`test_enum` has duplicate test cases: function vs class based enum definitions

[sobolevn]

Bug report

cpython/Lib/test/test_enum.py

Lines 1034 to 1047 in 5e7ea95

	class TestPlainEnumClass(_EnumTests, _PlainOutputTests, unittest.TestCase):
	enum_type = Enum
	class TestPlainEnumFunction(_EnumTests, _PlainOutputTests, unittest.TestCase):
	enum_type = Enum
	class TestPlainFlagClass(_EnumTests, _PlainOutputTests, _FlagTests, unittest.TestCase):
	enum_type = Flag
	class TestPlainFlagFunction(_EnumTests, _PlainOutputTests, _FlagTests, unittest.TestCase):
	enum_type = Flag

Looks like some cases here are just duplicates: because in some cases Function and Class tests have different enum_type definitions:

cpython/Lib/test/test_enum.py

Lines 1104 to 1109 in 5e7ea95

	class TestMixedIntClass(_EnumTests, _MixedOutputTests, unittest.TestCase):
	class enum_type(int, Enum): pass
	class TestMixedIntFunction(_EnumTests, _MixedOutputTests, unittest.TestCase):
	enum_type = Enum('enum_type', type=int)

But, some have identical. I propose to delete cases where enum_type is a duplicate.
I have a PR ready.

It was introduced in #108704
CC @ethanfurman

Linked PRs

• gh-109774: Remove duplicated tests from test_enum #109775

[ethanfurman]

Those duplicates are intentional -- the functional creation tests excercise different code than the class creation tests.