false, true},
		{"foo", "\n\tnewline \t % $ & * ^ # @ \n", testData, false, true},
	}

	for i, testCase := range testCases {

	}{
		{[]string{"", ""}, ""},
		{[]string{"a", "b"}, ""},
		{[]string{"a", "a"}, "a"},
		{[]string{"a/", "a/"}, "a/"},
		{[]string{"abcd/", ""}, ""},
		{[]string{"abcd/foo/", "abcd/bar/"}, "abcd/"},
		{[]string{"abcd/foo/bar/", "abcd/foo/bar/zoo"}, "abcd/foo/bar/"},
	}

	for i, test := range testCases {
		foundPrefix := lcp(test.prefixes, true)
		if foundPrefix != test.commonPrefix {

		{[]byte(`<S3Key><FilterRule><Name>suffix</Name><Value>foo/bar</Value></FilterRule></S3Key>`), &FilterRuleList{[]FilterRule{{"suffix", "foo/bar"}}}, false},
		{[]byte(`<S3Key><FilterRule><Name>prefix</Name><Value>Hello/世界</Value></FilterRule><FilterRule><Name>suffix</Name><Value>foo/bar</Value></FilterRule></S3Key>`), &FilterRuleList{[]FilterRule{{"prefix", "Hello/世界"}, {"suffix", "foo/bar"}}}, false},
	}

	for i, testCase := range testCases {

	u2, _ := url.Parse("https://example.org/path")
	u4, _ := url.Parse("http://192.168.253.200/path")
	rootSlashFoo, _ := filepath.Abs("/foo")
	testCases := []struct {
		arg              string
		expectedEndpoint Endpoint
		expectedType     EndpointType
		expectedErr      error
	}{
		{"/foo", Endpoint{&url.URL{Path: rootSlashFoo}, true, -1, -1, -1}, PathEndpointType, nil},

			return
		}
	}

	// We map the X.509 subject common name to the policy. So, a client
	// with the common name "foo" will be associated with the policy "foo".
	// Other mapping functions - e.g. public-key hash based mapping - are
	// possible but not implemented.
	//
	// Group mapping is not possible with standard X.509 certificates.