Added reverse query

src/cpl_query/_extension/iterable.py

@@ -13,6 +13,7 @@ from .._query.first_last import first_or_default_query, first_query, last_or_def
 from .._query.for_each import for_each_query
 from .._query.max_min import max_query, min_query
 from .._query.order_by import order_by_query, order_by_descending_query
+from .._query.reverse import reverse_query
 from .._query.single import single_query, single_or_default_query
 from .._query.where import where_query
 from cpl_query.extension.iterable_abc import IterableABC
@@ -80,6 +81,9 @@ class Iterable(IterableABC):
         res.__class__ = OrderedIterable
         return res
 
+    def reverse(self) -> IterableABC:
+        return reverse_query(self)
+
     def single(self) -> any:
         return single_query(self)
 
@@ -90,6 +94,3 @@ class Iterable(IterableABC):
         res = where_query(self, func)
         res.__class__ = Iterable
         return res
-
-    def to_list(self) -> list:
-        return list(self)

src/cpl_query/_query/reverse.py

@@ -0,0 +1,15 @@
+from cpl_query.exceptions import ArgumentNoneException, ExceptionArgument
+from cpl_query.extension.iterable_abc import IterableABC
+
+
+def reverse_query(_list: IterableABC) -> IterableABC:
+    if _list is None:
+        raise ArgumentNoneException(ExceptionArgument.list)
+
+    result = IterableABC()
+    _copied_list = _list.to_list()
+    _copied_list.reverse()
+    for element in _copied_list:
+        result.append(element)
+
+    return result

src/cpl_query/extension/iterable_abc.py

@@ -80,9 +80,15 @@ class IterableABC(ABC, list):
     @abstractmethod
     def order_by_descending(self, func: Callable) -> 'IterableABC': pass
 
+    @abstractmethod
+    def reverse(self) -> 'IterableABC': pass
+
     @abstractmethod
     def single(self) -> any: pass
 
+    def to_list(self) -> list:
+        return list(self)
+
     @abstractmethod
     def single_or_default(self) -> Optional[any]: pass
 

src/cpl_query/tests/query_test.py

@@ -228,6 +228,13 @@ class QueryTest(unittest.TestCase):
 
         self.assertEqual(res, s_res)
 
+    def test_reverse(self):
+        res = self._tests.reverse()
+        l_res = self._tests.to_list()
+        l_res.reverse()
+
+        self.assertEqual(l_res, res)
+
     def test_single(self):
         res = self._tests.where(lambda u: u.address.nr == self._t_user.address.nr)
         s_res = self._tests.where(lambda u: u.address.nr == self._t_user.address.nr).single()