add unittest for load_opts.go

Signed-off-by: yxxhero <aiopsclub@163.com>

pkg/app/load_opts_test.go

@@ -0,0 +1,23 @@
+package app
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TestLoadOptsDeepCopy tests the DeepCopy function for LoadOpts struct.
+func TestLoadOptsDeepCopy(t *testing.T) {
+	lOld := LoadOpts{
+		Selectors:         []string{"test"},
+		RetainValuesFiles: true,
+		CalleePath:        "test",
+		Reverse:           true,
+		Filter:            true,
+	}
+	lNew := lOld.DeepCopy()
+
+	// Check that the new struct is not the same as the old one.
+	require.Equal(t, lOld, lNew, "DeepCopy should return a copy of the LoadOpts struct")
+
+}