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bpo-45566:test_frozen_pickle checks allpickle protocols (pythonGH-29150)

Refspython#29147Automerge-Triggered-By: GH:ericvsmith

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Lines changed: 17 additions & 4 deletions

Original file line number	Diff line number	Diff line change
`@@ -2859,13 +2859,26 @@ class FrozenSlotsClass:`
`2859`	`2859`	`foo:str`
`2860`	`2860`	`bar:int`
`2861`	`2861`
	`2862`	`+@dataclass(frozen=True)`
	`2863`	`+classFrozenWithoutSlotsClass:`
	`2864`	`+foo:str`
	`2865`	`+bar:int`
	`2866`	`+`
`2862`	`2867`	`deftest_frozen_pickle(self):`
`2863`	`2868`	`# bpo-43999`
`2864`	`2869`
`2865`		`-assertself.FrozenSlotsClass.__slots__== ("foo","bar")`
`2866`		`-p=pickle.dumps(self.FrozenSlotsClass("a",1))`
`2867`		`-assertpickle.loads(p)==self.FrozenSlotsClass("a",1)`
`2868`		`-`
	`2870`	`+self.assertEqual(self.FrozenSlotsClass.__slots__, ("foo","bar"))`
	`2871`	`+forprotoinrange(pickle.HIGHEST_PROTOCOL+1):`
	`2872`	`+withself.subTest(proto=proto):`
	`2873`	`+obj=self.FrozenSlotsClass("a",1)`
	`2874`	`+p=pickle.loads(pickle.dumps(obj,protocol=proto))`
	`2875`	`+self.assertIsNot(obj,p)`
	`2876`	`+self.assertEqual(obj,p)`
	`2877`	`+`
	`2878`	`+obj=self.FrozenWithoutSlotsClass("a",1)`
	`2879`	`+p=pickle.loads(pickle.dumps(obj,protocol=proto))`
	`2880`	`+self.assertIsNot(obj,p)`
	`2881`	`+self.assertEqual(obj,p)`
`2869`	`2882`
`2870`	`2883`	`classTestDescriptors(unittest.TestCase):`
`2871`	`2884`	`deftest_set_name(self):`

Lines changed: 1 addition & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+Fix ``test_frozen_pickle`` in ``test_dataclasses`` to check all ``pickle`` versions.

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