def tearDown(self):
for db in self._db:
db.close()
self._db = []
if not self._in_mem:
for f in glob.glob(self.fn+"*"):
support.unlink(f)
def test_rewrite_pyc_with_read_only_source(self):
# Issue 6074: a long time ago on posix, and more recently on Windows,
# a read only source file resulted in a read only pyc file, which
# led to problems with updating it later
sys.path.insert(0, os.curdir)
fname = TESTFN + os.extsep + "py"
try:
# Write a Python file, make it read-only and import it
with open(fname, 'w') as f:
f.write("x = 'original'\n")
# Tweak the mtime of the source to ensure pyc gets updated later
s = os.stat(fname)
os.utime(fname, (s.st_atime, s.st_mtime-100000000))
os.chmod(fname, 0o400)
m1 = __import__(TESTFN)
self.assertEqual(m1.x, 'original')
# Change the file and then reimport it
os.chmod(fname, 0o600)
with open(fname, 'w') as f:
f.write("x = 'rewritten'\n")
unload(TESTFN)
m2 = __import__(TESTFN)
self.assertEqual(m2.x, 'rewritten')
# Now delete the source file and check the pyc was rewritten
unlink(fname)
unload(TESTFN)
m3 = __import__(TESTFN)
self.assertEqual(m3.x, 'rewritten')
finally:
chmod_files(TESTFN)
remove_files(TESTFN)
unload(TESTFN)
del sys.path[0]
def test_realpath_basic(self):
# Basic operation.
try:
os.symlink(ABSTFN+"1", ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN+"1")
finally:
support.unlink(ABSTFN)
def test_execfile(self):
globals = {'a': 1, 'b': 2}
locals = {'b': 200, 'c': 300}
class M:
"Test mapping interface versus possible calls from execfile()."
def __init__(self):
self.z = 10
def __getitem__(self, key):
if key == 'z':
return self.z
raise KeyError
def __setitem__(self, key, value):
if key == 'z':
self.z = value
return
raise KeyError
locals = M()
locals['z'] = 0
exec(compile(open(TESTFN).read(), TESTFN, 'exec'), globals, locals)
self.assertEqual(locals['z'], 2)
self.assertRaises(TypeError, execfile)
self.assertRaises(TypeError, execfile, TESTFN, {}, ())
unlink(TESTFN)
def test_realpath_resolve_before_normalizing(self):
# Bug #990669: Symbolic links should be resolved before we
# normalize the path. E.g.: if we have directories 'a', 'k' and 'y'
# in the following hierarchy:
# a/k/y
#
# and a symbolic link 'link-y' pointing to 'y' in directory 'a',
# then realpath("link-y/..") should return 'k', not 'a'.
try:
os.mkdir(ABSTFN)
os.mkdir(ABSTFN + "/k")
os.mkdir(ABSTFN + "/k/y")
os.symlink(ABSTFN + "/k/y", ABSTFN + "/link-y")
# Absolute path.
self.assertEqual(realpath(ABSTFN + "/link-y/.."), ABSTFN + "/k")
# Relative path.
with support.change_cwd(dirname(ABSTFN)):
self.assertEqual(realpath(basename(ABSTFN) + "/link-y/.."),
ABSTFN + "/k")
finally:
support.unlink(ABSTFN + "/link-y")
safe_rmdir(ABSTFN + "/k/y")
safe_rmdir(ABSTFN + "/k")
safe_rmdir(ABSTFN)
def test_encode(self):
fin = fout = None
try:
support.unlink(self.tmpin)
fin = open(self.tmpin, 'wb')
fin.write(plaintext)
fin.close()
fin = open(self.tmpin, 'rb')
fout = open(self.tmpout, 'wb')
uu.encode(fin, fout, self.tmpin, mode=0o644)
fin.close()
fout.close()
fout = open(self.tmpout, 'rb')
s = fout.read()
fout.close()
self.assertEqual(s, encodedtextwrapped(0o644, self.tmpin))
# in_file and out_file as filenames
uu.encode(self.tmpin, self.tmpout, self.tmpin, mode=0o644)
fout = open(self.tmpout, 'rb')
s = fout.read()
fout.close()
self.assertEqual(s, encodedtextwrapped(0o644, self.tmpin))
finally:
self._kill(fin)
self._kill(fout)
def try_one(self, s):
