BeforeEach(func() {
watcher = &fakes.MissWatcher{}
monitorReloader = &reloader.Reloader{
Watcher: watcher,
}
ns = &fakes.Namespace{}
ns.NameReturns("/some/sbox/path/vni-some-sandbox")
})
Describe("Callback", func() {
It("restart the monitor for the given namespace", func() {
err := monitorReloader.Callback(ns)
Expect(err).NotTo(HaveOccurred())
Expect(watcher.StartMonitorCallCount()).To(Equal(1))
calledNS, vxlanDev := watcher.StartMonitorArgsForCall(0)
Expect(calledNS).To(Equal(ns))
Expect(vxlanDev).To(Equal("vxlansome-sandbox"))
})
Context("failure cases", func() {
It("returns an error when the sandbox name is not valid", func() {
ns.NameReturns("some-invalid-name")
err := monitorReloader.Callback(ns)
Expect(err).To(MatchError("get vxlan name: not a valid sandbox name"))
})
It("returns an error when monitor does not start", func() {
watcher.StartMonitorReturns(errors.New("some-fake-error"))
HostNamespace: hostNS,
Watcher: fakeWatcher,
SandboxName: "some-sandbox",
VxlanLinkName: "some-vxlan-name",
}
hostNS.ExecuteStub = func(callback func(_ *os.File) error) error {
return callback(nil)
}
})
Describe("Execute", func() {
It("it calls StartMonitor inside the HostNamespace", func() {
hostNS.ExecuteStub = func(callback func(_ *os.File) error) error {
Expect(fakeWatcher.StartMonitorCallCount()).To(Equal(0))
callback(nil)
Expect(fakeWatcher.StartMonitorCallCount()).To(Equal(1))
return nil
}
err := startMonitor.Execute(context)
Expect(err).NotTo(HaveOccurred())
Expect(sandboxRepository.GetCallCount()).To(Equal(1))
Expect(sandboxRepository.GetArgsForCall(0)).To(Equal("some-sandbox"))
Expect(hostNS.ExecuteCallCount()).To(Equal(1))
ns, linkName := fakeWatcher.StartMonitorArgsForCall(0)
Expect(ns).To(Equal(sandboxNS))