test: use pytest.raises

I learned a new thing about pytest today
lidatong · Jun 20, 2023 · b3d2bef · b3d2bef
1 parent 108391f
commit b3d2bef
Showing 1 changed file with 1 addition and 7 deletions.
diff --git a/tests/test_nested.py b/tests/test_nested.py
@@ -27,14 +27,8 @@ def test_nested_list_of_dataclasses(self):
                 DataClassXs([DataClassX(0), DataClassX(1)]))
 
     def test_nested_mapping_of_dataclasses(self):
-        err = None
-        try:
+        with pytest.raises(TypeError, match="positional arguments"):
             DataClassMappingBadDecode.from_dict(dict(map=dict(test=dict(id="irrelevant"))))
-        except TypeError as e:
-            if "positional arguments" not in e.args[0]:
-                raise
-            err = e
-        assert isinstance(err, TypeError)
 
 
 class TestNested: