test: unit tests for utils.go file in lib package (#1012)

Signed-off-by: tarun8718 <[email protected]>

lib/utils_test.go

@@ -0,0 +1,103 @@
+/*
+ *  Copyright IBM Corporation 2023
+ *
+ *  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 lib
+
+import (
+	"errors"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/konveyor/move2kube/common"
+)
+
+func TestLibUtils(t *testing.T) {
+
+	t.Run("test for copying customizations assets data", func(t *testing.T) {
+		tmpDir, err := ioutil.TempDir("", "tempBaseDir")
+		if err != nil {
+			t.Fatalf("failed to create temp dir: %v", err)
+		}
+		defer os.RemoveAll(tmpDir)
+		customizationsPath := filepath.Join(tmpDir, "customizations")
+		err = os.Mkdir(customizationsPath, 0755)
+		if err != nil {
+			t.Fatalf("failed to create customizations dir: %v", err)
+		}
+
+		err = CopyCustomizationsAssetsData("")
+		if err != nil {
+			t.Errorf("failed to check and copy customizations. Error : %v", err)
+		}
+
+		err = CopyCustomizationsAssetsData("invalid")
+		if !errors.Is(err, os.ErrNotExist) {
+			t.Errorf("Expected error %v, but got: %v", os.ErrNotExist, err)
+		}
+
+		err = CopyCustomizationsAssetsData(customizationsPath)
+		if err != nil {
+			t.Errorf("failed to check and copy customizations. Error : %v", err)
+		}
+		assetsPath, err := filepath.Abs(common.AssetsPath)
+		if err != nil {
+			t.Errorf("failed to make the assets path '%s' absolute. Error: %v", assetsPath, err)
+		}
+		customizationsAssetsPath := filepath.Join(assetsPath, "custom")
+		if _, err := os.Stat(customizationsAssetsPath); os.IsNotExist(err) {
+			t.Errorf("failed as customizations assets directory does not exist. Error : %v", err)
+		}
+	})
+
+	t.Run("test for check and copy customizations", func(t *testing.T) {
+		tmpDir, err := ioutil.TempDir("", "tempBaseDir")
+		if err != nil {
+			t.Fatalf("failed to create temp dir: %v", err)
+		}
+		defer os.RemoveAll(tmpDir)
+		customizationsPath := filepath.Join(tmpDir, "customizations")
+		err = os.Mkdir(customizationsPath, 0755)
+		if err != nil {
+			t.Fatalf("failed to create customizations dir: %v", err)
+		}
+
+		err = CheckAndCopyCustomizations("")
+		if err != nil {
+			t.Errorf("failed to check and copy customizations. Error : %v", err)
+		}
+
+		err = CheckAndCopyCustomizations("invalid")
+		if !errors.Is(err, os.ErrNotExist) {
+			t.Errorf("Expected error %v, but got: %v", os.ErrNotExist, err)
+		}
+
+		err = CheckAndCopyCustomizations(customizationsPath)
+		if err != nil {
+			t.Errorf("failed to check and copy customizations. Error : %v", err)
+		}
+		assetsPath, err := filepath.Abs(common.AssetsPath)
+		if err != nil {
+			t.Errorf("failed to make the assets path '%s' absolute. Error: %v", assetsPath, err)
+		}
+		customizationsAssetsPath := filepath.Join(assetsPath, "custom")
+		if _, err := os.Stat(customizationsAssetsPath); os.IsNotExist(err) {
+			t.Errorf("failed as customizations assets directory does not exist. Error : %v", err)
+		}
+	})
+
+}