# Write s + "\n" + s to file, then open it and ensure that successive
# .readline()s deliver what we wrote.
# Ensure we can open TESTFN for writing.
support.unlink(support.TESTFN)
# Since C doesn't guarantee we can write/read arbitrary bytes in text
# files, use binary mode.
f = self.open(support.TESTFN, "wb")
try:
# write once with \n and once without
f.write(s)
f.write(b"\n")
f.write(s)
f.close()
f = open(support.TESTFN, "rb")
line = f.readline()
self.assertEqual(line, s + b"\n")
line = f.readline()
self.assertEqual(line, s)
line = f.readline()
self.assertTrue(not line) # Must be at EOF
f.close()
finally:
support.unlink(support.TESTFN)
def test_builtin_map(self):
self.assertEqual(list(map(lambda x: x+1, SequenceClass(5))),
list(range(1, 6)))
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(list(map(lambda k, d=d: (k, d[k]), d)),
list(d.items()))
dkeys = list(d.keys())
expected = [(i < len(d) and dkeys[i] or None,
i,
i < len(d) and dkeys[i] or None)
for i in range(3)]
f = open(TESTFN, "w")
try:
for i in range(10):
f.write("xy" * i + "\n") # line i has len 2*i+1
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(list(map(len, f)), list(range(1, 21, 2)))
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def test_countOf(self):
from operator import countOf
self.assertEqual(countOf([1,2,2,3,2,5], 2), 3)
self.assertEqual(countOf((1,2,2,3,2,5), 2), 3)
self.assertEqual(countOf("122325", "2"), 3)
self.assertEqual(countOf("122325", "6"), 0)
self.assertRaises(TypeError, countOf, 42, 1)
self.assertRaises(TypeError, countOf, countOf, countOf)
d = {"one": 3, "two": 3, "three": 3, 1j: 2j}
for k in d:
self.assertEqual(countOf(d, k), 1)
self.assertEqual(countOf(d.values(), 3), 3)
self.assertEqual(countOf(d.values(), 2j), 1)
self.assertEqual(countOf(d.values(), 1j), 0)
f = open(TESTFN, "w")
try:
f.write("a\n" "b\n" "c\n" "b\n")
finally:
f.close()
f = open(TESTFN, "r")
try:
for letter, count in ("a", 1), ("b", 2), ("c", 1), ("d", 0):
f.seek(0, 0)
self.assertEqual(countOf(f, letter + "\n"), count)
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def test_builtin_tuple(self):
self.assertEqual(tuple(SequenceClass(5)), (0, 1, 2, 3, 4))
self.assertEqual(tuple(SequenceClass(0)), ())
self.assertEqual(tuple([]), ())
self.assertEqual(tuple(()), ())
self.assertEqual(tuple("abc"), ("a", "b", "c"))
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(tuple(d), tuple(d.keys()))
self.assertRaises(TypeError, tuple, list)
self.assertRaises(TypeError, tuple, 42)
f = open(TESTFN, "w")
try:
for i in range(5):
f.write("%d\n" % i)
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(tuple(f), ("0\n", "1\n", "2\n", "3\n", "4\n"))
f.seek(0, 0)
self.assertEqual(tuple(f),
("0\n", "1\n", "2\n", "3\n", "4\n"))
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def test_builtin_max_min(self):
self.assertEqual(max(SequenceClass(5)), 4)
self.assertEqual(min(SequenceClass(5)), 0)
self.assertEqual(max(8, -1), 8)
self.assertEqual(min(8, -1), -1)
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(max(d), "two")
self.assertEqual(min(d), "one")
self.assertEqual(max(d.values()), 3)
self.assertEqual(min(iter(d.values())), 1)
f = open(TESTFN, "w")
try:
f.write("medium line\n")
f.write("xtra large line\n")
f.write("itty-bitty line\n")
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(min(f), "itty-bitty line\n")
f.seek(0, 0)
self.assertEqual(max(f), "xtra large line\n")
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def _test_open(self, do_open_close_reader, do_open_close_writer):
