add package name validation function

Signed-off-by: Per Goncalves da Silva <[email protected]>

Author: Per Goncalves da Silva

internal/operator-controller/rukpak/convert/validator.go

@@ -25,6 +25,7 @@ var RegistryV1BundleValidator = BundleValidator{
 	CheckDeploymentSpecUniqueness,
 	CheckCRDResourceUniqueness,
 	CheckOwnedCRDExistence,
+	CheckPackageNameNotEmpty,
 }
 
 // CheckDeploymentSpecUniqueness checks that each strategy deployment spec in the csv has a unique name.
@@ -39,8 +40,7 @@ func CheckDeploymentSpecUniqueness(rv1 *RegistryV1) []error {
 		deploymentNameSet.Insert(dep.Name)
 	}
 
-	//nolint:prealloc
-	var errs []error
+	errs := make([]error, 0, len(duplicateDeploymentNames))
 	for _, d := range slices.Sorted(slices.Values(duplicateDeploymentNames.UnsortedList())) {
 		errs = append(errs, fmt.Errorf("cluster service version contains duplicate strategy deployment spec '%s'", d))
 	}
@@ -54,15 +54,14 @@ func CheckOwnedCRDExistence(rv1 *RegistryV1) []error {
 		crdsNames.Insert(crd.Name)
 	}
 
-	//nolint:prealloc
-	var errs []error
 	missingCRDNames := sets.Set[string]{}
 	for _, crd := range rv1.CSV.Spec.CustomResourceDefinitions.Owned {
 		if !crdsNames.Has(crd.Name) {
 			missingCRDNames.Insert(crd.Name)
 		}
 	}
 
+	errs := make([]error, 0, len(missingCRDNames))
 	for _, crdName := range slices.Sorted(slices.Values(missingCRDNames.UnsortedList())) {
 		errs = append(errs, fmt.Errorf("cluster service definition references owned custom resource definition '%s' not found in bundle", crdName))
 	}
@@ -80,10 +79,17 @@ func CheckCRDResourceUniqueness(rv1 *RegistryV1) []error {
 		crdsNames.Insert(crd.Name)
 	}
 
-	//nolint:prealloc
-	var errs []error
+	errs := make([]error, 0, len(duplicateCRDNames))
 	for _, crdName := range slices.Sorted(slices.Values(duplicateCRDNames.UnsortedList())) {
 		errs = append(errs, fmt.Errorf("bundle contains duplicate custom resource definition '%s'", crdName))
 	}
 	return errs
 }
+
+// CheckPackageNameNotEmpty checks that PackageName is not empty
+func CheckPackageNameNotEmpty(rv1 *RegistryV1) []error {
+	if rv1.PackageName == "" {
+		return []error{errors.New("package name is empty")}
+	}
+	return nil
+}

internal/operator-controller/rukpak/convert/validator_test.go

@@ -19,6 +19,7 @@ func Test_BundleValidatorHasAllValidationFns(t *testing.T) {
 		convert.CheckDeploymentSpecUniqueness,
 		convert.CheckCRDResourceUniqueness,
 		convert.CheckOwnedCRDExistence,
+		convert.CheckPackageNameNotEmpty,
 	}
 	actualValidationFns := convert.RegistryV1BundleValidator
 
@@ -60,6 +61,7 @@ func Test_CheckDeploymentSpecUniqueness(t *testing.T) {
 					),
 				),
 			},
+			expectedErrs: []error{},
 		}, {
 			name: "rejects bundles with duplicate deployment strategy spec names",
 			bundle: &convert.RegistryV1{
@@ -114,6 +116,7 @@ func Test_CRDResourceUniqueness(t *testing.T) {
 					{ObjectMeta: metav1.ObjectMeta{Name: "b.crd.something"}},
 				},
 			},
+			expectedErrs: []error{},
 		}, {
 			name: "rejects bundles with duplicate custom resource definition resources",
 			bundle: &convert.RegistryV1{CRDs: []apiextensionsv1.CustomResourceDefinition{
@@ -164,6 +167,7 @@ func Test_CheckOwnedCRDExistence(t *testing.T) {
 					),
 				),
 			},
+			expectedErrs: []error{},
 		}, {
 			name: "rejects bundles with missing owned custom resource definition resources",
 			bundle: &convert.RegistryV1{
@@ -200,3 +204,29 @@ func Test_CheckOwnedCRDExistence(t *testing.T) {
 		})
 	}
 }
+
+func Test_CheckPackageNameNotEmpty(t *testing.T) {
+	for _, tc := range []struct {
+		name         string
+		bundle       *convert.RegistryV1
+		expectedErrs []error
+	}{
+		{
+			name: "accepts bundles with non-empty package name",
+			bundle: &convert.RegistryV1{
+				PackageName: "not-empty",
+			},
+		}, {
+			name:   "rejects bundles with empty package name",
+			bundle: &convert.RegistryV1{},
+			expectedErrs: []error{
+				errors.New("package name is empty"),
+			},
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			errs := convert.CheckPackageNameNotEmpty(tc.bundle)
+			require.Equal(t, tc.expectedErrs, errs)
+		})
+	}
+}