Drop tests for older versions

We don't support not having the shadow index cache.
Remove that test case.

Bump the "restricted redpanda version" test to lie
within the new version range.

Author: jan-g

operator/internal/controller/vectorized/test/cluster_controller_test.go

@@ -838,9 +838,9 @@ var _ = Describe("RedPandaCluster controller", func() {
 	})
 
 	Context("Calling reconcile with restricted version", func() {
-		const allowedVersion = "v23.1.1"
+		const allowedVersion = "v23.2.1"
 		It("Should throw error due to restricted redpanda version", func() {
-			restrictedVersion := "v23.1.2"
+			restrictedVersion := "v23.2.2"
 			key, redpandaCluster := getVersionedRedpanda("restricted-redpanda-negative", restrictedVersion)
 			fc := fake.NewClientBuilder().WithObjects(redpandaCluster).WithStatusSubresource(redpandaCluster).Build()
 			r := &vectorized.ClusterReconciler{

operator/pkg/resources/configuration/configuration_test.go

@@ -22,10 +22,9 @@ import (
 )
 
 func TestConfigMode(t *testing.T) {
-	config := configuration.For("v22.1.1-test")
+	// Older values aren't supported
+	config := configuration.For("v23.2.1-test")
 	assert.Equal(t, config.Mode, configuration.DefaultCentralizedMode())
-	config = configuration.For("v21.1.1-test")
-	assert.Equal(t, config.Mode, configuration.GlobalConfigurationModeClassic)
 }
 
 func TestRedpandaProperties(t *testing.T) {

operator/pkg/resources/statefulset_test.go

@@ -99,12 +99,6 @@ func TestEnsure(t *testing.T) {
 	}
 	noSidecarSts := stsFromCluster(noSidecarCluster)
 
-	withoutShadowIndexCacheDirectory := cluster.DeepCopy()
-	withoutShadowIndexCacheDirectory.Spec.Version = "v21.10.1"
-	stsWithoutSecondPersistentVolume := stsFromCluster(withoutShadowIndexCacheDirectory)
-	// Remove shadow-indexing-cache from the volume claim templates
-	stsWithoutSecondPersistentVolume.Spec.VolumeClaimTemplates = stsWithoutSecondPersistentVolume.Spec.VolumeClaimTemplates[:1]
-
 	unhealthyRedpandaCluster := cluster.DeepCopy()
 
 	tests := []struct {
@@ -121,7 +115,6 @@ func TestEnsure(t *testing.T) {
 		{"update resources", stsResource, resourcesUpdatedCluster, resourcesUpdatedSts, true, nil, "first"},
 		{"update redpanda resources", stsResource, resourcesUpdatedRedpandaCluster, resourcesUpdatedSts, true, nil, "first"},
 		{"disabled sidecar", nil, noSidecarCluster, noSidecarSts, true, nil, "first"},
-		{"cluster without shadow index cache dir", stsResource, withoutShadowIndexCacheDirectory, stsWithoutSecondPersistentVolume, true, nil, "first"},
 		{"update non healthy cluster", stsResource, unhealthyRedpandaCluster, stsResource, false, &resources.RequeueAfterError{
 			RequeueAfter: resources.RequeueDuration,
 			Msg:          "wait for cluster to become healthy (cluster restarting)",