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('.', 'r')
except IOError as e:
self.assertNotEqual(e.errno, 0)
self.assertEqual(e.filename, ".")
else:
self.fail("Should have raised IOError")
def testErrors(self):
f = self.f
self.assertTrue(not f.isatty())
self.assertTrue(not f.closed)
#self.assertEqual(f.name, TESTFN)
self.assertRaises(ValueError, f.read, 10) # Open for writing
f.close()
self.assertTrue(f.closed)
f = self.f = _FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assertTrue(not f.closed)
f.close()
self.assertTrue(f.closed)
# These methods all accept a call with 0 arguments
methods = ['fileno', 'isatty', 'read',
'tell', 'truncate', 'seekable',
'readable', 'writable']
if sys.platform.startswith('atheos'):
methods.remove('truncate')
self.f.close()
self.assertTrue(self.f.closed)
for methodname in methods:
method = getattr(self.f, methodname)
# should raise on closed file
self.assertRaises(ValueError, method)
# These other methods should be tested using a specific call
# in case the test for number of arguments comes first.
b = bytearray()
self.assertRaises(ValueError, self.f.readinto, b )
self.assertRaises(ValueError, self.f.seek, 0)
self.assertRaises(ValueError, self.f.write, b )
def testWritelinesUserList(self):
l = UserList([b"123", b"456"])
self.f.writelines(l)
self.f.close()
self.f = _FileIO(TESTFN, "rb")
buf = self.f.read()
self.assertEqual(buf, b"123456")
def testWritelinesUserList(self):
l = UserList([b'123', b'456'])
self.f.writelines(l)
self.f.close()
self.f = _FileIO(TESTFN, 'rb')
buf = self.f.read()
self.assertEqual(buf, b'123456')
def testReadinto(self):
# verify readinto
self.f.write(b"\x01\x02")
self.f.close()
a = array(b"b", b"x" * 10)
self.f = _FileIO(TESTFN, "r")
n = self.f.readinto(a)
self.assertEqual(array(b"b", [1, 2]), a[:n])
def ReopenForRead(self):
try:
self.f.close()
except IOError:
pass
self.f = _FileIO(TESTFN, 'r')
os.close(self.f.fileno())
return self.f
def testReadinto(self):
# verify readinto
self.f.write(b"\x01\x02")
self.f.close()
a = array(b'b', b'x'*10)
self.f = _FileIO(TESTFN, 'r')
n = self.f.readinto(a)
self.assertEqual(array(b'b', [1, 2]), a[:n])
def testAbles(self):
f = self.f = _FileIO(TESTFN, "w")
self.assertEqual(f.readable(), False)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
f.close()
f = self.f = _FileIO(TESTFN, "r")
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), False)
self.assertEqual(f.seekable(), True)
f.close()
f = self.f = _FileIO(TESTFN, "a+")
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
self.assertEqual(f.isatty(), False)
f.close()
