baseTestCases := []TestSuiteCommon{
		// Init and run test on ErasureSD backend with signature v4.
		{serverType: "ErasureSD", signer: signerV4},
		// Init and run test on ErasureSD backend, with tls enabled.
		{serverType: "ErasureSD", signer: signerV4, secure: true},
		// Init and run test on Erasure backend.
		{serverType: "Erasure", signer: signerV4},
		// Init and run test on ErasureSet backend.

	// Policies were found, evaluate all of them.
	return sys.GetCombinedPolicy(policy).IsAllowed(args)
}

// IsAllowed - checks given policy args is allowed to continue the Rest API.
func (sys *IAMSys) IsAllowed(args policy.Args) bool {
	// If opa is configured, use OPA always.
	if authz := newGlobalAuthZPluginFn(); authz != nil {
		ok, err := authz.IsAllowed(args)
		if err != nil {

		index := index
		g.Go(func() error {
			return z.serverPools[index].Shutdown(ctx)
		}, index)
	}

	for _, err := range g.Wait() {
		if err != nil {
			storageLogIf(ctx, err)
		}
		// let's the rest shutdown
	}
	return nil
}

// Legacy returns 'true' if distribution algo is CRCMOD
func (z *erasureServerPools) Legacy() (ok bool) {
	ok = true
	for _, set := range z.serverPools {

			wantResult: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}`,
			withJSON: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}
{"request":{"uri":"/2","header":{}}}`,
		},
		{
			name:       "is-not-missing",
			query:      `select * from s3object[*] as s where s.request.header['User-Agent'] is not missing`,
			wantResult: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}`,

		result ListObjectsInfo
		err    error
		// Flag indicating whether the test is expected to pass or not.
		shouldPass bool
	}{
		// Test cases with invalid bucket names ( Test number 1-4 ).
		{".test", "", "", "", 0, ListObjectsInfo{}, BucketNameInvalid{Bucket: ".test"}, false},
		{"Test", "", "", "", 0, ListObjectsInfo{}, BucketNameInvalid{Bucket: "Test"}, false},

		expectedErr    error
		// Flag indicating whether the test is expected to pass or not.
		shouldPass bool
	}{
		// Test cases with invalid bucket names ( Test number 1-4 ).
		{".test", "", "", "", "", 0, ListMultipartsInfo{}, BucketNameInvalid{Bucket: ".test"}, false},
		{"Test", "", "", "", "", 0, ListMultipartsInfo{}, BucketNameInvalid{Bucket: "Test"}, false},

	apiRouter http.Handler, credentials auth.Credentials, t *testing.T)

// Regular object test type.
type objTestType func(obj ObjectLayer, instanceType string, t TestErrHandler)

// Special test type for test with directories
type objTestTypeWithDirs func(obj ObjectLayer, instanceType string, dirs []string, t TestErrHandler)

// Special object test type for disk not found situations.

		if err != nil {
			return np, grid.NewRemoteErr(err)
		}
	default:
		return np, grid.NewRemoteErr(errUnsupportedSignal)
	}
	return np, nil
}

// ListenHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) ListenHandler(ctx context.Context, v *grid.URLValues, out chan<- *grid.Bytes) *grid.RemoteErr {
	values := v.Values()
	defer v.Recycle()
	var prefix string

	s.Unlock()
	return diskID, nil
}

// Make a volume entry.
func (s *xlStorage) SetDiskID(id string) {
	// NO-OP for xlStorage as it is handled either by xlStorageDiskIDCheck{} for local disks or
	// storage rest server for remote disks.
}

func (s *xlStorage) MakeVolBulk(ctx context.Context, volumes ...string) error {
	for _, volume := range volumes {
		err := s.MakeVol(ctx, volume)

			t.Errorf("Test %d: Expected error %v but got none.", i, test.expError)
		case err == nil && n != int64(test.length):
			t.Errorf("Test %d: %d bytes were expected, but %d were written", i, test.length, n)
		case err == nil && !bytes.Equal(data[test.offset:test.offset+test.length], buffer):
			t.Errorf("Test %d: Expected bytes: %v, but got: %v", i, data[test.offset:test.offset+test.length], buffer)