commit 27258e9723293178143922d6a503ff6885c3b6a1
Author: Rémi Lapeyre <remi.lapeyre@henki.fr>
Date:   Thu Jan 3 01:17:48 2019 +0100

    Add tests for dataclasses members normalization

diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py
index cdb9bf23ed..64ee5610d7 100644
--- a/Lib/dataclasses.py
+++ b/Lib/dataclasses.py
@@ -1120,9 +1120,9 @@ def make_dataclass(cls_name, fields, *, bases=(), namespace=None, init=True,
 
         if not isinstance(name, str) or not name.isidentifier():
             raise TypeError(f'Field names must be valid identifers: {name!r}')
-        if keyword.iskeyword(name):
-            raise TypeError(f'Field names must not be keywords: {name!r}')
         normalized_name = unicodedata.normalize('NFKC', name)
+        if keyword.iskeyword(normalized_name):
+            raise TypeError(f'Field names must not be keywords: {normalized_name!r}')
         if normalized_name in seen:
             raise TypeError(f'Field name duplicated: {normalized_name!r}')
 
diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py
index d9556c7ff9..cb81de80da 100755
--- a/Lib/test/test_dataclasses.py
+++ b/Lib/test/test_dataclasses.py
@@ -2918,6 +2918,15 @@ class TestMakeDataclass(unittest.TestCase):
                 C = make_dataclass(classname, ['a', 'b'])
                 self.assertEqual(C.__name__, classname)
 
+    def test_normalize_members(self):
+        with self.assertRaisesRegexp(TypeError, "Field name duplicated: 'μ'"):
+            make_dataclass('a', ['\u00b5', '\u03bc'])
+
+    def test_normalized_keywords(self):
+        with self.assertRaisesRegexp(TypeError,
+                "Field names must not be keywords: 'assert'"):
+            make_dataclass('a', ['𝚊ssert'])
+
 class TestReplace(unittest.TestCase):
     def test(self):
         @dataclass(frozen=True)