Function TestMigrateColumnOrder

tests/migrate_test.go:871–937

check column order after migration, flaky test https://github.com/go-gorm/gorm/issues/4351

(t *testing.T)

// check column order after migration, flaky test
// https://github.com/go-gorm/gorm/issues/4351
func TestMigrateColumnOrder(t *testing.T) {
	type UserMigrateColumn struct {
		ID uint
	}
	DB.Migrator().DropTable(&UserMigrateColumn{})
	DB.AutoMigrate(&UserMigrateColumn{})

	type UserMigrateColumn2 struct {
		ID  uint
		F1  string
		F2  string
		F3  string
		F4  string
		F5  string
		F6  string
		F7  string
		F8  string
		F9  string
		F10 string
		F11 string
		F12 string
		F13 string
		F14 string
		F15 string
		F16 string
		F17 string
		F18 string
		F19 string
		F20 string
		F21 string
		F22 string
		F23 string
		F24 string
		F25 string
		F26 string
		F27 string
		F28 string
		F29 string
		F30 string
		F31 string
		F32 string
		F33 string
		F34 string
		F35 string
	}
	if err := DB.Table("user_migrate_columns").AutoMigrate(&UserMigrateColumn2{}); err != nil {
		t.Fatalf("failed to auto migrate, got error: %v", err)
	}

	columnTypes, err := DB.Table("user_migrate_columns").Migrator().ColumnTypes(&UserMigrateColumn2{})
	if err != nil {
		t.Fatalf("failed to get column types, got error: %v", err)
	}
	typ := reflect.Indirect(reflect.ValueOf(&UserMigrateColumn2{})).Type()
	numField := typ.NumField()
	if numField != len(columnTypes) {
		t.Fatalf("column's number not match struct and ddl, %d != %d", numField, len(columnTypes))
	}