Add bson clone

struct_test.go

@@ -1,6 +1,7 @@
 package commons
 
 import (
+  "fmt"
   "testing"
 )
 
@@ -307,4 +308,31 @@ func TestMapMerge(t *testing.T) {
   if len(m) != 4 {
     t.Fatalf("Merged map should have lenght 4 not %d", len(m))
   }
+}
+
+func TestBsonClone(t *testing.T) {
+  orig := map[string]any{
+    "name": "Kolias",
+    "age": int32(56),
+    "salary": int64(100000000),
+    "meta": map[string]any{
+      "num1": int32(110),
+    },
+  }
+
+  clone := BsonClone(orig)
+
+  if "int32" != fmt.Sprintf("%T", clone["age"]) {
+    t.Fatalf("int32 should map to int32")
+  }
+
+  if "int64" != fmt.Sprintf("%T", clone["salary"]) {
+    t.Fatalf("int64 should map to int64")
+  }
+
+  meta := clone["meta"].(map[string]any)
+
+  if "int32" != fmt.Sprintf("%T", meta["num1"]) {
+    t.Fatalf("netsted type should have been int32")
+  }
 }