24         self.f = self.FileIO(TESTFN, 'w')
81         with self.FileIO(TESTFN, 'r') as f:
91         with self.FileIO(TESTFN, 'r') as f:
97         with self.FileIO(TESTFN, 'r') as f:
107         with self.FileIO(TESTFN, 'r') as f:
113         with self.FileIO(TESTFN, 'r') as f:
119         with self.FileIO(TESTFN, 'r') as f:
128         self.f = self.FileIO(TESTFN, 'rb')
136         self.f = self.FileIO(TESTFN, 'rb')
148         self.f = self.FileIO(TESTFN, 'r')
172             with self.FileIO(fd, 'r', closefd=False) as f:
193         f = self.FileIO(TESTFN, 'r')
226             self.FileIO('.', 'r')
237             self.FileIO(fd, 'r')
322         self.f = self.FileIO(TESTFN, 'r')
343     FileIO = _io.FileIO  variable in CAutoFileTests
347     FileIO = _pyio.FileIO  variable in PyAutoFileTests
355             f = self.FileIO(TESTFN, "w")
361             f = self.FileIO(TESTFN, "r")
367             f = self.FileIO(TESTFN, "a+")
376                     f = self.FileIO("/dev/tty", "a")
399                 f = self.FileIO(TESTFN, mode)
415                 with self.FileIO(TESTFN, modes[0]) as f:
423         f = self.FileIO(str(TESTFN), "w")
433         f = self.FileIO(fn, "w")
450         f = self.FileIO(fn, "w")
461         self.assertRaises(ValueError, self.FileIO, fn_with_NUL, 'w')
462         self.assertRaises(ValueError, self.FileIO, bytes(fn_with_NUL, 'ascii'), 'w')
465         self.assertRaises(ValueError, self.FileIO, -10)
466         self.assertRaises(OSError, self.FileIO, make_bad_fd())
475             f = self.FileIO(TESTFN, bad_mode)
488         f = self.FileIO(TESTFN, 'w')
503             f = self.FileIO(TESTFN, 'w')
507             f = self.FileIO(TESTFN,'r+')
547         self.assertRaises(TypeError, self.FileIO, "1", 0, 0)
552             self.assertRaises(TypeError, self.FileIO, [])
554             self.assertRaises(ValueError, self.FileIO, "/some/invalid/name", "rt")
559         class MyFileIO(self.FileIO):
570     FileIO = _io.FileIO  variable in COtherFileTests
577         self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MAX + 1)
578         self.assertRaises(TypeError, self.FileIO, _testcapi.INT_MIN - 1)
583         with self.FileIO(__file__, "rb") as f:
591     FileIO = _pyio.FileIO  variable in PyOtherFileTests
597         with self.FileIO(__file__, "rb") as f: