mirror of https://github.com/python/cpython
256 lines
8.2 KiB
Python
256 lines
8.2 KiB
Python
# Adapted from test_file.py by Daniel Stutzbach
|
|
#from __future__ import unicode_literals
|
|
|
|
import sys
|
|
import os
|
|
import unittest
|
|
from array import array
|
|
from weakref import proxy
|
|
|
|
from test.test_support import TESTFN, findfile, run_unittest
|
|
from UserList import UserList
|
|
|
|
import _fileio
|
|
|
|
class AutoFileTests(unittest.TestCase):
|
|
# file tests for which a test file is automatically set up
|
|
|
|
def setUp(self):
|
|
self.f = _fileio._FileIO(TESTFN, 'w')
|
|
|
|
def tearDown(self):
|
|
if self.f:
|
|
self.f.close()
|
|
os.remove(TESTFN)
|
|
|
|
def testWeakRefs(self):
|
|
# verify weak references
|
|
p = proxy(self.f)
|
|
p.write(bytes(range(10)))
|
|
self.assertEquals(self.f.tell(), p.tell())
|
|
self.f.close()
|
|
self.f = None
|
|
self.assertRaises(ReferenceError, getattr, p, 'tell')
|
|
|
|
def testSeekTell(self):
|
|
self.f.write(bytes(bytearray(range(20))))
|
|
self.assertEquals(self.f.tell(), 20)
|
|
self.f.seek(0)
|
|
self.assertEquals(self.f.tell(), 0)
|
|
self.f.seek(10)
|
|
self.assertEquals(self.f.tell(), 10)
|
|
self.f.seek(5, 1)
|
|
self.assertEquals(self.f.tell(), 15)
|
|
self.f.seek(-5, 1)
|
|
self.assertEquals(self.f.tell(), 10)
|
|
self.f.seek(-5, 2)
|
|
self.assertEquals(self.f.tell(), 15)
|
|
|
|
def testAttributes(self):
|
|
# verify expected attributes exist
|
|
f = self.f
|
|
|
|
self.assertEquals(f.mode, "w")
|
|
self.assertEquals(f.closed, False)
|
|
|
|
# verify the attributes are readonly
|
|
for attr in 'mode', 'closed':
|
|
self.assertRaises((AttributeError, TypeError),
|
|
setattr, f, attr, 'oops')
|
|
|
|
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 testRepr(self):
|
|
self.assertEquals(repr(self.f),
|
|
"_fileio._FileIO(%d, %s)" % (self.f.fileno(),
|
|
repr(self.f.mode)))
|
|
|
|
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 testMethods(self):
|
|
methods = ['fileno', 'isatty', 'read', 'readinto',
|
|
'seek', 'tell', 'truncate', 'write', 'seekable',
|
|
'readable', 'writable']
|
|
if sys.platform.startswith('atheos'):
|
|
methods.remove('truncate')
|
|
|
|
self.f.close()
|
|
self.assert_(self.f.closed)
|
|
|
|
for methodname in methods:
|
|
method = getattr(self.f, methodname)
|
|
# should raise on closed file
|
|
self.assertRaises(ValueError, method)
|
|
|
|
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")
|
|
|
|
|
|
class OtherFileTests(unittest.TestCase):
|
|
|
|
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 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 testUnicodeOpen(self):
|
|
# verify repr works for unicode too
|
|
f = _fileio._FileIO(str(TESTFN), "w")
|
|
f.close()
|
|
os.unlink(TESTFN)
|
|
|
|
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 testTruncateOnWindows(self):
|
|
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)
|
|
|
|
try:
|
|
bug801631()
|
|
finally:
|
|
os.unlink(TESTFN)
|
|
|
|
def testAppend(self):
|
|
try:
|
|
f = open(TESTFN, 'wb')
|
|
f.write(b'spam')
|
|
f.close()
|
|
f = open(TESTFN, 'ab')
|
|
f.write(b'eggs')
|
|
f.close()
|
|
f = open(TESTFN, 'rb')
|
|
d = f.read()
|
|
f.close()
|
|
self.assertEqual(d, b'spameggs')
|
|
finally:
|
|
try:
|
|
os.unlink(TESTFN)
|
|
except:
|
|
pass
|
|
|
|
def testInvalidInit(self):
|
|
self.assertRaises(TypeError, _fileio._FileIO, "1", 0, 0)
|
|
|
|
|
|
def test_main():
|
|
# Historically, these tests have been sloppy about removing TESTFN.
|
|
# So get rid of it no matter what.
|
|
try:
|
|
run_unittest(AutoFileTests, OtherFileTests)
|
|
finally:
|
|
if os.path.exists(TESTFN):
|
|
os.unlink(TESTFN)
|
|
|
|
if __name__ == '__main__':
|
|
test_main()
|