func debugBehavior(args *skel.CmdArgs, command string) error {
if !strings.HasPrefix(args.Args, "DEBUG=") {
fmt.Printf(`{}`)
os.Stderr.WriteString("CNI_ARGS empty, no debug behavior\n")
return nil
}
debugFilePath := strings.TrimPrefix(args.Args, "DEBUG=")
debug, err := debug.ReadDebug(debugFilePath)
if err != nil {
return err
}
debug.CmdArgs = *args
debug.Command = command
err = debug.WriteDebug(debugFilePath)
if err != nil {
return err
}
if debug.ReportError != "" {
return errors.New(debug.ReportError)
} else {
os.Stdout.WriteString(debug.ReportResult)
}
return nil
}
os.Remove(debugFileName)
})
It("responds to ADD using the ReportResult debug field", func() {
session, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)
Expect(err).NotTo(HaveOccurred())
Eventually(session).Should(gexec.Exit(0))
Expect(session.Out.Contents()).To(MatchJSON(reportResult))
})
It("records all the args provided by skel.PluginMain", func() {
session, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)
Expect(err).NotTo(HaveOccurred())
Eventually(session).Should(gexec.Exit(0))
debug, err := noop_debug.ReadDebug(debugFileName)
Expect(err).NotTo(HaveOccurred())
Expect(debug.Command).To(Equal("ADD"))
Expect(debug.CmdArgs).To(Equal(expectedCmdArgs))
})
Context("when the ReportError debug field is set", func() {
BeforeEach(func() {
debug.ReportError = "banana"
Expect(debug.WriteDebug(debugFileName)).To(Succeed())
})
It("returns an error to skel.PluginMain, causing the process to exit code 1", func() {
session, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)
Expect(err).NotTo(HaveOccurred())
Eventually(session).Should(gexec.Exit(1))
Describe("AddNetwork", func() {
It("executes the plugin with command ADD", func() {
result, err := cniConfig.AddNetwork(netConfig, runtimeConfig)
Expect(err).NotTo(HaveOccurred())
Expect(result).To(Equal(&types.Result{
IP4: &types.IPConfig{
IP: net.IPNet{
IP: net.ParseIP("10.1.2.3"),
Mask: net.IPv4Mask(255, 255, 255, 0),
},
},
}))
debug, err := noop_debug.ReadDebug(debugFilePath)
Expect(err).NotTo(HaveOccurred())
Expect(debug.Command).To(Equal("ADD"))
Expect(debug.CmdArgs).To(Equal(expectedCmdArgs))
})
Context("when finding the plugin fails", func() {
BeforeEach(func() {
netConfig.Network.Type = "does-not-exist"
})
It("returns the error", func() {
_, err := cniConfig.AddNetwork(netConfig, runtimeConfig)
Expect(err).To(MatchError(ContainSubstring(`failed to find plugin "does-not-exist"`)))
})
})