}

	if len(updatedUser.Pets) != 2 {
		t.Fatalf("expected 2 pets, got %d", len(updatedUser.Pets))
	}

	petNames := make(map[string]bool)
	for _, pet := range updatedUser.Pets {
		petNames[pet.Name] = true
	}

	if !petNames["original-pet"] {
		t.Error("original pet not found")
	}

	if !petNames["new-pet"] {
		t.Error("new pet not found")
	}
}