import sys
import compileall
import importlib.util
import test.test_importlib.util
import os
import pathlib
import py_compile
import shutil
import struct
import tempfile
import time
import unittest
import io
from unittest import mock, skipUnless
try:
from concurrent.futures import ProcessPoolExecutor
_have_multiprocessing = True
except ImportError:
_have_multiprocessing = False
from test import support
from test.support import script_helper
class CompileallTests(unittest.TestCase):
def setUp(self):
self.directory = tempfile.mkdtemp()
self.source_path = os.path.join(self.directory, '_test.py')
self.bc_path = importlib.util.cache_from_source(self.source_path)
with open(self.source_path, 'w') as file:
file.write('x = 123\n')
self.source_path2 = os.path.join(self.directory, '_test2.py')
self.bc_path2 = importlib.util.cache_from_source(self.source_path2)
shutil.copyfile(self.source_path, self.source_path2)
self.subdirectory = os.path.join(self.directory, '_subdir')
os.mkdir(self.subdirectory)
self.source_path3 = os.path.join(self.subdirectory, '_test3.py')
shutil.copyfile(self.source_path, self.source_path3)
def tearDown(self):
shutil.rmtree(self.directory)
def add_bad_source_file(self):
self.bad_source_path = os.path.join(self.directory, '_test_bad.py')
with open(self.bad_source_path, 'w') as file:
file.write('x (\n')
def data(self):
with open(self.bc_path, 'rb') as file:
data = file.read(8)
mtime = int(os.stat(self.source_path).st_mtime)
compare = struct.pack('<4sl', importlib.util.MAGIC_NUMBER, mtime)
return data, compare
@unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()')
def recreation_check(self, metadata):
"""Check that compileall recreates bytecode when the new metadata is
used."""
py_compile.compile(self.source_path)
self.assertEqual(*self.data())
with open(self.bc_path, 'rb') as file:
bc = file.read()[len(metadata):]
with open(self.bc_path, 'wb') as file:
file.write(metadata)
file.write(bc)
self.assertNotEqual(*self.data())
compileall.compile_dir(self.directory, force=False, quiet=True)
self.assertTrue(*self.data())
def test_mtime(self):
# Test a change in mtime leads to a new .pyc.
self.recreation_check(struct.pack('<4sl', importlib.util.MAGIC_NUMBER,
1))
def test_magic_number(self):
# Test a change in mtime leads to a new .pyc.
self.recreation_check(b'\0\0\0\0')
def test_compile_files(self):
# Test compiling a single file, and complete directory
for fn in (self.bc_path, self.bc_path2):
try:
os.unlink(fn)
except:
pass
self.assertTrue(compileall.compile_file(self.source_path,
force=False, quiet=True))
self.assertTrue(os.path.isfile(self.bc_path) and
not os.path.isfile(self.bc_path2))
os.unlink(self.bc_path)
self.assertTrue(compileall.compile_dir(self.directory, force=False,
quiet=True))
self.assertTrue(os.path.isfile(self.bc_path) and
os.path.isfile(self.bc_path2))
os.unlink(self.bc_path)
os.unlink(self.bc_path2)
# Test against bad files
self.add_bad_source_file()
self.assertFalse(compileall.compile_file(self.bad_source_path,
force=False, quiet=2))
self.assertFalse(compileall.compile_dir(self.directory,
force=False, quiet=2))
def test_compile_file_pathlike(self):
self.assertFalse(os.path.isfile(self.bc_path))
# we should also test the output
with support.captured_stdout() as stdout:
self.assertTrue(compileall.compile_file(pathlib.Path(self.source_path)))
self.assertRegex(stdout.getvalue(), r'Compiling ([^WindowsPath|PosixPath].*)')
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_file_pathlike_ddir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_file(pathlib.Path(self.source_path),
ddir=pathlib.Path('ddir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_path(self):
with test.test_importlib.util.import_state(path=[self.directory]):
self.assertTrue(compileall.compile_path(quiet=2))
with test.test_importlib.util.import_state(path=[self.directory]):
self.add_bad_source_file()
self.assertFalse(compileall.compile_path(skip_curdir=False,
force=True, quiet=2))
def test_no_pycache_in_non_package(self):
# Bug 8563 reported that __pycache__ directories got created by
# compile_file() for non-.py files.
data_dir = os.path.join(self.directory, 'data')
data_file = os.path.join(data_dir, 'file')
os.mkdir(data_dir)
# touch data/file
with open(data_file, 'w'):
pass
compileall.compile_file(data_file)
self.assertFalse(os.path.exists(os.path.join(data_dir, '__pycache__')))
def test_optimize(self):
# make sure compiling with different optimization settings than the
# interpreter's creates the correct file names
optimize, opt = (1, 1) if __debug__ else (0, '')
compileall.compile_dir(self.directory, quiet=True, optimize=optimize)
cached = importlib.util.cache_from_source(self.source_path,
optimization=opt)
self.assertTrue(os.path.isfile(cached))
cached2 = importlib.util.cache_from_source(self.source_path2,
optimization=opt)
self.assertTrue(os.path.isfile(cached2))
cached3 = importlib.util.cache_from_source(self.source_path3,
optimization=opt)
self.assertTrue(os.path.isfile(cached3))
def test_compile_dir_pathlike(self):
self.assertFalse(os.path.isfile(self.bc_path))
with support.captured_stdout() as stdout:
compileall.compile_dir(pathlib.Path(self.directory))
line = stdout.getvalue().splitlines()[0]
self.assertRegex(line, r'Listing ([^WindowsPath|PosixPath].*)')
self.assertTrue(os.path.isfile(self.bc_path))
@mock.patch('concurrent.futures.ProcessPoolExecutor')
def test_compile_pool_called(self, pool_mock):
compileall.compile_dir(self.directory, quiet=True, workers=5)
self.assertTrue(pool_mock.called)
def test_compile_workers_non_positive(self):
with self.assertRaisesRegex(ValueError,
"workers must be greater or equal to 0"):
compileall.compile_dir(self.directory, workers=-1)
@mock.patch('concurrent.futures.ProcessPoolExecutor')
def test_compile_workers_cpu_count(self, pool_mock):
compileall.compile_dir(self.directory, quiet=True, workers=0)
self.assertEqual(pool_mock.call_args[1]['max_workers'], None)
@mock.patch('concurrent.futures.ProcessPoolExecutor')
@mock.patch('compileall.compile_file')
def test_compile_one_worker(self, compile_file_mock, pool_mock):
compileall.compile_dir(self.directory, quiet=True)
self.assertFalse(pool_mock.called)
self.assertTrue(compile_file_mock.called)
@mock.patch('concurrent.futures.ProcessPoolExecutor', new=None)
@mock.patch('compileall.compile_file')
def test_compile_missing_multiprocessing(self, compile_file_mock):
compileall.compile_dir(self.directory, quiet=True, workers=5)
self.assertTrue(compile_file_mock.called)
class EncodingTest(unittest.TestCase):
"""Issue 6716: compileall should escape source code when printing errors
to stdout."""
def setUp(self):
self.directory = tempfile.mkdtemp()
self.source_path = os.path.join(self.directory, '_test.py')
with open(self.source_path, 'w', encoding='utf-8') as file:
file.write('# -*- coding: utf-8 -*-\n')
file.write('print u"\u20ac"\n')
def tearDown(self):
shutil.rmtree(self.directory)
def test_error(self):
try:
orig_stdout = sys.stdout
sys.stdout = io.TextIOWrapper(io.BytesIO(),encoding='ascii')
compileall.compile_dir(self.directory)
finally:
sys.stdout = orig_stdout
class CommandLineTests(unittest.TestCase):
"""Test compileall's CLI."""
@classmethod
def setUpClass(cls):
for path in filter(os.path.isdir, sys.path):
directory_created = False
directory = pathlib.Path(path) / '__pycache__'
path = directory / 'test.try'
try:
if not directory.is_dir():
directory.mkdir()
directory_created = True
with path.open('w') as file:
file.write('# for test_compileall')
except OSError:
sys_path_writable = False
break
finally:
support.unlink(str(path))
if directory_created:
directory.rmdir()
else:
sys_path_writable = True
cls._sys_path_writable = sys_path_writable
def _skip_if_sys_path_not_writable(self):
if not self._sys_path_writable:
raise unittest.SkipTest('not all entries on sys.path are writable')
def _get_run_args(self, args):
return [*support.optim_args_from_interpreter_flags(),
'-S', '-m', 'compileall',
*args]
def assertRunOK(self, *args, **env_vars):
rc, out, err = script_helper.assert_python_ok(
*self._get_run_args(args), **env_vars)
self.assertEqual(b'', err)
return out
def assertRunNotOK(self, *args, **env_vars):
rc, out, err = script_helper.assert_python_failure(
*self._get_run_args(args), **env_vars)
return rc, out, err
def assertCompiled(self, fn):
path = importlib.util.cache_from_source(fn)
self.assertTrue(os.path.exists(path))
def assertNotCompiled(self, fn):
path = importlib.util.cache_from_source(fn)
self.assertFalse(os.path.exists(path))
def setUp(self):
self.directory = tempfile.mkdtemp()
self.addCleanup(support.rmtree, self.directory)
self.pkgdir = os.path.join(self.directory, 'foo')
os.mkdir(self.pkgdir)
self.pkgdir_cachedir = os.path.join(self.pkgdir, '__pycache__')
# Create the __init__.py and a package module.
self.initfn = script_helper.make_script(self.pkgdir, '__init__', '')
self.barfn = script_helper.make_script(self.pkgdir, 'bar', '')
def test_no_args_compiles_path(self):
# Note that -l is implied for the no args case.
self._skip_if_sys_path_not_writable()
bazfn = script_helper.make_script(self.directory, 'baz', '')
self.assertRunOK(PYTHONPATH=self.directory)
self.assertCompiled(bazfn)
self.assertNotCompiled(self.initfn)
self.assertNotCompiled(self.barfn)
def test_no_args_respects_force_flag(self):
self._skip_if_sys_path_not_writable()
bazfn = script_helper.make_script(self.directory, 'baz', '')
self.assertRunOK(PYTHONPATH=self.directory)
pycpath = importlib.util.cache_from_source(bazfn)
# Set atime/mtime backward to avoid file timestamp resolution issues
os.utime(pycpath, (time.time()-60,)*2)
mtime = os.stat(pycpath).st_mtime
# Without force, no recompilation
self.assertRunOK(PYTHONPATH=self.directory)
mtime2 = os.stat(pycpath).st_mtime
self.assertEqual(mtime, mtime2)
# Now force it.
self.assertRunOK('-f', PYTHONPATH=self.directory)
mtime2 = os.stat(pycpath).st_mtime
self.assertNotEqual(mtime, mtime2)
def test_no_args_respects_quiet_flag(self):
self._skip_if_sys_path_not_writable()
script_helper.make_script(self.directory, 'baz', '')
noisy = self.assertRunOK(PYTHONPATH=self.directory)
self.assertIn(b'Listing ', noisy)
quiet = self.assertRunOK('-q', PYTHONPATH=self.directory)
self.assertNotIn(b'Listing ', quiet)
# Ensure that the default behavior of compileall's CLI is to create
# PEP 3147/PEP 488 pyc files.
for name, ext, switch in [
('normal', 'pyc', []),
('optimize', 'opt-1.pyc', ['-O']),
('doubleoptimize', 'opt-2.pyc', ['-OO']),
]:
def f(self, ext=ext, switch=switch):
script_helper.assert_python_ok(*(switch +
['-m', 'compileall', '-q', self.pkgdir]))
# Verify the __pycache__ directory contents.
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
expected = sorted(base.format(sys.implementation.cache_tag, ext)
for base in ('__init__.{}.{}', 'bar.{}.{}'))
self.assertEqual(sorted(os.listdir(self.pkgdir_cachedir)), expected)
# Make sure there are no .pyc files in the source directory.
self.assertFalse([fn for fn in os.listdir(self.pkgdir)
if fn.endswith(ext)])
locals()['test_pep3147_paths_' + name] = f
def test_legacy_paths(self):
# Ensure that with the proper switch, compileall leaves legacy
# pyc files, and no __pycache__ directory.
self.assertRunOK('-b', '-q', self.pkgdir)
# Verify the __pycache__ directory contents.
self.assertFalse(os.path.exists(self.pkgdir_cachedir))
expected = sorted(['__init__.py', '__init__.pyc', 'bar.py',
'bar.pyc'])
self.assertEqual(sorted(os.listdir(self.pkgdir)), expected)
def test_multiple_runs(self):
# Bug 8527 reported that multiple calls produced empty
# __pycache__/__pycache__ directories.
self.assertRunOK('-q', self.pkgdir)