# Jython specific issues:
# On OSX, FileIO("/dev/tty", "w").isatty() is False
# On Ubuntu, FileIO("/dev/tty", "w").isatty() throws IOError: Illegal seek
#
# Much like we see on other platforms, we cannot reliably
# determine it is not seekable (or special).
#
# Related bug: http://bugs.jython.org/issue1945
if sys.platform != "win32" and not is_jython:
try:
f = self.f = _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:
self.assertEqual(f.readable(), False)
self.assertEqual(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.assertEqual(f.seekable(), False)
self.assertEqual(f.isatty(), True)
def test_none_args(self):
self.f.write(b"hi\nbye\nabc")
self.f.close()
self.f = _FileIO(TESTFN, 'r')
self.assertEqual(self.f.read(None), b"hi\nbye\nabc")
self.f.seek(0)
self.assertEqual(self.f.readline(None), b"hi\n")
self.assertEqual(self.f.readlines(None), [b"bye\n", b"abc"])
def testModeStrings(self):
# check invalid mode strings
for mode in ("", "aU", "wU+", "rw", "rt"):
try:
f = self.f = _FileIO(TESTFN, mode)
except ValueError:
pass
else:
self.fail('%r is an invalid file mode' % mode)
def testReprNoCloseFD(self):
fd = os.open(TESTFN, os.O_RDONLY)
try:
with _FileIO(fd, 'r', closefd=False) as f:
self.assertEqual(repr(f),
"<_io.FileIO name=%r mode=%r closefd=False>"
% (f.name, f.mode))
finally:
os.close(fd)
def testTruncate(self):
f = _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(TESTFN, "w")
self.assertEquals(f.readable(), False)
self.assertEquals(f.writable(), True)
self.assertEquals(f.seekable(), True)
f.close()
f = _FileIO(TESTFN, "r")
self.assertEquals(f.readable(), True)
self.assertEquals(f.writable(), False)
self.assertEquals(f.seekable(), True)
f.close()
f = _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("/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("/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 testTruncate(self):
f = self.f = _FileIO(TESTFN, 'w')
f.write(bytes(bytearray(list(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)
#XXX: next assert not working in Jython:
#self.assertEqual(f.seek(0, os.SEEK_END), 15)
f.close()
def testErrors(self):
f = self.f
self.assertTrue(not f.isatty())
self.assertTrue(not f.closed)
#self.assertEqual(f.name, TESTFN)
self.assertRaises(ValueError, f.read, 10) # Open for reading
f.close()
self.assertTrue(f.closed)
f = _FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assertTrue(not f.closed)
f.close()
self.assertTrue(f.closed)
def testAbles(self):
try:
f = _FileIO(TESTFN, "w")
self.assertEqual(f.readable(), False)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
f.close()
f = _FileIO(TESTFN, "r")
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), False)
self.assertEqual(f.seekable(), True)
f.close()
f = _FileIO(TESTFN, "a+")
self.assertEqual(f.readable(), True)
self.assertEqual(f.writable(), True)
self.assertEqual(f.seekable(), True)
self.assertEqual(f.isatty(), False)
f.close()
finally:
os.unlink(TESTFN)
def bug801631():
# SF bug <http://www.python.org/sf/801631>
# "file.truncate fault on windows"
f = _FileIO(TESTFN, 'w')
f.write(bytes(range(11)))
f.close()
f = _FileIO(TESTFN,'r+')
data = f.read(5)
if data != bytes(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 testBytesOpen(self):
# Opening a bytes filename
try:
fn = TESTFN.encode("ascii")
except UnicodeEncodeError:
# Skip test
return
f = self.f = _FileIO(fn, "w")
f.write(b"abc")
f.close()
with open(TESTFN, "rb") as f:
self.f = f
self.assertEqual(f.read(), b"abc")
def testModeStrings(self):
# test that the mode attribute is correct for various mode strings
# given as init args
try:
for modes in [('w', 'wb'), ('wb', 'wb'), ('wb+', 'rb+'),
('w+b', 'rb+'), ('a', 'ab'), ('ab', 'ab'),
('ab+', 'ab+'), ('a+b', 'ab+'), ('r', 'rb'),
('rb', 'rb'), ('rb+', 'rb+'), ('r+b', 'rb+')]:
# read modes are last so that TESTFN will exist first
with _FileIO(TESTFN, modes[0]) as f:
self.assertEqual(f.mode, modes[1])
finally:
if os.path.exists(TESTFN):
os.unlink(TESTFN)
def testBytesOpen(self):
# Opening a bytes filename
try:
fn = TESTFN.encode("ascii")
except UnicodeEncodeError:
self.skipTest('could not encode %r to ascii' % TESTFN)
f = _FileIO(fn, "w")
try:
f.write(b"abc")
f.close()
with open(TESTFN, "rb") as f:
self.assertEqual(f.read(), b"abc")
finally:
os.unlink(TESTFN)
def testBadModeArgument(self):
# verify that we get a sensible error message for bad mode argument
bad_mode = "qwerty"
try:
f = _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 testAblesOnTTY(self):
try:
f = _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.
self.skipTest('need /dev/tty')
else:
self.assertEqual(f.readable(), False)
self.assertEqual(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.assertEqual(f.seekable(), False)
self.assertEqual(f.isatty(), True)
f.close()
def test_surrogates(self):
