ns.ExecuteStub = func(callback func(_ *os.File) error) error {
if ns.ExecuteCallCount() == 1 {
Expect(netlinker.LinkByNameCallCount()).To(Equal(0))
}
callback(nil)
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 {
_, err := factory.FindLink("some-device-name")
Expect(err).To(Equal(errors.New("not found")))
})
})
})
Describe("Exists", func() {
Context("when a link is found", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(&netlink.Vxlan{VxlanId: 41}, nil)
})
It("returns true", func() {
Expect(factory.Exists("some-device-name")).To(BeTrue())
Expect(netlinker.LinkByNameCallCount()).To(Equal(1))
Expect(netlinker.LinkByNameArgsForCall(0)).To(Equal("some-device-name"))
})
})
Context("when link by name returns an error", func() {
BeforeEach(func() {
netlinker.LinkByNameReturns(nil, errors.New("not found"))
})
It("returns false", func() {
Expect(factory.Exists("some-device-name")).To(BeFalse())
Expect(netlinker.LinkByNameCallCount()).To(Equal(1))
Expect(netlinker.LinkByNameArgsForCall(0)).To(Equal("some-device-name"))
})
})
})
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"))
})
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)