Checksum   string
}

// Diff - returns error on first difference found in two configs.
func (s1 *ServerSystemConfig) Diff(s2 *ServerSystemConfig) error {
	if s1.Checksum != s2.Checksum {
		return fmt.Errorf("Expected MinIO binary checksum: %s, seen: %s", s1.Checksum, s2.Checksum)
	}

	ns1 := s1.NEndpoints
	ns2 := s2.NEndpoints
	if ns1 != ns2 {
		return fmt.Errorf("Expected number of endpoints %d, seen %d", ns1, ns2)
	}

	now := time.Now()
	assertEqualTests := []struct {
		name     string
		src, dst interface{}
		out      bool
	}{
		{"error equal", errors.New("1"), errors.New("1"), true},
		{"error not equal", errors.New("1"), errors.New("2"), false},
		{"driver.Valuer equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now, Valid: true}, true},

	}
	if len(data) <= 4 {
		return fmt.Errorf("%s: no data", ri.JobType)
	}
	// Read header
	switch binary.LittleEndian.Uint16(data[0:2]) {
	case format:
	default:
		return fmt.Errorf("%s: unknown format: %d", ri.JobType, binary.LittleEndian.Uint16(data[0:2]))
	}
	switch binary.LittleEndian.Uint16(data[2:4]) {
	case version:
	default:

		logger.Fatal(err, "Failed to connect to KMS")
	}

	if _, err = KMS.GenerateKey(GlobalContext, &kms.GenerateKeyRequest{}); errors.Is(err, kms.ErrKeyNotFound) {
		err = KMS.CreateKey(GlobalContext, &kms.CreateKeyRequest{Name: KMS.DefaultKey})
	}
	if err != nil && !errors.Is(err, kms.ErrKeyExists) && !errors.Is(err, kms.ErrPermission) {
		logger.Fatal(err, "Failed to connect to KMS")
	}
	GlobalKMS = KMS
}

			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 {

	if err := DB.Transaction(func(tx *gorm.DB) error {
		return nil
	}); err == nil {
		t.Errorf("should returns error when commit with closed conn, got error %v", err)
	}

	if err := DB.Session(&gorm.Session{PrepareStmt: true}).Transaction(func(tx *gorm.DB) error {
		return nil
	}); err == nil {
		t.Errorf("should returns error when commit with closed conn, got error %v", err)
	}
}

type disconnectReader struct {
	r  io.Reader
	mu sync.Mutex
}

func (d *disconnectReader) Read(p []byte) (n int, err error) {
	d.mu.Lock()
	defer d.mu.Unlock()
	if d.r != nil {
		return d.r.Read(p)
	}
	return 0, errors.New("reader closed")
}

func (d *disconnectReader) Close() error {
	d.mu.Lock()
	d.r = nil
	d.mu.Unlock()
	return nil
}

		t.Fatalf("should raise error when create users without languages reference")
	}

	if err := DB.Create(&user.Languages).Error; err != nil {
		t.Fatalf("no error should happen when create languages, but got %v", err)
	}

	if err := DB.Omit("Languages.*").Create(&user).Error; err != nil {
		t.Fatalf("no error should happen when create user when languages exists, but got %v", err)
	}

		t.Errorf("no error should happen, but got %v", err)
	}

	if result.Name != "groupby1" || result.Total != 660 {
		t.Errorf("name should be groupby, total should be 660, but got %+v", result)
	}

	if err := DB.Model(&User{}).Select("name, sum(age) as total").Where("name LIKE ?", "groupby%").Group("name").Having("name = ?", "groupby1").Scan(&result).Error; err != nil {

// The remaining payload and versions are returned.
func checkXL2V1(buf []byte) (payload []byte, major, minor uint16, e error) {
	if len(buf) <= 8 {
		return payload, 0, 0, fmt.Errorf("xlMeta: no data")
	}

	if !bytes.Equal(buf[:4], xlHeader[:]) {
		return payload, 0, 0, fmt.Errorf("xlMeta: unknown XLv2 header, expected %v, got %v", xlHeader[:4], buf[:4])
	}

	if bytes.Equal(buf[4:8], []byte("1   ")) {