WIP: Remove get_all_entities() function

tests/test_error_stuff.py

@@ -176,9 +176,9 @@ def test_entity_does_not_exist():
     te = te.value
     assert te.has_error(EntityDoesNotExistError)
     # Only non-existing entities caused the container error
-    assert not pe.name in [x.name for x in te.get_all_entities()]
+    assert not pe.name in [x.name for x in te.all_entities]
     for p in (p1, p2, p3):
-        assert p.name in [x.name for x in te.get_all_entities()]
+        assert p.name in [x.name for x in te.all_entities]
 
 
 def test_insert_existent_entity():
@@ -226,7 +226,7 @@ def test_insert_existent_entity():
     assert une.entity is not None
     assert pe.name == une.entity.name
     for p in (p1, p2, p3):
-        assert not p in te.get_all_entities()
+        assert p not in te.all_entities
 
 
 def test_double_insertion():