270 lines
8.6 KiB
Python
270 lines
8.6 KiB
Python
import polyloader
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import pytest
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import py_compile
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import ptutils
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import stat
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import sys
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import os
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import imp
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import random
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import struct
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class Compiler:
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def __init__(self, pt):
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self.pt = pt
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def __call__(self, source_text, filename, *extra):
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return compile("result='Success for %s: %s'" %
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(self.pt, source_text.rstrip()), filename, "exec")
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def __repr__(self):
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return "Compiler %s" % (self.pt)
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polyloader.install(Compiler("2"), ['2'])
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TESTFN = '@test'
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def clean_tmpfiles(path):
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if os.path.exists(path):
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os.remove(path)
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if os.path.exists(path + 'c'):
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os.remove(path + 'c')
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if os.path.exists(path + 'o'):
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os.remove(path + 'o')
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def unload(name):
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try:
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del sys.modules[name]
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except KeyError:
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pass
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# This exists mostly to test that the inclusion of PolyLoader doesn't
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# break anything else in Python.
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# Tests commented out: 2
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class Test_Imports(object):
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def test_case_sensitivity(self):
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# Brief digression to test that import is case-sensitive: if we got
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# this far, we know for sure that "random" exists.
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try:
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import RAnDoM
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except ImportError:
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pass
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else:
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assert(False)
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def test_import(self):
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sys.path.insert(0, os.curdir)
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ext = 'py'
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try:
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# The extension is normally ".py", perhaps ".pyw".
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source = TESTFN + os.extsep + ext
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pyc = TESTFN + os.extsep + "pyc"
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with open(source, "w") as f:
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print >> f, ("# This tests Python's ability to import a", ext,
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"file.")
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a = random.randrange(1000)
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b = random.randrange(1000)
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print >> f, "a =", a
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print >> f, "b =", b
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try:
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mod = __import__(TESTFN)
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except ImportError, err:
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print("import from %s (%s) failed: %s" % (ext, os.curdir, err))
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assert(False)
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else:
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assert(mod.a == a)
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assert(mod.b == b)
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finally:
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os.remove(source)
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try:
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if not sys.dont_write_bytecode:
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imp.reload(mod)
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except ImportError, err:
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print("import from .pyc/.pyo failed: %s" % err)
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assert(False)
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finally:
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clean_tmpfiles(source)
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unload(TESTFN)
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finally:
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del sys.path[0]
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def test_execute_bit_not_copied(self):
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# Issue 6070: under posix .pyc files got their execute bit set if
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# the .py file had the execute bit set, but they aren't executable.
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oldmask = os.umask(022)
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sys.path.insert(0, os.curdir)
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try:
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fname = TESTFN + os.extsep + "py"
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f = open(fname, 'w').close()
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os.chmod(fname, (stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH |
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stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH))
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__import__(TESTFN)
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fn = fname + 'c'
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if not os.path.exists(fn):
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fn = fname + 'o'
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if not os.path.exists(fn):
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self.fail("__import__ did not result in creation of "
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"either a .pyc or .pyo file")
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s = os.stat(fn)
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assert(s.st_mode & (stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH))
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assert(not (s.st_mode & (stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)))
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finally:
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os.umask(oldmask)
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clean_tmpfiles(fname)
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unload(TESTFN)
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del sys.path[0]
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def test_imp_module(self):
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# Verify that the imp module can correctly load and find .py files
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# XXX (ncoghlan): It would be nice to use test_support.CleanImport
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# here, but that breaks because the os module registers some
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# handlers in copy_reg on import. Since CleanImport doesn't
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# revert that registration, the module is left in a broken
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# state after reversion. Reinitialising the module contents
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# and just reverting os.environ to its previous state is an OK
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# workaround
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orig_path = os.path
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orig_getenv = os.getenv
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with ptutils.EnvironmentVarGuard():
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x = imp.find_module("os")
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new_os = imp.load_module("os", *x)
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assert(os == new_os)
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assert(orig_path == new_os.path)
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assert(orig_getenv != new_os.getenv)
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def test_module_with_large_stack(self, module='longlist'):
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# Regression test for http://bugs.python.org/issue561858.
