t.Fatalf("MinIO %s: Failed parsing response body: <ERROR> %v", instanceType, err)
		}

		actualError := &APIErrorResponse{}
		if err = xml.Unmarshal(actualContent, actualError); err != nil {
			t.Errorf("MinIO %s: error response failed to parse error XML", instanceType)
		}

		if actualError.BucketName != bucketName {
			t.Errorf("MinIO %s: error response bucket name differs from expected value", instanceType)

				HTTPStatusCode: http.StatusBadRequest,
			}
		case replication.Error:
			apiErr = APIError{
				Code:           "MalformedXML",
				Description:    e.Error(),
				HTTPStatusCode: http.StatusBadRequest,
			}
		case tags.Error:
			apiErr = APIError{
				Code:           e.Code(),
				Description:    e.Error(),
				HTTPStatusCode: http.StatusBadRequest,
			}
		case policy.Error:

	atomic.AddInt32(&s.scanning, 1)
	defer atomic.AddInt32(&s.scanning, -1)

	var err error
	stopFn := globalScannerMetrics.log(scannerMetricScanBucketDrive, s.drivePath, cache.Info.Name)
	defer func() {
		res := make(map[string]string)
		if err != nil {
			res["err"] = err.Error()
		}
		stopFn(res)
	}()

			if testCase.expectedError.Error() != actualErr.Error() {
				t.Errorf("Test %d: %s: Expected to fail with error \"%s\", but instead failed with error \"%s\" instead.", i+1, instanceType, testCase.expectedError.Error(), actualErr.Error())
			}
		}
		// Test passes as expected, but the output values are verified for correctness here.
		if actualErr == nil && testCase.shouldPass {

	saveIAMConfig(ctx context.Context, item interface{}, path string, opts ...options) error
	loadIAMConfig(ctx context.Context, item interface{}, path string) error
	deleteIAMConfig(ctx context.Context, path string) error
	savePolicyDoc(ctx context.Context, policyName string, p PolicyDoc) error
	saveMappedPolicy(ctx context.Context, name string, userType IAMUserType, isGroup bool, mp MappedPolicy, opts ...options) error

		if err != nil {
			iamLogIf(GlobalContext, fmt.Errorf("error parsing role ARN %s: %v", roleArn, err))
			return false
		}
		policies = newMappedPolicy(sys.rolesMap[arn]).toSlice()

	default:
		// Otherwise, inherit parent user's policy
		var err error
		policies, err = sys.PolicyDBGet(parentUser, args.Groups...)
		if err != nil {
			iamLogIf(GlobalContext, fmt.Errorf("error fetching policies on %s: %v", parentUser, err))

	derrs := make([]error, len(poolIndices))
	dobjects := make([]ObjectInfo, len(poolIndices))

	// Delete concurrently in all server pools that reported no error or read quorum error
	// where the read quorum issue is from metadata inconsistency.
	var wg sync.WaitGroup
	for idx, pe := range poolIndices {

				if !strings.Contains(err.Error(), testCase.err.Error()) {
					t.Errorf("Test %d: %s: Expected to fail with error \"%s\", but instead failed with error \"%s\" instead", i+1, instanceType, testCase.err.Error(), err.Error())
				}
			}
			// Since there are cases for which ListObjects fails, this is
			// necessary. Test passes as expected, but the output values
			// are verified for correctness here.

	for m := range re {
		if err := enc.Encode(m); err != nil {
			s.writeErrorResponse(w, errors.New("Encoding mrf failed: "+err.Error()))
			return
		}
	}
}

// DevNull - everything goes to io.Discard
func (s *peerRESTServer) DevNull(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		s.writeErrorResponse(w, errors.New("invalid request"))
		return
	}

	globalNetPerfRX.Connect()

	if err := DB.Exec(sql).Error; err != nil {
		t.Errorf("Failed, got error: %v", err)
	}

	session := DB.Session(&gorm.Session{Logger: Tracer{
		Logger: DB.Config.Logger,
		Test: func(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error) {
			sql, _ := fc()
			if strings.HasPrefix(sql, "ALTER TABLE") {
				t.Errorf("shouldn't execute: sql=%s", sql)
			}
		},