# Issue #8438: try to open a filename containing surrogates.
# It should either fail because the file doesn't exist or the filename
# can't be represented using the filesystem encoding, but not because
# of a LookupError for the error handler "surrogateescape".
filename = u'\udc80.txt'
try:
with _FileIO(filename):
pass
except (UnicodeEncodeError, IOError):
pass
# Spawn a separate Python process with a different "file system
# default encoding", to exercise this further.
env = dict(os.environ)
env[b'LC_CTYPE'] = b'C'
_, out = run_python('-c', 'import _io; _io.FileIO(%r)' % filename, env=env)
if ('UnicodeEncodeError' not in out and
'IOError: [Errno 2] No such file or directory' not in out):
self.fail('Bad output: %r' % out)
def test_surrogates(self):
# Issue #8438: try to open a filename containing surrogates.
# It should either fail because the file doesn't exist or the filename
# can't be represented using the filesystem encoding, but not because
# of a LookupError for the error handler "surrogateescape".
filename = u'\udc80.txt'
try:
with _FileIO(filename):
pass
except (UnicodeEncodeError, IOError):
pass
# Spawn a separate Python process with a different "file system
# default encoding", to exercise this further.
env = dict(os.environ)
env[b'LC_CTYPE'] = b'C'
_, out = run_python('-c', 'import _io; _io.FileIO(%r)' % filename, env=env)
if ('UnicodeEncodeError' not in out and
'IOError: [Errno 2] No such file or directory' not in out):
self.fail('Bad output: %r' % out)
def test_surrogates(self):
# Issue #8438: try to open a filename containing surrogates.
# It should either fail because the file doesn't exist or the filename
# can't be represented using the filesystem encoding, but not because
# of a LookupError for the error handler "surrogateescape".
filename = "\udc80.txt"
try:
with _FileIO(filename):
pass
except (UnicodeEncodeError, IOError):
pass
# Spawn a separate Python process with a different "file system
# default encoding", to exercise this further.
env = dict(os.environ)
env[b"LC_CTYPE"] = b"C"
_, out = run_python("-c", "import _io; _io.FileIO(%r)" % filename, env=env)
if "UnicodeEncodeError" not in out and not (
("IOError: [Errno 2] No such file or directory" in out) or ("IOError: [Errno 22] Invalid argument" in out)
):
self.fail("Bad output: %r" % out)
def testErrors(self):
f = self.f
self.assertTrue(not f.isatty())
self.assertTrue(not f.closed)
#self.assertEqual(f.name, TESTFN)
self.assertRaises(ValueError, f.read, 10) # Open for writing
f.close()
self.assertTrue(f.closed)
f = self.f = _FileIO(TESTFN, 'r')
self.assertRaises(TypeError, f.readinto, "")
self.assertTrue(not f.closed)
f.close()
self.assertTrue(f.closed)
# These methods all accept a call with 0 arguments
methods = [
'fileno', 'isatty', 'read', 'tell', 'truncate', 'seekable',
'readable', 'writable'
]
if sys.platform.startswith('atheos'):
methods.remove('truncate')
self.f.close()
self.assertTrue(self.f.closed)
for methodname in methods:
method = getattr(self.f, methodname)
# should raise on closed file
self.assertRaises(ValueError, method)
# These other methods should be tested using a specific call
# in case the test for number of arguments comes first.
b = bytearray()
self.assertRaises(ValueError, self.f.readinto, b)
self.assertRaises(ValueError, self.f.seek, 0)
self.assertRaises(ValueError, self.f.write, b)
def testUnicodeOpen(self):
# verify repr works for unicode too
f = self.f = _FileIO(str(TESTFN), "w")
def testOpenDirFD(self):
fd = os.open('.', os.O_RDONLY)
with self.assertRaises(IOError) as cm:
_FileIO(fd, 'r')
os.close(fd)
self.assertEqual(cm.exception.errno, errno.EISDIR)
def testUnicodeOpen(self):
# verify repr works for unicode too
f = self.f = _FileIO(str(TESTFN), "w")
def testUnicodeOpen(self):
# verify repr works for unicode too
f = _FileIO(str(TESTFN), "w")
f.close()
os.unlink(TESTFN)
def setUp(self):
self.f = _FileIO(TESTFN, 'w')
def testUnicodeOpen(self):
# verify repr works for unicode too
f = _FileIO(str(TESTFN), "w")
f.close()
os.unlink(TESTFN)
def setUp(self):
self.f = _FileIO(TESTFN, 'w')
def testOpenDirFD(self):
fd = os.open('.', os.O_RDONLY)
with self.assertRaises(IOError) as cm:
_FileIO(fd, 'r')
os.close(fd)
self.assertEqual(cm.exception.errno, errno.EISDIR)