test: create null id scenario

Signed-off-by: Otavio Santana <[email protected]>

Author: otaviojava

jnosql-mongodb/src/test/java/org/eclipse/jnosql/databases/mongodb/communication/MongoDBDocumentManagerTest.java

@@ -79,6 +79,15 @@ void shouldInsert() {
         assertTrue(documentEntity.elements().stream().map(Element::name).anyMatch(s -> s.equals("_id")));
     }
 
+    @Test
+    void shouldInsertAndIgnoreIdNull() {
+        var entity = getEntity();
+        entity.add("_id", null);
+        var documentEntity = entityManager.insert(entity);
+        Element id = documentEntity.find("_id").orElseThrow();
+        entityManager.delete(DeleteQuery.delete().from(COLLECTION_NAME).where("_id").eq(id.get()).build());
+    }
+
     @Test
     void shouldThrowExceptionWhenInsertWithTTL() {
         var entity = getEntity();