Fix test_types_repository_separation test

Previous test was faulty as it relied on being call before any other
test initiated ODataV2.Types.

Author: mamiksik

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Fixed
 - make sure configured error policies are applied for Annotations referencing
   unknown type/member - Martin Miksik
+- Race condition in `test_types_repository_separation` - Martin Miksik
 
 ## [1.3.0]
 

tests/test_model.py

@@ -63,6 +63,7 @@ def primitive_types() -> List[Typ]:
 
 
 def test_types_repository_separation():
+    ODataV2.Types = dict()
 
     class TestODATA(ODATAVersion):
         @staticmethod
@@ -74,11 +75,12 @@ def primitive_types() -> List['Typ']:
     config_test = Config(TestODATA)
     config_v2 = Config(ODataV2)
 
-    assert TestODATA.Types is None
+    assert not TestODATA.Types
     assert TestODATA.Types == ODataV2.Types
 
     # Build type repository by initial call
     Types.from_name('PrimitiveType', config_test)
     Types.from_name('Edm.Int16', config_v2)
 
+    assert ODataV2.Types
     assert TestODATA.Types != ODataV2.Types