Reorganize tests.

Author: serhiy-storchaka

Lib/test/test_ucn.py

@@ -88,6 +88,9 @@ def test_hangul_syllables(self):
         self.checkletter("HANGUL SYLLABLE HWEOK", "\ud6f8")
         self.checkletter("HANGUL SYLLABLE HIH", "\ud7a3")
 
+        self.checkletter("haNGul SYllABle WAe", '\uc65c')
+        self.checkletter("HAngUL syLLabLE waE", '\uc65c')
+
         self.assertRaises(ValueError, unicodedata.name, "\ud7a4")
 
     def test_cjk_unified_ideographs(self):
@@ -103,6 +106,11 @@ def test_cjk_unified_ideographs(self):
         self.checkletter("CJK UNIFIED IDEOGRAPH-2B81D", "\U0002B81D")
         self.checkletter("CJK UNIFIED IDEOGRAPH-3134A", "\U0003134A")
 
+        self.checkletter("cjK UniFIeD idEogRAph-3aBc", "\u3abc")
+        self.checkletter("CJk uNIfiEd IDeOGraPH-3AbC", "\u3abc")
+        self.checkletter("cjK UniFIeD idEogRAph-2aBcD", "\U0002abcd")
+        self.checkletter("CJk uNIfiEd IDeOGraPH-2AbCd", "\U0002abcd")
+
     def test_bmp_characters(self):
         for code in range(0x10000):
             char = chr(code)
@@ -240,11 +248,6 @@ def test_issue16335(self, size):
             x.decode, 'unicode-escape'
         )
 
-    def test_issue80667(self):
-        self.assertEqual(str(b'\\N{cjK UniFIeD idEogRAph-732B}', "unicode-escape"), '猫')
-        self.assertEqual(str(b'\\N{cjK UniFIeD idEogRAph-732b}', "unicode-escape"), '猫')
-        self.assertEqual(str(b'\\N{haNGul SYllABle WAe}', "unicode-escape"), '왜')
-
 
 if __name__ == "__main__":
     unittest.main()