filename = support.TESTFN
# Use a fifo: until the child opens it for reading, the parent will
# block when trying to open it for writing.
support.unlink(filename)
os.mkfifo(filename)
self.addCleanup(support.unlink, filename)
code = '\n'.join((
'import os, time',
'',
'path = %a' % filename,
'sleep_time = %r' % self.sleep_time,
'',
'# let the parent block',
'time.sleep(sleep_time)',
'',
do_open_close_reader,
))
proc = self.subprocess(code)
with kill_on_error(proc):
do_open_close_writer(filename)
self.assertEqual(proc.wait(), 0)
def test_builtin_list(self):
self.assertEqual(list(SequenceClass(5)), list(range(5)))
self.assertEqual(list(SequenceClass(0)), [])
self.assertEqual(list(()), [])
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(list(d), list(d.keys()))
self.assertRaises(TypeError, list, list)
self.assertRaises(TypeError, list, 42)
f = open(TESTFN, "w")
try:
for i in range(5):
f.write("%d\n" % i)
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(list(f), ["0\n", "1\n", "2\n", "3\n", "4\n"])
f.seek(0, 0)
self.assertEqual(list(f),
["0\n", "1\n", "2\n", "3\n", "4\n"])
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def test_implicit_binary_modes(self):
# Test implicit binary modes (no "b" or "t" in mode string).
uncompressed = data1 * 50
with gzip.open(self.filename, "w") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed)
with gzip.open(self.filename, "r") as f:
self.assertEqual(f.read(), uncompressed)
with gzip.open(self.filename, "a") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed * 2)
with self.assertRaises(FileExistsError):
gzip.open(self.filename, "x")
support.unlink(self.filename)
with gzip.open(self.filename, "x") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed)
def _testBogusZipFile(self):
support.unlink(TESTMOD)
fp = open(TESTMOD, 'w+')
fp.write(struct.pack('=I', 0x06054B50))
fp.write('a' * 18)
fp.close()
z = zipimport.zipimporter(TESTMOD)
try:
self.assertRaises(TypeError, z.find_module, None)
self.assertRaises(TypeError, z.load_module, None)
self.assertRaises(TypeError, z.is_package, None)
self.assertRaises(TypeError, z.get_code, None)
self.assertRaises(TypeError, z.get_data, None)
self.assertRaises(TypeError, z.get_source, None)
error = zipimport.ZipImportError
self.assertEqual(z.find_module('abc'), None)
self.assertRaises(error, z.load_module, 'abc')
self.assertRaises(error, z.get_code, 'abc')
self.assertRaises(IOError, z.get_data, 'abc')
self.assertRaises(error, z.get_source, 'abc')
self.assertRaises(error, z.is_package, 'abc')
finally:
zipimport._zip_directory_cache.clear()
def test_mode(self):
self.test_write()
with gzip.GzipFile(self.filename, 'r') as f:
self.assertEqual(f.myfileobj.mode, 'rb')
support.unlink(self.filename)
with gzip.GzipFile(self.filename, 'x') as f:
self.assertEqual(f.myfileobj.mode, 'xb')
def test_binary_modes(self):
uncompressed = data1 * 50
with gzip.open(self.filename, "wb") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed)
with gzip.open(self.filename, "rb") as f:
self.assertEqual(f.read(), uncompressed)
with gzip.open(self.filename, "ab") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed * 2)
with self.assertRaises(FileExistsError):
gzip.open(self.filename, "xb")
support.unlink(self.filename)
with gzip.open(self.filename, "xb") as f:
f.write(uncompressed)
with open(self.filename, "rb") as f:
file_data = gzip.decompress(f.read())
self.assertEqual(file_data, uncompressed)
def test_pyc_always_writable(self):
# Initially read-only .pyc files on Windows used to cause problems
# with later updates, see issue #6074 for details
with _ready_to_import() as (name, path):
# Write a Python file, make it read-only and import it
with open(path, 'w') as f:
f.write("x = 'original'\n")
# Tweak the mtime of the source to ensure pyc gets updated later
s = os.stat(path)
os.utime(path, (s.st_atime, s.st_mtime-100000000))
os.chmod(path, 0o400)
m = __import__(name)
self.assertEqual(m.x, 'original')
# Change the file and then reimport it
os.chmod(path, 0o600)
with open(path, 'w') as f:
f.write("x = 'rewritten'\n")
unload(name)
importlib.invalidate_caches()
m = __import__(name)
self.assertEqual(m.x, 'rewritten')
# Now delete the source file and check the pyc was rewritten
unlink(path)
unload(name)
importlib.invalidate_caches()
bytecode_only = path + "c"
os.rename(importlib.util.cache_from_source(path), bytecode_only)
m = __import__(name)
self.assertEqual(m.x, 'rewritten')
def test_with_extension(ext):
