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222
tree = self.make_branch_and_tree('.', format='2a')
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tree.update_feature_flags({"name": "necessity"})
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found_format = workingtree.WorkingTreeFormatMetaDir.find_format(
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self.assertIsInstance(found_format, workingtree.WorkingTreeFormat)
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self.assertEqual(found_format.features.get("name"), "necessity")
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self.assertRaises(errors.MissingFeature, found_format.check_support_status,