# Verify the __pycache__ directory contents.
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
cachecachedir = os.path.join(self.pkgdir_cachedir, '__pycache__')
self.assertFalse(os.path.exists(cachecachedir))
# Call compileall again.
self.assertRunOK('-q', self.pkgdir)
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
self.assertFalse(os.path.exists(cachecachedir))
def test_force(self):
self.assertRunOK('-q', self.pkgdir)
pycpath = importlib.util.cache_from_source(self.barfn)
# set atime/mtime backward to avoid file timestamp resolution issues
os.utime(pycpath, (time.time()-60,)*2)
mtime = os.stat(pycpath).st_mtime
# without force, no recompilation
self.assertRunOK('-q', self.pkgdir)
mtime2 = os.stat(pycpath).st_mtime
self.assertEqual(mtime, mtime2)
# now force it.
self.assertRunOK('-q', '-f', self.pkgdir)
mtime2 = os.stat(pycpath).st_mtime
self.assertNotEqual(mtime, mtime2)
def test_recursion_control(self):
subpackage = os.path.join(self.pkgdir, 'spam')
os.mkdir(subpackage)
subinitfn = script_helper.make_script(subpackage, '__init__', '')
hamfn = script_helper.make_script(subpackage, 'ham', '')
self.assertRunOK('-q', '-l', self.pkgdir)
self.assertNotCompiled(subinitfn)
self.assertFalse(os.path.exists(os.path.join(subpackage, '__pycache__')))
self.assertRunOK('-q', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
def test_recursion_limit(self):
subpackage = os.path.join(self.pkgdir, 'spam')
subpackage2 = os.path.join(subpackage, 'ham')
subpackage3 = os.path.join(subpackage2, 'eggs')
for pkg in (subpackage, subpackage2, subpackage3):
script_helper.make_pkg(pkg)
subinitfn = os.path.join(subpackage, '__init__.py')
hamfn = script_helper.make_script(subpackage, 'ham', '')
spamfn = script_helper.make_script(subpackage2, 'spam', '')
eggfn = script_helper.make_script(subpackage3, 'egg', '')
self.assertRunOK('-q', '-r 0', self.pkgdir)
self.assertNotCompiled(subinitfn)
self.assertFalse(
os.path.exists(os.path.join(subpackage, '__pycache__')))
self.assertRunOK('-q', '-r 1', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertNotCompiled(spamfn)
self.assertRunOK('-q', '-r 2', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertCompiled(spamfn)
self.assertNotCompiled(eggfn)
self.assertRunOK('-q', '-r 5', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertCompiled(spamfn)
self.assertCompiled(eggfn)
def test_quiet(self):
noisy = self.assertRunOK(self.pkgdir)
quiet = self.assertRunOK('-q', self.pkgdir)
self.assertNotEqual(b'', noisy)
self.assertEqual(b'', quiet)
def test_silent(self):
script_helper.make_script(self.pkgdir, 'crunchyfrog', 'bad(syntax')
_, quiet, _ = self.assertRunNotOK('-q', self.pkgdir)
_, silent, _ = self.assertRunNotOK('-qq', self.pkgdir)
self.assertNotEqual(b'', quiet)
self.assertEqual(b'', silent)
def test_regexp(self):
self.assertRunOK('-q', '-x', r'ba[^\\/]*$', self.pkgdir)
self.assertNotCompiled(self.barfn)
self.assertCompiled(self.initfn)
def test_multiple_dirs(self):
pkgdir2 = os.path.join(self.directory, 'foo2')
os.mkdir(pkgdir2)
init2fn = script_helper.make_script(pkgdir2, '__init__', '')
bar2fn = script_helper.make_script(pkgdir2, 'bar2', '')
self.assertRunOK('-q', self.pkgdir, pkgdir2)
self.assertCompiled(self.initfn)
self.assertCompiled(self.barfn)
self.assertCompiled(init2fn)
self.assertCompiled(bar2fn)
def test_d_compile_error(self):
script_helper.make_script(self.pkgdir, 'crunchyfrog', 'bad(syntax')
rc, out, err = self.assertRunNotOK('-q', '-d', 'dinsdale', self.pkgdir)
self.assertRegex(out, b'File "dinsdale')
def test_d_runtime_error(self):
bazfn = script_helper.make_script(self.pkgdir, 'baz', 'raise Exception')
self.assertRunOK('-q', '-d', 'dinsdale', self.pkgdir)
fn = script_helper.make_script(self.pkgdir, 'bing', 'import baz')
pyc = importlib.util.cache_from_source(bazfn)
os.rename(pyc, os.path.join(self.pkgdir, 'baz.pyc'))
os.remove(bazfn)
rc, out, err = script_helper.assert_python_failure(fn, __isolated=False)
self.assertRegex(err, b'File "dinsdale')
def test_include_bad_file(self):
rc, out, err = self.assertRunNotOK(
'-i', os.path.join(self.directory, 'nosuchfile'), self.pkgdir)
self.assertRegex(out, b'rror.*nosuchfile')
self.assertNotRegex(err, b'Traceback')
self.assertFalse(os.path.exists(importlib.util.cache_from_source(
self.pkgdir_cachedir)))
def test_include_file_with_arg(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
with open(os.path.join(self.directory, 'l1'), 'w') as l1:
l1.write(os.path.join(self.pkgdir, 'f1.py')+os.linesep)
l1.write(os.path.join(self.pkgdir, 'f2.py')+os.linesep)
self.assertRunOK('-i', os.path.join(self.directory, 'l1'), f4)
self.assertCompiled(f1)
self.assertCompiled(f2)
self.assertNotCompiled(f3)
self.assertCompiled(f4)
def test_include_file_no_arg(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
with open(os.path.join(self.directory, 'l1'), 'w') as l1:
l1.write(os.path.join(self.pkgdir, 'f2.py')+os.linesep)
self.assertRunOK('-i', os.path.join(self.directory, 'l1'))
self.assertNotCompiled(f1)
self.assertCompiled(f2)
self.assertNotCompiled(f3)
self.assertNotCompiled(f4)
def test_include_on_stdin(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
p = script_helper.spawn_python(*(self._get_run_args(()) + ['-i', '-']))
p.stdin.write((f3+os.linesep).encode('ascii'))
script_helper.kill_python(p)
self.assertNotCompiled(f1)
self.assertNotCompiled(f2)
self.assertCompiled(f3)
self.assertNotCompiled(f4)
def test_compiles_as_much_as_possible(self):
bingfn = script_helper.make_script(self.pkgdir, 'bing', 'syntax(error')
rc, out, err = self.assertRunNotOK('nosuchfile', self.initfn,
bingfn, self.barfn)
self.assertRegex(out, b'rror')
self.assertNotCompiled(bingfn)
self.assertCompiled(self.initfn)
self.assertCompiled(self.barfn)
def test_invalid_arg_produces_message(self):
out = self.assertRunOK('badfilename')
self.assertRegex(out, b"Can't list 'badfilename'")
@skipUnless(_have_multiprocessing, "requires multiprocessing")
def test_workers(self):
bar2fn = script_helper.make_script(self.directory, 'bar2', '')
files = []
for suffix in range(5):
pkgdir = os.path.join(self.directory, 'foo{}'.format(suffix))
os.mkdir(pkgdir)
fn = script_helper.make_script(pkgdir, '__init__', '')
files.append(script_helper.make_script(pkgdir, 'bar2', ''))
self.assertRunOK(self.directory, '-j', '0')
self.assertCompiled(bar2fn)
for file in files:
self.assertCompiled(file)
@mock.patch('compileall.compile_dir')
def test_workers_available_cores(self, compile_dir):
with mock.patch("sys.argv",
new=[sys.executable, self.directory, "-j0"]):
compileall.main()
self.assertTrue(compile_dir.called)
self.assertEqual(compile_dir.call_args[-1]['workers'], None)
if __name__ == "__main__":
unittest.main()