# The extension is normally ".py", perhaps ".pyw".
source = TESTFN + ext
if is_jython:
pyc = TESTFN + "$py.class"
else:
pyc = TESTFN + ".pyc"
with open(source, "w") as f:
print("# This tests Python's ability to import a",
ext, "file.", file=f)
a = random.randrange(1000)
b = random.randrange(1000)
print("a =", a, file=f)
print("b =", b, file=f)
if TESTFN in sys.modules:
del sys.modules[TESTFN]
importlib.invalidate_caches()
try:
try:
mod = __import__(TESTFN)
except ImportError as err:
self.fail("import from %s failed: %s" % (ext, err))
self.assertEqual(mod.a, a,
"module loaded (%s) but contents invalid" % mod)
self.assertEqual(mod.b, b,
"module loaded (%s) but contents invalid" % mod)
finally:
forget(TESTFN)
unlink(source)
unlink(pyc)
def restore_files(self, saved_value):
fn = support.TESTFN
if fn not in saved_value and (fn + '/') not in saved_value:
if os.path.isfile(fn):
support.unlink(fn)
elif os.path.isdir(fn):
support.rmtree(fn)
def remove_files(name):
for f in (name + ".py",
name + ".pyc",
name + ".pyw",
name + "$py.class"):
unlink(f)
rmtree('__pycache__')
def test_input(self):
self.write_testfile()
fp = open(TESTFN, 'r')
savestdin = sys.stdin
savestdout = sys.stdout # Eats the echo
try:
sys.stdin = fp
sys.stdout = BitBucket()
self.assertEqual(input(), "1+1")
self.assertEqual(input(), 'The quick brown fox jumps over the lazy dog.')
self.assertEqual(input('testing\n'), 'Dear John')
# SF 1535165: don't segfault on closed stdin
# sys.stdout must be a regular file for triggering
sys.stdout = savestdout
sys.stdin.close()
self.assertRaises(ValueError, input)
sys.stdout = BitBucket()
sys.stdin = io.StringIO("NULL\0")
self.assertRaises(TypeError, input, 42, 42)
sys.stdin = io.StringIO(" 'whitespace'")
self.assertEqual(input(), " 'whitespace'")
sys.stdin = io.StringIO()
self.assertRaises(EOFError, input)
del sys.stdout
self.assertRaises(RuntimeError, input, 'prompt')
del sys.stdin
self.assertRaises(RuntimeError, input, 'prompt')
finally:
sys.stdin = savestdin
sys.stdout = savestdout
fp.close()
unlink(TESTFN)
def do_test(firstlines, message, charset, lineno):
# Raise the message in a subprocess, and catch the output
try:
output = open(TESTFN, "w", encoding=charset)
output.write("""{0}if 1:
import traceback;
raise RuntimeError('{1}')
""".format(firstlines, message))
output.close()
process = subprocess.Popen([sys.executable, TESTFN],
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
stdout, stderr = process.communicate()
stdout = stdout.decode(output_encoding).splitlines()
finally:
unlink(TESTFN)
# The source lines are encoded with the 'backslashreplace' handler
encoded_message = message.encode(output_encoding,
'backslashreplace')
# and we just decoded them with the output_encoding.
message_ascii = encoded_message.decode(output_encoding)
err_line = "raise RuntimeError('{0}')".format(message_ascii)
err_msg = "RuntimeError: {0}".format(message_ascii)
self.assertIn(("line %s" % lineno), stdout[1],
"Invalid line number: {0!r} instead of {1}".format(
stdout[1], lineno))
self.assertTrue(stdout[2].endswith(err_line),
"Invalid traceback line: {0!r} instead of {1!r}".format(
stdout[2], err_line))
self.assertTrue(stdout[3] == err_msg,
"Invalid error message: {0!r} instead of {1!r}".format(
stdout[3], err_msg))
def test_codingspec(self):
try:
for enc in ALL_CJKENCODINGS:
code = '# coding: {}\n'.format(enc)
exec(code)
finally:
support.unlink(TESTFN)
def test_codingspec(self):
try:
for enc in ALL_CJKENCODINGS:
print('# coding:', enc, file=io.open(TESTFN, 'w'))
exec(open(TESTFN).read())
finally:
support.unlink(TESTFN)
def testThreads(self):