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filename = module + os.extsep + 'py'
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# Create a file with a list of 65000 elements.
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with open(filename, 'w+') as f:
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f.write('d = [\n')
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for i in range(65000):
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f.write('"",\n')
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f.write(']')
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# Compile & remove .py file, we only need .pyc (or .pyo).
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with open(filename, 'r') as f:
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py_compile.compile(filename)
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os.remove(filename)
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# Need to be able to load from current dir.
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sys.path.append('')
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# This used to crash.
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exec 'import ' + module
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# Cleanup.
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del sys.path[-1]
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clean_tmpfiles(filename)
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def test_failing_import_sticks(self):
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source = TESTFN + os.extsep + "py"
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with open(source, "w") as f:
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print >> f, "a = 1 // 0"
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# New in 2.4, we shouldn't be able to import that no matter how often
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# we try.
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sys.path.insert(0, os.curdir)
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try:
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for i in [1, 2, 3]:
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with pytest.raises(ZeroDivisionError) as zde:
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__import__(TESTFN)
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assert(sys.modules.get(TESTFN) == None)
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finally:
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del sys.path[0]
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clean_tmpfiles(source)
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# def test_failing_reload(self):
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# # A failing reload should leave the module object in sys.modules.
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# source = TESTFN + os.extsep + "py"
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# with open(source, "w") as f:
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# print >> f, "a = 1"
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# print >> f, "b = 2"
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#
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# sys.path.insert(0, os.curdir)
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# try:
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# mod = __import__(TESTFN)
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# assert(sys.modules.get(TESTFN) != None)
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# assert(mod.a == 1)
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# assert(mod.b == 2)
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#
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# # On WinXP, just replacing the .py file wasn't enough to
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# # convince reload() to reparse it. Maybe the timestamp didn't
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# # move enough. We force it to get reparsed by removing the
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# # compiled file too.
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# clean_tmpfiles(TESTFN)
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#
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# # Now damage the module.
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# with open(source, "w") as f:
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# print >> f, "a = 10"
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# print >> f, "b = 20 // 0"
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#
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# with pytest.raises(ZeroDivisionError) as zde:
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# imp.reload(mod)
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#
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# # But we still expect the module to be in sys.modules.
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# mod = sys.modules.get(TESTFN)
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# assert(mod != None)
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#
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# # We should have replaced a w/ 10, but the old b value should
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# # stick.
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# assert(mod.a == 10)
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# assert(mod.b == 2)
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#
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# finally:
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# del sys.path[0]
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# clean_tmpfiles(source)
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# unload(TESTFN)
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def test_infinite_reload(self):
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# http://bugs.python.org/issue742342 reports that Python segfaults
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# (infinite recursion in C) when faced with self-recursive reload()ing.
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sys.path.insert(0, os.path.dirname(__file__))
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try:
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with pytest.raises(ImportError):
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import infinite_reload
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finally:
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del sys.path[0]
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def test_import_name_binding(self):
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# import x.y.z binds x in the current namespace.
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import test as x
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import test.test_support
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assert(x == test)
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assert(hasattr(test.test_support, "__file__"))
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# import x.y.z as w binds z as w.
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import test.test_support as y
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assert(y == test.test_support)
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def test_import_initless_directory_warning(self):
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with pytest.raises(ImportError) as ie:
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__import__('site-packages')
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def test_import_by_filename(self):
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path = os.path.abspath(TESTFN)
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with pytest.raises(ImportError) as c:
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__import__(path)
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assert("Import by filename is not supported." == c.value[0])
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# def test_bug7732(self):
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# source = TESTFN + '.2'
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# os.mkdir(source)
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# try:
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# with pytest.raises(IOError) as iie:
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# mod = imp.find_module(TESTFN, ["."])
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# print("Found mod %s" % mod)
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# finally:
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# os.rmdir(source)
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