src/cpl_query/_extension/iterable.py

@@ -2,6 +2,7 @@ from typing import Optional, Callable
 
 from cpl_query._extension.ordered_iterable import OrderedIterable
 from cpl_query.extension.ordered_iterable_abc import OrderedIterableABC
+from .._query.all_query import all_query
 from .._query.any_query import any_query
 from .._query.first_query import first_or_default_query, first_query
 from .._query.for_each_query import for_each_query
@@ -19,6 +20,9 @@ class Iterable(IterableABC):
     def any(self, func: Callable) -> bool:
         return any_query(self, func)
 
+    def all(self, func: Callable) -> bool:
+        return all_query(self, func)
+
     def first(self) -> any:
         return first_query(self)
 

src/cpl_query/_query/all_query.py

@@ -0,0 +1,9 @@
+from collections import Callable
+
+from cpl_query._query.where_query import where_query
+from cpl_query.extension.iterable_abc import IterableABC
+
+
+def all_query(_list: IterableABC, _func: Callable) -> bool:
+    result = where_query(_list, _func)
+    return len(result) == len(_list)

src/cpl_query/_query/where_query.py

@@ -6,12 +6,7 @@ from cpl_query.extension.iterable_abc import IterableABC
 def where_query(_list: IterableABC, _func: Callable) -> IterableABC:
     result = IterableABC()
     for element in _list:
-        element_type = type(element).__name__
         if _func(element):
             result.append(element)
-        # if element_type in _func:
-            # func = _func.replace(element_type, 'element')
-            # if eval(func):
-            #     result.append(element)
 
     return result

src/cpl_query/extension/iterable_abc.py

@@ -11,6 +11,9 @@ class IterableABC(ABC, list):
     @abstractmethod
     def any(self, func: Callable) -> bool: pass
 
+    @abstractmethod
+    def all(self, func: Callable) -> bool: pass
+
     @abstractmethod
     def first(self) -> any: pass
 

src/cpl_query/tests/query_test.py

@@ -47,6 +47,18 @@ class QueryTest(unittest.TestCase):
         self.assertTrue(res)
         self.assertFalse(n_res)
 
+    def test_all(self):
+        results = []
+        for user in self._tests:
+            if user.address.nr == 10:
+                results.append(user)
+
+        res = self._tests.all(lambda u: u.address is not None)
+        n_res = self._tests.all(lambda u: u.address.nr == 100)
+
+        self.assertTrue(res)
+        self.assertFalse(n_res)
+
     def test_first(self):
         results = []
         for user in self._tests: