def testOpendir(self):
# Issue 3703: opening a directory should fill the errno
# Windows always returns "[Errno 13]: Permission denied
# Unix calls dircheck() and returns "[Errno 21]: Is a directory"
try:
_fileio._FileIO('.', 'r')
except IOError as e:
self.assertNotEqual(e.errno, 0)
else:
self.fail("Should have raised IOError")
def testOpendir(self):
# Issue 3703: opening a directory should fill the errno
# Windows always returns "[Errno 13]: Permission denied
# Unix calls dircheck() and returns "[Errno 21]: Is a directory"
try:
_fileio._FileIO('.', 'r')
except IOError as e:
self.assertNotEqual(e.errno, 0)
else:
self.fail("Should have raised IOError")
def fileio_helper():
bytes_io_list = bytesio_helper()
file_io_list = []
for i in xrange(len(bytes_io_list)):
f = _fileio._FileIO(TEMP_READINTO_NAME % i, "w")
f.write(bytes_io_list[i])
f.close()
file_io_list.append(_fileio._FileIO(TEMP_READINTO_NAME % i, "r"))
return file_io_list
def testReadinto(self):
# verify readinto
self.f.write(bytes(bytearray([1, 2])))
self.f.close()
a = array('b', b'x' * 10)
self.f = _fileio._FileIO(TESTFN, 'r')
n = self.f.readinto(a)
self.assertEquals(array('b', [1, 2]), a[:n])
def testReadinto(self):
# verify readinto
self.f.write(bytes(bytearray([1, 2])))
self.f.close()
a = array('b', b'x'*10)
self.f = _fileio._FileIO(TESTFN, 'r')
n = self.f.readinto(a)
self.assertEquals(array('b', [1, 2]), a[:n])
def testModeStrings(self):
# check invalid mode strings
for mode in ("", "aU", "wU+", "rb", "rt"):
try:
f = _fileio._FileIO(TESTFN, mode)
except ValueError:
pass
else:
f.close()
self.fail('%r is an invalid file mode' % mode)
def testTruncate(self):
f = _fileio._FileIO(TESTFN, 'w')
f.write(bytes(bytearray(range(10))))
self.assertEqual(f.tell(), 10)
f.truncate(5)
self.assertEqual(f.tell(), 10)
self.assertEqual(f.seek(0, os.SEEK_END), 5)
f.truncate(15)
self.assertEqual(f.tell(), 5)
self.assertEqual(f.seek(0, os.SEEK_END), 15)
def testModeStrings(self):
# check invalid mode strings
for mode in ("", "aU", "wU+", "rw", "rt"):
try:
f = _fileio._FileIO(TESTFN, mode)
except ValueError:
pass
else:
f.close()
self.fail('%r is an invalid file mode' % mode)
def testTruncate(self):
f = _fileio._FileIO(TESTFN, 'w')
f.write(bytes(bytearray(range(10))))
self.assertEqual(f.tell(), 10)
f.truncate(5)
self.assertEqual(f.tell(), 10)
self.assertEqual(f.seek(0, os.SEEK_END), 5)
f.truncate(15)
self.assertEqual(f.tell(), 5)
self.assertEqual(f.seek(0, os.SEEK_END), 15)
def testAbles(self):
try:
f = _fileio._FileIO(TESTFN, "w")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
f.close()
f = _fileio._FileIO(TESTFN, "r")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), False)
self.assertEquals(f.seekable(), True)
f.close()
f = _fileio._FileIO(TESTFN, "a+")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
self.assertEquals(f.isatty(), False)
f.close()
if sys.platform != "win32":
try:
f = _fileio._FileIO("/dev/tty", "a")
except EnvironmentError:
# When run in a cron job there just aren't any
# ttys, so skip the test. This also handles other
# OS'es that don't support /dev/tty.
pass
else:
f = _fileio._FileIO("/dev/tty", "a")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
if sys.platform != "darwin" and \
not sys.platform.startswith('freebsd') and \
not sys.platform.startswith('sunos'):
# Somehow /dev/tty appears seekable on some BSDs
self.assertEquals(f.seekable(), False)
self.assertEquals(f.isatty(), True)
f.close()
finally:
os.unlink(TESTFN)
def testAbles(self):
try:
f = _fileio._FileIO(TESTFN, "w")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
f.close()
f = _fileio._FileIO(TESTFN, "r")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), False)
self.assertEquals(f.seekable(), True)
f.close()
f = _fileio._FileIO(TESTFN, "a+")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
self.assertEquals(f.isatty(), False)
f.close()
if sys.platform != "win32":
try:
f = _fileio._FileIO("/dev/tty", "a")
except EnvironmentError:
# When run in a cron job there just aren't any
# ttys, so skip the test. This also handles other
# OS'es that don't support /dev/tty.
pass
else:
f = _fileio._FileIO("/dev/tty", "a")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
if sys.platform != "darwin" and \
'bsd' not in sys.platform and \
not sys.platform.startswith('sunos'):
# Somehow /dev/tty appears seekable on some BSDs
self.assertEquals(f.seekable(), False)
self.assertEquals(f.isatty(), True)
f.close()
finally:
os.unlink(TESTFN)
def testErrors(self):
f = self.f
self.assert_(not f.isatty())
self.assert_(not f.closed)
#self.assertEquals(f.name, TESTFN)
self.assertRaises(ValueError, f.read, 10) # Open for reading
f.close()
self.assert_(f.closed)
f = _fileio._FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assert_(not f.closed)
f.close()
self.assert_(f.closed)
def bug801631():
# SF bug <http://www.python.org/sf/801631>
# "file.truncate fault on windows"
f = _fileio._FileIO(TESTFN, 'w')
f.write(bytes(bytearray(range(11))))
f.close()
f = _fileio._FileIO(TESTFN, 'r+')
data = f.read(5)
if data != bytes(bytearray(range(5))):
self.fail("Read on file opened for update failed %r" % data)
if f.tell() != 5:
self.fail("File pos after read wrong %d" % f.tell())
f.truncate()
if f.tell() != 5:
self.fail("File pos after ftruncate wrong %d" % f.tell())
f.close()
size = os.path.getsize(TESTFN)
if size != 5:
self.fail("File size after ftruncate wrong %d" % size)
def testErrors(self):
f = self.f
self.assert_(not f.isatty())
self.assert_(not f.closed)
#self.assertEquals(f.name, TESTFN)
self.assertRaises(ValueError, f.read, 10) # Open for reading
f.close()
self.assert_(f.closed)
f = _fileio._FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assert_(not f.closed)
f.close()
self.assert_(f.closed)
def bug801631():
# SF bug <http://www.python.org/sf/801631>
# "file.truncate fault on windows"
f = _fileio._FileIO(TESTFN, 'w')
f.write(bytes(bytearray(range(11))))
f.close()
f = _fileio._FileIO(TESTFN,'r+')
data = f.read(5)
if data != bytes(bytearray(range(5))):
self.fail("Read on file opened for update failed %r" % data)
if f.tell() != 5:
self.fail("File pos after read wrong %d" % f.tell())
f.truncate()
if f.tell() != 5:
self.fail("File pos after ftruncate wrong %d" % f.tell())
f.close()
size = os.path.getsize(TESTFN)
if size != 5:
self.fail("File size after ftruncate wrong %d" % size)
def testBadModeArgument(self):
# verify that we get a sensible error message for bad mode argument
bad_mode = "qwerty"
try:
f = _fileio._FileIO(TESTFN, bad_mode)
except ValueError as msg:
if msg.args[0] != 0:
s = str(msg)
if TESTFN in s or bad_mode not in s:
self.fail("bad error message for invalid mode: %s" % s)
# if msg.args[0] == 0, we're probably on Windows where there may be
# no obvious way to discover why open() failed.
else:
f.close()
self.fail("no error for invalid mode: %s" % bad_mode)
def testBadModeArgument(self):
# verify that we get a sensible error message for bad mode argument
bad_mode = "qwerty"
try:
f = _fileio._FileIO(TESTFN, bad_mode)
except ValueError as msg:
if msg.args[0] != 0:
s = str(msg)
if s.find(TESTFN) != -1 or s.find(bad_mode) == -1:
self.fail("bad error message for invalid mode: %s" % s)
# if msg.args[0] == 0, we're probably on Windows where there may be
# no obvious way to discover why open() failed.
else:
f.close()
self.fail("no error for invalid mode: %s" % bad_mode)
def setUp(self):
self.f = _fileio._FileIO(TESTFN, 'w')
def testUnicodeOpen(self):
# verify repr works for unicode too
f = _fileio._FileIO(str(TESTFN), "w")
f.close()
os.unlink(TESTFN)
def setUp(self):
self.f = _fileio._FileIO(TESTFN, 'w')
def testUnicodeOpen(self):
# verify repr works for unicode too
f = _fileio._FileIO(str(TESTFN), "w")
f.close()
os.unlink(TESTFN)
