func TestUpdateOne(t *testing.T) {
	db := NewInMemDatabase()

	instance := new(types.VirtualMachine)
	instance.SetUuid(uuid.New())
	instance.SetName("instance")
	assert.NoError(t, db.Put(instance, nil, UIDList{}))

	vmi1 := new(types.VirtualMachineInterface)
	vmi1.SetUuid(uuid.New())
	vmi1.SetName("port1")
	assert.NoError(t, db.Put(vmi1, nil, GetReferenceList(vmi1)))

	vmi1.AddVirtualMachine(instance)
	assert.NoError(t, db.Update(vmi1, GetReferenceList(vmi1)))

	result, err := db.GetBackReferences(parseUID(instance.GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Contains(t, result, parseUID(vmi1.GetUuid()))

	vmi1.ClearVirtualMachine()
	assert.NoError(t, db.Update(vmi1, GetReferenceList(vmi1)))
	result, err = db.GetBackReferences(parseUID(instance.GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, result, 0)
}
func TestUpdateClearVM(t *testing.T) {
	client := new(ApiClient)
	client.Init()

	project := new(types.Project)
	project.SetFQName("domain", []string{"default-domain", "tenant"})
	assert.NoError(t, client.Create(project))

	vm := new(types.VirtualMachine)
	vm.SetFQName("project", []string{"default-domain", "tenant", "instance"})
	assert.NoError(t, client.Create(vm))

	vmi := new(types.VirtualMachineInterface)
	vmi.SetFQName("project", []string{"default-domain", "tenant", "instance"})
	vmi.AddVirtualMachine(vm)
	assert.NoError(t, client.Create(vmi))

	vmi.ClearVirtualMachine()
	assert.NoError(t, client.Update(vmi))

	assert.NoError(t, client.Delete(vm))
}
func TestUpdateRefs(t *testing.T) {
	db := NewInMemDatabase()

	var instances [8]*types.VirtualMachine
	for i := 0; i < 8; i++ {
		instance := new(types.VirtualMachine)
		instance.SetUuid(uuid.New())
		instance.SetName(fmt.Sprintf("instance-%d", i))
		assert.NoError(t, db.Put(instance, nil, UIDList{}))
		instances[i] = instance
	}

	vmi1 := new(types.VirtualMachineInterface)
	vmi1.SetUuid(uuid.New())
	vmi1.SetName("port1")
	vmi1.AddVirtualMachine(instances[0])
	vmi1.AddVirtualMachine(instances[1])
	vmi1.AddVirtualMachine(instances[2])
	assert.NoError(t, db.Put(vmi1, nil, GetReferenceList(vmi1)))

	vmi2 := new(types.VirtualMachineInterface)
	vmi2.SetUuid(uuid.New())
	vmi2.SetName("port2")
	vmi2.AddVirtualMachine(instances[2])
	vmi2.AddVirtualMachine(instances[4])
	vmi2.AddVirtualMachine(instances[3])
	assert.NoError(t, db.Put(vmi2, nil, GetReferenceList(vmi2)))

	r2, err := db.GetBackReferences(parseUID(instances[2].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r2, 2)
	assert.Contains(t, r2, parseUID(vmi1.GetUuid()))
	assert.Contains(t, r2, parseUID(vmi2.GetUuid()))

	r3, err := db.GetBackReferences(parseUID(instances[3].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r3, 1)

	vmi2.ClearVirtualMachine()
	vmi2.AddVirtualMachine(instances[4])
	vmi2.AddVirtualMachine(instances[6])
	assert.NoError(t, db.Update(vmi2, GetReferenceList(vmi2)))

	r2, err = db.GetBackReferences(parseUID(instances[2].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r2, 1)
	assert.Contains(t, r2, parseUID(vmi1.GetUuid()))

	r3, err = db.GetBackReferences(parseUID(instances[3].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r3, 0)

	r4, err := db.GetBackReferences(parseUID(instances[4].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r4, 1)
	assert.Contains(t, r4, parseUID(vmi2.GetUuid()))

	vmi1.ClearVirtualMachine()
	vmi1.AddVirtualMachine(instances[0])
	vmi1.AddVirtualMachine(instances[1])
	vmi1.AddVirtualMachine(instances[5])
	vmi1.AddVirtualMachine(instances[4])
	assert.NoError(t, db.Update(vmi1, GetReferenceList(vmi1)))

	r4, err = db.GetBackReferences(parseUID(instances[4].GetUuid()), "virtual_machine_interface")
	assert.NoError(t, err)
	assert.Len(t, r4, 2)
	assert.Contains(t, r4, parseUID(vmi1.GetUuid()))
	assert.Contains(t, r4, parseUID(vmi2.GetUuid()))
}