test: add tests for mergeDeletionCallBack

filesystem/merger_test.go

@@ -0,0 +1,50 @@
+/*
+ *  Copyright IBM Corporation 2021
+ *
+ *  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 filesystem
+
+import (
+	"os"
+	"testing"
+)
+
+func TestMergeDeletionCallBack(t *testing.T) {
+	t.Run(" test for scenario when function is called with a non-existent source file and an existing destination directory", func(t *testing.T) {
+		source := "/move2kube/nonexistent/source"
+		destination := "/move2kube/destination"
+		config := interface{}(nil)
+
+		// Call the merge function
+		err := mergeDeletionCallBack(source, destination, config)
+
+		// Assert that the error is not nil (as the source file does not exist)
+		if err == nil {
+			t.Fatalf("Expected non-nil error, but got nil")
+		}
+
+		// Check if the error is due to the source file not existing
+		if !os.IsNotExist(err) {
+			t.Fatalf("Expected source file to not exist, but got error: %v", err)
+		}
+
+
+		_, destErr := os.Stat(destination)
+		if !os.IsNotExist(destErr) {
+			t.Error("Expected destination directory not to exist, but it exists")
+		}
+
+
+	})
+}