}
		if len(output) > 0 && output[0] == want {
			output = output[1:]
		} else {
			t.Errorf("missing output: %q", want)
		}
	}
	for len(output) > 0 {
		if output[0] == "" {
			// spurious blank caused by Split on "\n"
			output = output[1:]
			continue
		}
		t.Errorf("unexpected output: %q", output[0])
		output = output[1:]
	}

	// Checked printing.
	// Now check machine code layout.

		t.Errorf("account number should not been changed, expects: %v, got %v", user.Account.Number, result.Account.Number)
	}
}

func TestUpdatesWithBlankValues(t *testing.T) {
	user := *GetUser("updates_with_blank_value", Config{})
	DB.Save(&user)

	var user2 User
	user2.ID = user.ID
	DB.Model(&user2).Updates(&User{Age: 100})

	var result User
	DB.First(&result, user.ID)

	lineNum       int   // Line number in source file.
	errorLine     int   // Line number of last error.
	errorCount    int   // Number of errors.
	sawCode       bool  // saw code in this file (as opposed to comments and blank lines)
	pc            int64 // virtual PC; count of Progs; doesn't advance for GLOBL or DATA.
	input         []lex.Token
	inputPos      int
	pendingLabels []string // Labels to attach to next instruction.

	// position to discover whether there is a blank before the parenthesis.
	// We only get here if defining a macro inside a macro.
	// This imperfect implementation means we cannot tell the difference between
	//	#define A #define B(x) x
	// and
	//	#define A #define B (x) x
	// The first definition of B has an argument, the second doesn't. Because we let

		t.Errorf("Update a filed with a default value should occur. But got %v\n", animal.Name)
	}

	// When changing a field with a default value with blank value
	animal.Name = ""
	DB.Save(&animal)
	DB.First(&animal, animal.Counter)
	if animal.Name != "" {
		t.Errorf("Update a filed to blank with a default value should occur. But got %v\n", animal.Name)
	}

		return fmt.Sprintf
	}()

	BgYellow = func() func(format string, a ...interface{}) string {
		if IsTerminal() {
			return color.New(color.BgYellow).SprintfFunc()
		}
		return fmt.Sprintf
	}()

	Black = func() func(format string, a ...interface{}) string {
		if IsTerminal() {
			return color.New(color.FgBlack).SprintfFunc()
		}
		return fmt.Sprintf
	}()

	FgRed = func() func(a ...interface{}) string {

	} else {
		introMsg += color.Bold(err.Error())
	}
	renderedTxt += color.Red(introMsg) + "\n"
	// Add action message
	if uiErr.action != "" {
		renderedTxt += "> " + color.BgYellow(color.Black(uiErr.action)) + "\n"
	}
	// Add hint
	if uiErr.hint != "" {
		renderedTxt += color.Bold("HINT:") + "\n"
		renderedTxt += "  " + uiErr.hint
	}
	return renderedTxt

// of leak checking. It excludes testing or runtime ones.
func pickRelevantGoroutines() (gs []string) {
	// get runtime stack buffer.
	buf := debug.Stack()
	// runtime stack of go routines will be listed with 2 blank spaces between each of them, so split on "\n\n" .
	for _, g := range strings.Split(string(buf), "\n\n") {
		// Again split on a new line, the first line of the second half contains the info about the go routine.

						return nil
					} else if err != nil {
						return err
					}
				}
			}

			// If we've explicitly asked for all namespaces, blank the selectedNamespace var out
			// If the user hasn't specified a namespace, use the default namespace
			if allNamespaces {
				selectedNamespace = ""
			} else if selectedNamespace == "" {

		t.Fatalf("Failed to migrate for uuid default value, got error: %v", err)
	}

	harumph := Harumph{}
	if err := DB.Create(&harumph).Error; err == nil {
		t.Fatalf("should failed to create data, name can't be blank")
	}

	harumph = Harumph{Name: "jinzhu"}
	if err := DB.Create(&harumph).Error; err != nil {
		t.Fatalf("should be able to create data, but got %v", err)
	}

	var result Harumph