})
Context("when finding the link fails", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(nil, errors.New("no link for you"))
})
It("returns a meaningful error", func() {
err := factory.SetNamespace("link-name", 99)
Expect(err).To(MatchError("failed to find link: no link for you"))
})
})
Context("when assigning the namespace fails", func() {
BeforeEach(func() {
netlinker.LinkSetNsFdReturns(errors.New("what namespace?"))
})
It("returns a meaningful error", func() {
err := factory.SetNamespace("link-name", 99)
Expect(err).To(MatchError("failed to set link namespace: what namespace?"))
})
})
})
Describe("HardwareAddress", func() {
var (
expectedHwAddr net.HardwareAddr
link *netlink.Dummy
)