test: add count query test for MongoDBDocumentManager

Implemented a test to verify the count of entities
returned by a select query after performing a delete
operation, ensuring accurate counting functionality.

Signed-off-by: Maximillian Arruda <[email protected]>

Author: dearrudam

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

@@ -553,6 +553,22 @@ void shouldCount() {
         assertTrue(entityManager.count(COLLECTION_NAME) > 0);
     }
 
+    @Test
+    void shouldCountBySelectQuery() {
+        DeleteQuery deleteQuery = delete().from(COLLECTION_NAME).where("type").eq("V").build();
+        entityManager.delete(deleteQuery);
+        Iterable<CommunicationEntity> entitiesSaved = entityManager.insert(getEntitiesWithValues());
+        List<CommunicationEntity> entities = StreamSupport.stream(entitiesSaved.spliterator(), false).toList();
+
+        var query = select().from(COLLECTION_NAME)
+                .where("age").gte(23)
+                .and("type").eq("V")
+                .build();
+
+        assertThat(entityManager.count(query))
+                .isEqualTo(2);
+    }
+
     @Test
     void shouldCustomTypeWork() {
         var entity = getEntity();