pkg/utils: Test ImageReferenceCanBeID

containers#825

src/pkg/utils/utils_test.go

@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2021 Red Hat Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package utils
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestImageReferenceCanBeID(t *testing.T) {
+	testCases := []struct {
+		name string
+		ref  string
+		ok   bool
+	}{
+		{
+			name: "Valid ID (random 6 chars)",
+			ref:  "34afbc",
+			ok:   true,
+		},
+		{
+			name: "Valid ID (random 64 chars)",
+			ref:  "8215cb84fa588215cb84fa588215cb84fa588215cb84fa588215cb84fa58fbca",
+			ok:   true,
+		},
+		{
+			name: "Valid ID (Podman short)",
+			ref:  "8215cb84fa58",
+			ok:   true,
+		},
+		{
+			name: "Valid ID (Podman long)",
+			ref:  "8b9affd1dbc261a7f586ed06a8fd993d09449a5ac79ebc7e80e86efdf3c223f6",
+			ok:   true,
+		},
+		{
+			name: "Invalid ID (random <6 chars)",
+			ref:  "acbdf",
+			ok:   false,
+		},
+		{
+			name: "Invalid ID (random >64 chars)",
+			ref:  "8215cb84fa588215cb84fa588215cb84fa588215cb84fa588215cb84fa58fbcab",
+			ok:   false,
+		},
+		{
+			name: "Invalid ID (image URI; whole alphabet + slash)",
+			ref:  "fedoraproject.org/fedora-toolbox:32",
+			ok:   false,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			ok := ImageReferenceCanBeID(tc.ref)
+			assert.Equal(t, tc.ok, ok)
+		})
+	}
+}