withcommas = ", ".join(reprpairs)
return "{%s}" % withcommas
+def make_bad_fd():
+ """
+ Create an invalid file descriptor by opening and closing a file and return
+ its fd.
+ """
+ file = open(TESTFN, "wb")
+ try:
+ return file.fileno()
+ finally:
+ file.close()
+ unlink(TESTFN)
+
def check_syntax_error(testcase, statement):
try:
compile(statement, '<test string>', 'exec')
from array import array
from weakref import proxy
-from test.support import TESTFN, findfile, check_warnings, run_unittest
+from test.support import (TESTFN, findfile, check_warnings, run_unittest,
+ make_bad_fd)
from collections import UserList
import _fileio
def testInvalidFd(self):
self.assertRaises(ValueError, _fileio._FileIO, -10)
- self.assertRaises(OSError, _fileio._FileIO, 10)
+ self.assertRaises(OSError, _fileio._FileIO, make_bad_fd())
def testBadModeArgument(self):
# verify that we get a sensible error message for bad mode argument