lca: add negative test for patching the stage from idle to rollback.

Adding a test per the title.

Signed-off-by: Alexander Chuzhoy <[email protected]>

tests/lca/imagebasedupgrade/mgmt/negative/internal/tsparams/const.go

@@ -6,4 +6,7 @@ const (
 
 	// LabelImmutableSeedImage represents immutable-seed-image label that can be used for test cases selection.
 	LabelImmutableSeedImage = "immutable-seed-image"
+
+	// LabelStageTransitionIdleToRollback represents stage-transition-idle-to-rollback label that can be used for test cases selection.
+	LabelStageTransitionIdleToRollback = "stage-transition-idle-to-rollback"
 )

tests/lca/imagebasedupgrade/mgmt/negative/tests/ibu-invalid-next-stage.go

@@ -0,0 +1,76 @@
+package negative_test
+
+import (
+	"time"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+	"github.com/openshift-kni/eco-goinfra/pkg/lca"
+	"github.com/openshift-kni/eco-goinfra/pkg/reportxml"
+	"github.com/openshift-kni/eco-gotests/tests/lca/imagebasedupgrade/internal/nodestate"
+	. "github.com/openshift-kni/eco-gotests/tests/lca/imagebasedupgrade/mgmt/internal/mgmtinittools"
+	"github.com/openshift-kni/eco-gotests/tests/lca/imagebasedupgrade/mgmt/negative/internal/tsparams"
+	"golang.org/x/exp/slices"
+)
+
+var _ = Describe(
+	"Patching ibu stage from Idle to Rollback",
+	Ordered,
+	Label(tsparams.LabelStageTransitionIdleToRollback), func() {
+		var (
+			ibu *lca.ImageBasedUpgradeBuilder
+			err error
+		)
+
+		BeforeAll(func() {
+			By("Pull the imagebasedupgrade from the cluster")
+			ibu, err = lca.PullImageBasedUpgrade(APIClient)
+			Expect(err).NotTo(HaveOccurred(), "error pulling ibu resource from cluster")
+
+			By("Ensure that imagebasedupgrade stage is set to Idle")
+			Expect(string(ibu.Object.Spec.Stage)).To(Equal("Idle"), "error: ibu resource contains unexpected state")
+		})
+
+		AfterAll(func() {
+			By("Revert IBU resource back to Idle stage")
+			ibu, err = lca.PullImageBasedUpgrade(APIClient)
+			Expect(err).NotTo(HaveOccurred(), "error pulling imagebasedupgrade resource")
+
+			if ibu.Object.Spec.Stage == "Upgrade" {
+				By("Set IBU stage to Rollback")
+				_, err = ibu.WithStage("Rollback").Update()
+				Expect(err).NotTo(HaveOccurred(), "error setting ibu to rollback stage")
+
+				By("Wait for IBU resource to be available")
+				err = nodestate.WaitForIBUToBeAvailable(APIClient, ibu, time.Minute*10)
+				Expect(err).NotTo(HaveOccurred(), "error waiting for ibu resource to become available")
+
+				By("Wait until Rollback stage has completed")
+				_, err = ibu.WaitUntilStageComplete("Rollback")
+				Expect(err).NotTo(HaveOccurred(), "error waiting for rollback stage to complete")
+			}
+
+			if slices.Contains([]string{"Prep", "Rollback"}, string(ibu.Object.Spec.Stage)) {
+				By("Set IBU stage to Idle")
+				_, err = ibu.WithStage("Idle").Update()
+				Expect(err).NotTo(HaveOccurred(), "error setting ibu to idle stage")
+
+				By("Wait until IBU has become Idle")
+				_, err = ibu.WaitUntilStageComplete("Idle")
+				Expect(err).NotTo(HaveOccurred(), "error waiting for idle stage to complete")
+			}
+
+			Expect(string(ibu.Object.Spec.Stage)).To(Equal("Idle"), "error: ibu resource contains unexpected state")
+
+		})
+
+		It("fails because from Idle it's not possible to move to Rollback stage", reportxml.ID("71738"), func() {
+
+			By("Setting the IBU stage to Rollback")
+
+			_, err := ibu.WithStage("Rollback").Update()
+			Expect(err.Error()).To(ContainSubstring("the stage transition is not permitted"),
+				"error: ibu seedimage updated with wrong next stage")
+
+		})
+	})