id := uint(100)
	user := AssociationEmptyUser{
		ID:   id,
		Name: "jinzhu",
		Pets: []AssociationEmptyPet{
			{AssociationEmptyUserID: &id, Name: "bar"},
			{AssociationEmptyUserID: &id, Name: "foo"},
		},
	}

	err := DB.Session(&gorm.Session{FullSaveAssociations: true}).Create(&user).Error
	if err != nil {
		t.Fatalf("Failed to create, got error: %v", err)