test: create integration with mongodb at nullable scenario

Signed-off-by: Otavio Santana <otaviopolianasantana@gmail.com>

jnosql-mongodb/src/test/java/org/eclipse/jnosql/databases/mongodb/integration/MongoDBTemplateIntegrationTest.java

@@ -16,6 +16,7 @@
 
 
 import jakarta.inject.Inject;
+import org.assertj.core.api.SoftAssertions;
 import org.eclipse.jnosql.databases.mongodb.communication.MongoDBDocumentConfigurations;
 import org.eclipse.jnosql.databases.mongodb.mapping.MongoDBTemplate;
 import org.eclipse.jnosql.mapping.Convert;
@@ -122,5 +123,20 @@ void shouldDeleteAll(){
         assertThat(template.select(Book.class).result()).isEmpty();
     }
 
+    @Test
+    void shouldUpdateNullValues(){
+        var book = new Book(randomUUID().toString(), "Effective Java", 1);
+        template.insert(book);
+        template.update(new Book(book.id(), null, 2));
+        Optional<Book> optional = template.select(Book.class).where("id")
+                .eq(book.id()).singleResult();
+        SoftAssertions.assertSoftly(softly -> {
+            softly.assertThat(optional).isPresent();
+            softly.assertThat(optional).get().extracting(Book::title).isNull();
+            softly.assertThat(optional).get().extracting(Book::edition).isEqualTo(2);
+        });
+    }
+
+
 
 }