# BufferedWriter should not raise exceptions or crash
# when called from multiple threads.
try:
# We use a real file object because it allows us to
# exercise situations where the GIL is released before
# writing the buffer to the raw streams. This is in addition
# to concurrency issues due to switching threads in the middle
# of Python code.
with io.open(support.TESTFN, "wb", buffering=0) as raw:
bufio = io.BufferedWriter(raw, 8)
errors = []
def f():
try:
# Write enough bytes to flush the buffer
s = b"a" * 19
for i in range(50):
bufio.write(s)
except Exception as e:
errors.append(e)
raise
threads = [threading.Thread(target=f) for x in range(20)]
for t in threads:
t.start()
time.sleep(0.02) # yield
for t in threads:
t.join()
self.assertFalse(errors,
"the following exceptions were caught: %r" % errors)
finally:
support.unlink(support.TESTFN)
def test_builtin_map(self):
self.assertEqual([x+1 for x in SequenceClass(5)], list(range(1, 6)))
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(list(map(lambda k, d=d: (k, d[k]), d)), list(d.items()))
dkeys = list(d.keys())
expected = [(i < len(d) and dkeys[i] or None,
i,
i < len(d) and dkeys[i] or None)
for i in range(5)]
# Deprecated map(None, ...)
with check_py3k_warnings():
self.assertEqual(list(SequenceClass(5)), list(range(5)))
self.assertEqual(list(d), list(d.keys()))
self.assertEqual(map(None, d,
SequenceClass(5),
iter(d.keys())),
expected)
f = open(TESTFN, "w")
try:
for i in range(10):
f.write("xy" * i + "\n") # line i has len 2*i+1
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(list(map(len, f)), list(range(1, 21, 2)))
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
def setUpModule():
try:
import signal
# The default handler for SIGXFSZ is to abort the process.
# By ignoring it, system calls exceeding the file size resource
# limit will raise OSError instead of crashing the interpreter.
signal.signal(signal.SIGXFSZ, signal.SIG_IGN)
except (ImportError, AttributeError):
pass
# On Windows and Mac OSX this test consumes large resources; It
# takes a long time to build the >2 GiB file and takes >2 GiB of disk
# space therefore the resource must be enabled to run this test.
# If not, nothing after this line stanza will be executed.
if sys.platform[:3] == 'win' or sys.platform == 'darwin':
requires('largefile',
'test requires %s bytes and a long time to run' % str(size))
else:
# Only run if the current filesystem supports large files.
# (Skip this test on Windows, since we now always support
# large files.)
f = open(TESTFN, 'wb', buffering=0)
try:
# 2**31 == 2147483648
f.seek(2147483649)
# Seeking is not enough of a test: you must write and flush, too!
f.write(b'x')
f.flush()
except (OSError, OverflowError):
raise unittest.SkipTest("filesystem does not have "
"largefile support")
finally:
f.close()
unlink(TESTFN)
def test_symlink(self):
# On Windows, the EXE needs to know where pythonXY.dll is at so we have
# to add the directory to the path.
env = None
if sys.platform == "win32":
env = {k.upper(): os.environ[k] for k in os.environ}
env["PATH"] = "{};{}".format(
os.path.dirname(sys.executable), env.get("PATH", ""))
# Requires PYTHONHOME as well since we locate stdlib from the
# EXE path and not the DLL path (which should be fixed)
env["PYTHONHOME"] = os.path.dirname(sys.executable)
if sysconfig.is_python_build(True):
env["PYTHONPATH"] = os.path.dirname(os.__file__)
# Issue 7880
def get(python, env=None):
cmd = [python, '-c',
'import sysconfig; print(sysconfig.get_platform())']
p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.PIPE, env=env)
out, err = p.communicate()
if p.returncode:
print((out, err))
self.fail('Non-zero return code {0} (0x{0:08X})'
.format(p.returncode))
return out, err
real = os.path.realpath(sys.executable)
link = os.path.abspath(TESTFN)
os.symlink(real, link)
try:
self.assertEqual(get(real), get(link, env))
finally:
unlink(link)
def test_write_long_to_file(self):
for v in range(marshal.version + 1):
_testcapi.pymarshal_write_long_to_file(0x12345678, support.TESTFN, v)
with open(support.TESTFN, 'rb') as f:
data = f.read()
support.unlink(support.TESTFN)
self.assertEqual(data, b'\x78\x56\x34\x12')
def _clean(self):
forget(TESTFN)
rmtree('__pycache__')
unlink(self.source)
def tearDown(self):
unlink(TESTFN)
def setUp(self):
unlink(TESTFN)
def tearDown(self):
for suffix in ["", "1", "2"]:
support.unlink(support.TESTFN + suffix)
safe_rmdir(support.TESTFN + suffix)
def test_realpath_symlink_loops(self):
# Bug #930024, return the path unchanged if we get into an infinite
# symlink loop.
try:
old_path = abspath('.')
