// Append
	toy := Toy{Name: "toy-has-one-append"}

	if err := DB.Model(&pet2).Association("Toy").Append(&toy); err != nil {
		t.Fatalf("Error happened when append toy, got %v", err)
	}

	if toy.ID == 0 {
		t.Fatalf("Toy's ID should be created")
	}

	pet.Toy = toy
	CheckPet(t, pet2, pet)

	AssertAssociationCount(t, pet, "Toy", 1, "AfterAppend")

	// Replace