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

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"
+
+	// LabelStageTransition represents stage-transition label that can be used for test cases selection.
+	LabelStageTransition = "stage-transition"
 )

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

@@ -0,0 +1,61 @@
+package negative_test
+
+import (
+	. "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/mgmt/internal/mgmtinittools"
+	"github.com/openshift-kni/eco-gotests/tests/lca/imagebasedupgrade/mgmt/negative/internal/tsparams"
+)
+
+var _ = Describe(
+	"Patching ibu with a not supported next stage",
+	Ordered,
+	Label(tsparams.LabelStageTransition), 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")
+
+			ibu, err = ibu.WithSeedImage(MGMTConfig.SeedImage).
+				WithSeedImageVersion(MGMTConfig.SeedClusterInfo.SeedClusterOCPVersion).Update()
+			Expect(err).NotTo(HaveOccurred(), "error updating ibu with image and version")
+		})
+
+		AfterEach(func() {
+			By("Pull the imagebasedupgrade from the cluster")
+			ibu, err = lca.PullImageBasedUpgrade(APIClient)
+			Expect(err).NotTo(HaveOccurred(), "error pulling imagebasedupgrade resource")
+
+			if ibu.Object.Spec.Stage != "Idle" {
+				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")
+
+		})
+	})