iostats, err := readDriveStats(tmpfile.Name())
			if err != nil && !testCase.expectErr {
				t.Fatalf("unexpected err; %v", err)
			}
			if testCase.expectErr && err == nil {
				t.Fatal("expected to fail but err is nil")
			}
			if !reflect.DeepEqual(iostats, testCase.expectedIOStats) {
				t.Fatalf("expected iostats: %v but got %v", testCase.expectedIOStats, iostats)
			}
		})
	}

	if err != errInvalidArgument {
		t.Fatalf("Expecting error, got %s", err)
	}

	_, _, err = waitForFormatErasure(true, nil, 1, 1, 16, "")
	if err != errInvalidArgument {
		t.Fatalf("Expecting error, got %s", err)
	}

	// Initializes all erasure disks
	storageDisks, format, err := waitForFormatErasure(true, endpoints, 1, 1, 16, "")
	if err != nil {
		t.Fatalf("Unable to format drives for erasure, %s", err)
	}

		nbytes, err := buf.WriteRune(r)
		if err != nil {
			t.Fatalf("WriteRune(%U) error: %s", r, err)
		}
		if nbytes != size {
			t.Fatalf("WriteRune(%U) expected %d, got %d", r, size, nbytes)
		}
		n += size
	}
	b = b[0:n]

	// Check the resulting bytes
	if !Equal(buf.Bytes(), b) {
		t.Fatalf("incorrect result from WriteRune: %q not %q", buf.Bytes(), b)
	}

	output := out.String()

	if c.expectedOutput != "" && c.expectedOutput != output {
		t.Fatalf("Unexpected output for 'istioctl %s'\n got: %q\nwant: %q", strings.Join(c.args, " "), output, c.expectedOutput)
	}

	if c.expectedString != "" && !strings.Contains(output, c.expectedString) {
		t.Fatalf("Output didn't match for 'istioctl %s'\n got %v\nwant: %v", strings.Join(c.args, " "), output, c.expectedString)
	}

		t.Fatalf("invalid sql generated, got %v", sql)
	}

	sql = dryRunDB.Where("a = ? or b = ?", "a", "b").Or("c = ? and d = ?", "c", "d").Find(&User{}).Statement.SQL.String()
	if !regexp.MustCompile(`WHERE \(\(a = .+ or b = .+\) OR \(c = .+ and d = .+\)\) AND .users.\..deleted_at. IS NULL`).MatchString(sql) {
		t.Fatalf("invalid sql generated, got %v", sql)
	}

			if err != nil {
				gotErr := err.(BatchJobYamlErr)
				testErr := test.err.(BatchJobYamlErr)
				if gotErr.message() != testErr.message() {
					t.Fatalf("Expected %v but got %v", test.err, err)
				}
			}
			if err == nil && test.err != nil {
				t.Fatalf("Expected %v but got nil", test.err)
			}
		})
	}

		case tierRequestsSuccess:
			succ += metric.Value
		case tierRequestsFailure:
			fail += metric.Value
		}
	}
	if int(succ) != expSuccess {
		t.Fatalf("Expected %d successes but got %f", expSuccess, succ)
	}
	if int(fail) != expFailure {
		t.Fatalf("Expected %d failures but got %f", expFailure, fail)
	}

	}

	if err := saveServerConfig(context.Background(), objLayer, globalServerConfig); err != nil {
		t.Fatalf("Unable to save updated config file %s", err)
	}

	// Initialize server config.
	if err := loadConfig(objLayer, nil); err != nil {
		t.Fatalf("Unable to initialize from updated config file %s", err)
	}

	if err := DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&lang).Error; err != nil {
		t.Fatalf("failed to upsert, got %v", err)
	}

	lang2 := Language{Code: "upsert", Name: "Upsert"}
	if err := DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&lang2).Error; err != nil {
		t.Fatalf("failed to upsert, got %v", err)
	}

	var langs []Language

		setup, err := newErasureTestSetup(t, test.dataBlocks, test.onDisks-test.dataBlocks, test.blocksize)
		if err != nil {
			t.Fatalf("Test %d: failed to create test setup: %v", i, err)
		}
		erasure, err := NewErasure(context.Background(), test.dataBlocks, test.onDisks-test.dataBlocks, test.blocksize)
		if err != nil {
			t.Fatalf("Test %d: failed to create ErasureStorage: %v", i, err)
		}
		disks := setup.disks
		data := make([]byte, test.data)