[3.14] gh-133982: Update test_bufio to use self.open (gh-133983) (gh-134428)

(cherry picked from commit 84d5f8d799)

Co-authored-by: Cody Maloney <cmaloney@users.noreply.github.com>
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Miss Islington (bot) 2025-05-21 17:13:13 +02:00 committed by GitHub
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@ -28,7 +28,7 @@ class BufferSizeTest:
f.write(b"\n") f.write(b"\n")
f.write(s) f.write(s)
f.close() f.close()
f = open(os_helper.TESTFN, "rb") f = self.open(os_helper.TESTFN, "rb")
line = f.readline() line = f.readline()
self.assertEqual(line, s + b"\n") self.assertEqual(line, s + b"\n")
line = f.readline() line = f.readline()