context = &fakes.Context{}
		linkFactory = &fakes.LinkFactory{}
		context.LinkFactoryReturns(linkFactory)

		createVxlan = commands.CreateVxlan{
			Name: "my-vxlan",
			VNI:  99,
		}
	})

	It("uses the factory to create the adapter", func() {
		err := createVxlan.Execute(context)
		Expect(err).NotTo(HaveOccurred())

		Expect(linkFactory.CreateVxlanCallCount()).To(Equal(1))
		name, vni := linkFactory.CreateVxlanArgsForCall(0)
		Expect(name).To(Equal("my-vxlan"))
		Expect(vni).To(Equal(99))
	})

	Context("when creating the vxlan link fails", func() {
		BeforeEach(func() {
			linkFactory.CreateVxlanReturns(errors.New("no vxlan for you"))
		})

		It("wraps and propagates the error", func() {
			err := createVxlan.Execute(context)
			Expect(err).To(MatchError("create vxlan: no vxlan for you"))
		})
	})