if ns.ExecuteCallCount() == 1 {
Expect(netlinker.LinkByNameCallCount()).To(Equal(1))
}
return nil
}
inserter.HandleResolvedNeighbors(ready, ns, "some-vxlan-name", resolved)
Eventually(ready).Should(BeClosed())
Expect(ns.ExecuteCallCount()).To(Equal(2))
Expect(netlinker.LinkByNameArgsForCall(0)).To(Equal("some-vxlan-name"))
})
Context("when the vxlan device cannot be found", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(nil, errors.New("boom-boom"))
})
It("returns a meaningful error", func() {
inserter.HandleResolvedNeighbors(ready, ns, "some-vxlan-name", resolved)
Eventually(ready).Should(Receive(MatchError(`namespace execute failed: find link "some-vxlan-name": boom-boom`)))
})
})
It("sets a neighbor entry in the sandbox namespace", func() {
ns.ExecuteStub = func(callback func(ns *os.File) error) error {
Expect(netlinker.SetNeighCallCount()).To(Equal(0))
callback(nil)
if ns.ExecuteCallCount() == 2 {
Expect(netlinker.SetNeighCallCount()).To(Equal(2))
}
Context("when adding the veth link fails", func() {
BeforeEach(func() {
netlinker.LinkAddReturns(errors.New("some error"))
})
It("returns the error", func() {
err := factory.CreateVeth("host", "peer", 999)
Expect(err).To(MatchError("link add: some error"))
})
})
})
Describe("FindLink", func() {
Context("when a link is found", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(&netlink.Vxlan{VxlanId: 41}, nil)
})
It("should return the link", func() {
link, err := factory.FindLink("some-device-name")
Expect(err).NotTo(HaveOccurred())
Expect(link).To(Equal(&netlink.Vxlan{VxlanId: 41}))
})
})
Context("when the link does not exist", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(nil, errors.New("not found"))
})
It("should return nil", func() {
})
Describe("AddAddress", func() {
var (
link netlink.Link
address *net.IPNet
)
BeforeEach(func() {
address = &net.IPNet{
IP: net.ParseIP("192.168.1.1"),
Mask: net.CIDRMask(24, 32),
}
link = &netlink.Veth{}
netlinker.LinkByNameReturns(link, nil)
})
It("finds the link by name", func() {
err := addressManager.AddAddress("my-link", address)
Expect(err).NotTo(HaveOccurred())
Expect(netlinker.LinkByNameCallCount()).To(Equal(1))
Expect(netlinker.LinkByNameArgsForCall(0)).To(Equal("my-link"))
})
Context("when finding the link fails", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(nil, errors.New("no link for you"))
})