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Merge pull request #314 from rosenhouse/noop-helpful-message

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plugins/noop: return a helpful message for test authors
This commit is contained in:
Gabe Rosenhouse 2016-12-15 18:35:43 -08:00 committed by GitHub
commit 652bae1deb
3 changed files with 29 additions and 3 deletions
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2
plugins/test/noop/debug/debug.go
View File

@ -22,6 +22,8 @@ import (
"github.com/containernetworking/cni/pkg/skel"
)
const EmptyReportResultMessage = "set debug.ReportResult and call debug.WriteDebug() before calling this plugin"
// Debug is used to control and record the behavior of the noop plugin
type Debug struct {
// Report* fields allow the test to control the behavior of the no-op plugin

10
plugins/test/noop/main.go
View File

@ -29,7 +29,7 @@ import (
"github.com/containernetworking/cni/pkg/skel"
"github.com/containernetworking/cni/pkg/version"
"github.com/containernetworking/cni/plugins/test/noop/debug"
noop_debug "github.com/containernetworking/cni/plugins/test/noop/debug"
)
// parse extra args i.e. FOO=BAR;ABC=123
@ -60,7 +60,7 @@ func debugBehavior(args *skel.CmdArgs, command string) error {
return nil
}
debug, err := debug.ReadDebug(debugFilePath)
debug, err := noop_debug.ReadDebug(debugFilePath)
if err != nil {
return err
}
@ -68,6 +68,10 @@ func debugBehavior(args *skel.CmdArgs, command string) error {
debug.CmdArgs = *args
debug.Command = command
if debug.ReportResult == "" {
debug.ReportResult = fmt.Sprintf(` { "result": %q }`, noop_debug.EmptyReportResultMessage)
}
err = debug.WriteDebug(debugFilePath)
if err != nil {
return err
@ -101,7 +105,7 @@ func debugGetSupportedVersions() []string {
panic("test setup error: missing DEBUG in CNI_ARGS")
}
debug, err := debug.ReadDebug(debugFilePath)
debug, err := noop_debug.ReadDebug(debugFilePath)
if err != nil {
panic("test setup error: unable to read debug file: " + err.Error())
}

20
plugins/test/noop/noop_test.go
View File

@ -96,6 +96,26 @@ var _ = Describe("No-op plugin", func() {
Expect(debug.CmdArgs).To(Equal(expectedCmdArgs))
})
Context("when the ReportResult debug field is empty", func() {
BeforeEach(func() {
debug.ReportResult = ""
Expect(debug.WriteDebug(debugFileName)).To(Succeed())
})
It("substitutes a helpful message for the test author", func() {
expectedResultString := fmt.Sprintf(` { "result": %q }`, noop_debug.EmptyReportResultMessage)
session, err := gexec.Start(cmd, GinkgoWriter, GinkgoWriter)
Expect(err).NotTo(HaveOccurred())
Eventually(session).Should(gexec.Exit(0))
Expect(session.Out.Contents()).To(MatchJSON(expectedResultString))
debug, err := noop_debug.ReadDebug(debugFileName)
Expect(err).NotTo(HaveOccurred())
Expect(debug.ReportResult).To(MatchJSON(expectedResultString))
})
})
Context("when the ReportError debug field is set", func() {
BeforeEach(func() {
debug.ReportError = "banana"