BeforeEach(func() {
				netlinker.LinkByNameReturns(nil, errors.New("no link for you"))
			})

			It("returns a meaningful error", func() {
				err := addressManager.AddAddress("my-link", address)
				Expect(err).To(MatchError("link by name failed: no link for you"))
			})
		})

		It("adds an address to the link", func() {
			err := addressManager.AddAddress("my-link", address)
			Expect(err).NotTo(HaveOccurred())

			Expect(netlinker.AddrAddCallCount()).To(Equal(1))
			actualLink, netlinkAddr := netlinker.AddrAddArgsForCall(0)

			Expect(actualLink).To(Equal(link))
			Expect(netlinkAddr.IPNet).To(Equal(address))
		})

		Context("when adding the addres fails", func() {
			BeforeEach(func() {
				netlinker.AddrAddReturns(errors.New("welp"))
			})

			It("returns the error", func() {
				err := addressManager.AddAddress("my-link", address)
				Expect(err).To(MatchError("address add failed: welp"))
			})
		})