os.symlink(ABSTFN, ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN)
os.symlink(ABSTFN + "1", ABSTFN + "2")
os.symlink(ABSTFN + "2", ABSTFN + "1")
self.assertEqual(realpath(ABSTFN + "1"), ABSTFN + "1")
self.assertEqual(realpath(ABSTFN + "2"), ABSTFN + "2")
self.assertEqual(realpath(ABSTFN + "1/x"), ABSTFN + "1/x")
self.assertEqual(realpath(ABSTFN + "1/.."), dirname(ABSTFN))
self.assertEqual(realpath(ABSTFN + "1/../x"),
dirname(ABSTFN) + "/x")
os.symlink(ABSTFN + "x", ABSTFN + "y")
self.assertEqual(
realpath(ABSTFN + "1/../" + basename(ABSTFN) + "y"),
ABSTFN + "y")
self.assertEqual(
realpath(ABSTFN + "1/../" + basename(ABSTFN) + "1"),
ABSTFN + "1")
os.symlink(basename(ABSTFN) + "a/b", ABSTFN + "a")
self.assertEqual(realpath(ABSTFN + "a"), ABSTFN + "a/b")
os.symlink(
"../" + basename(dirname(ABSTFN)) + "/" + basename(ABSTFN) +
"c", ABSTFN + "c")
self.assertEqual(realpath(ABSTFN + "c"), ABSTFN + "c")
# Test using relative path as well.
os.chdir(dirname(ABSTFN))
self.assertEqual(realpath(basename(ABSTFN)), ABSTFN)
finally:
os.chdir(old_path)
support.unlink(ABSTFN)
support.unlink(ABSTFN + "1")
support.unlink(ABSTFN + "2")
support.unlink(ABSTFN + "y")
support.unlink(ABSTFN + "c")
support.unlink(ABSTFN + "a")
def test_realpath_relative(self):
try:
os.symlink(posixpath.relpath(ABSTFN + "1"), ABSTFN)
self.assertEqual(realpath(ABSTFN), ABSTFN + "1")
finally:
support.unlink(ABSTFN)
def test_issue5604(self):
# Test cannot cover imp.load_compiled function.
# Martin von Loewis note what shared library cannot have non-ascii
# character because init_xxx function cannot be compiled
# and issue never happens for dynamic modules.
# But sources modified to follow generic way for processing pathes.
# the return encoding could be uppercase or None
fs_encoding = sys.getfilesystemencoding()
# covers utf-8 and Windows ANSI code pages
# one non-space symbol from every page
# (http://en.wikipedia.org/wiki/Code_page)
known_locales = {
'utf-8': b'\xc3\xa4',
'cp1250': b'\x8C',
'cp1251': b'\xc0',
'cp1252': b'\xc0',
'cp1253': b'\xc1',
'cp1254': b'\xc0',
'cp1255': b'\xe0',
'cp1256': b'\xe0',
'cp1257': b'\xc0',
'cp1258': b'\xc0',
}
if sys.platform == 'darwin':
self.assertEqual(fs_encoding, 'utf-8')
# Mac OS X uses the Normal Form D decomposition
# http://developer.apple.com/mac/library/qa/qa2001/qa1173.html
special_char = b'a\xcc\x88'
else:
special_char = known_locales.get(fs_encoding)
if not special_char:
self.skipTest(
"can't run this test with %s as filesystem encoding" %
fs_encoding)
decoded_char = special_char.decode(fs_encoding)
temp_mod_name = 'test_imp_helper_' + decoded_char
test_package_name = 'test_imp_helper_package_' + decoded_char
init_file_name = os.path.join(test_package_name, '__init__.py')
try:
# if the curdir is not in sys.path the test fails when run with
# ./python ./Lib/test/regrtest.py test_imp
sys.path.insert(0, os.curdir)
with open(temp_mod_name + '.py', 'w') as file:
file.write('a = 1\n')
file, filename, info = imp.find_module(temp_mod_name)
with file:
self.assertIsNotNone(file)
self.assertTrue(filename[:-3].endswith(temp_mod_name))
self.assertEqual(info[0], '.py')
self.assertEqual(info[1], 'U')
self.assertEqual(info[2], imp.PY_SOURCE)
mod = imp.load_module(temp_mod_name, file, filename, info)
self.assertEqual(mod.a, 1)
mod = imp.load_source(temp_mod_name, temp_mod_name + '.py')
self.assertEqual(mod.a, 1)
mod = imp.load_compiled(
temp_mod_name, imp.cache_from_source(temp_mod_name + '.py'))
self.assertEqual(mod.a, 1)
if not os.path.exists(test_package_name):
os.mkdir(test_package_name)
with open(init_file_name, 'w') as file:
file.write('b = 2\n')
if support.check_impl_detail(cpython=True):
package = imp.load_package(test_package_name,
test_package_name)
self.assertEqual(package.b, 2)
finally:
del sys.path[0]
for ext in ('.py', '.pyc', '.pyo'):
support.unlink(temp_mod_name + ext)
support.unlink(init_file_name + ext)
support.rmtree(test_package_name)
def testRaising(self):
self.raise_catch(AttributeError, "AttributeError")
self.assertRaises(AttributeError, getattr, sys, "undefined_attribute")
self.raise_catch(EOFError, "EOFError")
fp = open(TESTFN, 'w')
fp.close()
fp = open(TESTFN, 'r')
savestdin = sys.stdin
try:
try:
import marshal
marshal.loads(b'')
except EOFError:
pass
finally:
sys.stdin = savestdin
fp.close()
unlink(TESTFN)
self.raise_catch(OSError, "OSError")
self.assertRaises(OSError, open, 'this file does not exist', 'r')
self.raise_catch(ImportError, "ImportError")
self.assertRaises(ImportError, __import__, "undefined_module")
self.raise_catch(IndexError, "IndexError")
x = []
self.assertRaises(IndexError, x.__getitem__, 10)
self.raise_catch(KeyError, "KeyError")
x = {}
self.assertRaises(KeyError, x.__getitem__, 'key')
self.raise_catch(KeyboardInterrupt, "KeyboardInterrupt")
self.raise_catch(MemoryError, "MemoryError")
self.raise_catch(NameError, "NameError")
try:
x = undefined_variable
except NameError:
pass
self.raise_catch(OverflowError, "OverflowError")
x = 1
for dummy in range(128):
x += x # this simply shouldn't blow up
self.raise_catch(RuntimeError, "RuntimeError")
self.raise_catch(RecursionError, "RecursionError")
self.raise_catch(SyntaxError, "SyntaxError")
try:
exec('/\n')
except SyntaxError:
pass
self.raise_catch(IndentationError, "IndentationError")
self.raise_catch(TabError, "TabError")
try:
compile("try:\n\t1/0\n \t1/0\nfinally:\n pass\n", '<string>',
'exec')
except TabError:
pass
else:
self.fail("TabError not raised")
self.raise_catch(SystemError, "SystemError")
self.raise_catch(SystemExit, "SystemExit")
self.assertRaises(SystemExit, sys.exit, 0)
self.raise_catch(TypeError, "TypeError")
try:
[] + ()
except TypeError:
pass
self.raise_catch(ValueError, "ValueError")
self.assertRaises(ValueError, chr, 17 << 16)
self.raise_catch(ZeroDivisionError, "ZeroDivisionError")
try:
x = 1 / 0
except ZeroDivisionError:
pass
self.raise_catch(Exception, "Exception")
try:
x = 1 / 0
except Exception as e:
pass
self.raise_catch(StopAsyncIteration, "StopAsyncIteration")
def unlink(file_name):
from test import support
try:
support.unlink(file_name)
except OSError:
pass
def remove_files(name):
for f in (name + ".py", name + ".pyc", name + ".pyw", name + "$py.class"):
unlink(f)
rmtree('__pycache__')
def tearDown(self):
support.unlink(TESTFN)
def tearDown(self):
if self.g is not None:
self.g.close()
unlink(filename)
def temporary_filename():
filename = tempfile.mktemp()
try:
yield filename
finally:
support.unlink(filename)
def tearDown(self):
if self.f:
self.f.close()
support.unlink(TESTFN)
def testEmptyFile(self):
support.unlink(TESTMOD)
open(TESTMOD, 'w+').close()
self.assertZipFailure(TESTMOD)
def tearDown(self):
support.unlink(self.filename)
def tearDown(self):
support.unlink(self.addr)
BaseTestAPI.tearDown(self)
def testNotZipFile(self):
support.unlink(TESTMOD)
fp = open(TESTMOD, 'w+')
fp.write('a' * 22)
fp.close()
self.assertZipFailure(TESTMOD)
def test_unlink(self):
with open(TESTFN, "w") as f:
pass
support.unlink(TESTFN)
self.assertFalse(os.path.exists(TESTFN))
support.unlink(TESTFN)
def bind_af_aware(sock, addr):
"""Helper function to bind a socket according to its family."""
