public void TestQueryable() { var someGenericClass = new SomeGenericClass("veryGenericKey", "veryGenericValue"); someGenericClass.Id = ObjectId.Parse("5c9a0d8afe28b239e7da280d"); MongoDbHandler.InsertRecordToDb(someGenericClass); var queryable = MongoDbHandler.GetQueryable <CaseReport>().Where(x => x.Id == ObjectId.Parse("5c9a0d8afe28b239e7da280d")).ToList();; Assert.AreEqual(queryable.Count, 1); }