if HAS_UNIX_SOCKETS and sock.family == socket.AF_UNIX:
# Make sure the path doesn't exist.
support.unlink(addr)
sock.bind(addr)
def test_mkfifo(self):
support.unlink(support.TESTFN)
posix.mkfifo(support.TESTFN, stat.S_IRUSR | stat.S_IWUSR)
self.assertTrue(stat.S_ISFIFO(posix.stat(support.TESTFN).st_mode))
def tearDown(self):
if self.f and not self.f.closed:
self.f.close()
unlink(TESTFN)
def test_builtin_zip(self):
self.assertEqual(list(zip()), [])
self.assertEqual(list(zip(*[])), [])
self.assertEqual(list(zip(*[(1, 2), 'ab'])), [(1, 'a'), (2, 'b')])
self.assertRaises(TypeError, zip, None)
self.assertRaises(TypeError, zip, range(10), 42)
self.assertRaises(TypeError, zip, range(10), zip)
self.assertEqual(list(zip(IteratingSequenceClass(3))), [(0, ), (1, ),
(2, )])
self.assertEqual(list(zip(SequenceClass(3))), [(0, ), (1, ), (2, )])
d = {"one": 1, "two": 2, "three": 3}
self.assertEqual(list(d.items()), list(zip(d, d.values())))
# Generate all ints starting at constructor arg.
class IntsFrom:
def __init__(self, start):
self.i = start
def __iter__(self):
return self
def __next__(self):
i = self.i
self.i = i + 1
return i
f = open(TESTFN, "w")
try:
f.write("a\n" "bbb\n" "cc\n")
finally:
f.close()
f = open(TESTFN, "r")
try:
self.assertEqual(list(zip(IntsFrom(0), f, IntsFrom(-100))),
[(0, "a\n", -100), (1, "bbb\n", -99),
(2, "cc\n", -98)])
finally:
f.close()
try:
unlink(TESTFN)
except OSError:
pass
self.assertEqual(list(zip(range(5))), [(i, ) for i in range(5)])
# Classes that lie about their lengths.
class NoGuessLen5:
def __getitem__(self, i):
if i >= 5:
raise IndexError
return i
class Guess3Len5(NoGuessLen5):
def __len__(self):
return 3
class Guess30Len5(NoGuessLen5):
def __len__(self):
return 30
def lzip(*args):
return list(zip(*args))
self.assertEqual(len(Guess3Len5()), 3)
self.assertEqual(len(Guess30Len5()), 30)
self.assertEqual(lzip(NoGuessLen5()), lzip(range(5)))
self.assertEqual(lzip(Guess3Len5()), lzip(range(5)))
self.assertEqual(lzip(Guess30Len5()), lzip(range(5)))
expected = [(i, i) for i in range(5)]
for x in NoGuessLen5(), Guess3Len5(), Guess30Len5():
for y in NoGuessLen5(), Guess3Len5(), Guess30Len5():
self.assertEqual(lzip(x, y), expected)
def tearDown(self):
for teardown_file in self.teardown_files:
support.unlink(teardown_file)
self._warnings_manager.__exit__(None, None, None)
def tearDown(self):
rmtree(TESTFN)
unlink(TESTFN)
def setUp(self):
support.unlink(TESTFN)
support.rmtree(TESTDIRN)
def testEmptyFile(self):
support.unlink(TESTMOD)
support.create_empty_file(TESTMOD)
self.assertZipFailure(TESTMOD)
def tearDownModule():
unlink(TESTFN)
def setUp(self):
support.unlink(self.filename)
def cleanup():
writer.close()
support.unlink(self.fname)
