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from __future__ import with_statement
import os
import re
import sys
import tempfile
import unittest
from test import test_support
class SysTest(unittest.TestCase):
def test_platform(self):
self.assertEquals(sys.platform[:4], "java",
"sys.platform is not java")
def test_exit_arg(self):
"sys.exit can be called with args"
try:
sys.exit("leaving now")
except SystemExit, e:
self.assertEquals(str(e), "leaving now")
def test_tuple_args(self):
"Exceptions raised unpacking tuple args have right line number"
def tuple_args( (x,y) ): pass
try:
tuple_args( 10 )
except TypeError:
tb = sys.exc_info()[2]
if tb.tb_lineno == 0:
self.fail("Traceback lineno was zero")
def test_name(self):
"sys.__name__ can be reassigned/deleted"
self.assertEquals(sys.__name__, 'sys')
sys.__name__ = 'foo'
self.assert_('foo' in str(sys))
del sys.__name__
self.assert_('foo' not in str(sys))
sys.__name__ = 'sys'
def test_readonly(self):
def deleteClass(): del sys.__class__
self.assertRaises(TypeError, deleteClass)
def deleteDict(): del sys.__dict__
self.assertRaises(TypeError, deleteDict)
def assignClass(): sys.__class__ = object
self.assertRaises(TypeError, assignClass)
def assignDict(): sys.__dict__ = {}
self.assertRaises(TypeError, assignDict)
def test_resetmethod(self):
gde = sys.getdefaultencoding
sys.getdefaultencoding = 5
self.assertEquals(sys.getdefaultencoding, 5)
del sys.getdefaultencoding
self.assertRaises(AttributeError, getattr, sys, 'getdefaultencoding')
sys.getdefaultencoding = gde
def test_reload(self):
gde = sys.getdefaultencoding
del sys.getdefaultencoding
reload(sys)
self.assert_(type(sys.getdefaultencoding) == type(gde))
def exec_code_separately(function, sharing=False):
"""Runs code in a separate context: (thread, PySystemState, PythonInterpreter)
A PySystemState is used in conjunction with its thread
context. This is not so desirable - at the very least it means
that a thread pool cannot be shared. But this is not the place to
revisit ancient design decisions."""
def function_context():
from org.python.core import Py
from org.python.util import PythonInterpreter
from org.python.core import PySystemState
ps = PySystemState()
pi = PythonInterpreter({}, ps)
if not sharing:
ps.shadow()
ps.builtins = ps.builtins.copy()
pi.exec(function.func_code)
import threading
context = threading.Thread(target=function_context)
context.start()
context.join()
def set_globally():
import sys
import test.sys_jy_test_module # used as a probe
# can't use 'foo', test_with wants to have that undefined
sys.builtins['test_sys_jy_foo'] = 42
def set_shadow():
import sys
sys.builtins['fum'] = 24
class ShadowingTest(unittest.TestCase):
def setUp(self):
exec_code_separately(set_globally, sharing=True)
exec_code_separately(set_shadow)
def test_super_globals(self):
import sys, __builtin__
def get_sym(sym):
return sys.builtins.get(sym)
def get_sym_attr(sym):
return hasattr(__builtin__, sym)
self.assertEqual(test_sys_jy_foo, 42, "should be able to install a new builtin ('super global')")
self.assertEqual(get_sym('test_sys_jy_foo'), 42)
self.assertTrue(get_sym_attr('test_sys_jy_foo'))
def is_fum_there(): fum
self.assertRaises(NameError, is_fum_there) # shadowed global ('fum') should not be visible
self.assertEqual(get_sym('fum'), None)
self.assertTrue(not(get_sym_attr('fum')))
def test_sys_modules_per_instance(self):
import sys
self.assertTrue('sys_jy_test_module' not in sys.modules, "sys.modules should be per PySystemState instance")
class SyspathResourceTest(unittest.TestCase):
def setUp(self):
self.orig_path = sys.path
sys.path.insert(0, test_support.findfile("bug1373.jar"))
def tearDown(self):
sys.path = self.orig_path
def test_resource_stream_from_syspath(self):
from pck import Main
self.assert_(Main.getResourceAsStream('Main.txt'))
def test_resource_url_from_syspath(self):
from pck import Main
self.assert_(Main.getResource('Main.txt'))
class SyspathUnicodeTest(unittest.TestCase):
"""bug 1693: importing from a unicode path threw a unicode encoding
error"""
def test_nonexisting_import_from_unicodepath(self):
# \xf6 = german o umlaut
sys.path.append(u'/home/tr\xf6\xf6t')
self.assertRaises(ImportError, __import__, 'non_existing_module')
def test_import_from_unicodepath(self):
# \xf6 = german o umlaut
moduleDir = tempfile.mkdtemp(suffix=u'tr\xf6\xf6t')
try:
self.assertTrue(os.path.exists(moduleDir))
module = 'unicodetempmodule'
moduleFile = '%s/%s.py' % (moduleDir, module)
try:
with open(moduleFile, 'w') as f:
f.write('# empty module')
self.assertTrue(os.path.exists(moduleFile))
sys.path.append(moduleDir)
__import__(module)
moduleClassFile = '%s/%s$py.class' % (moduleDir, module)
self.assertTrue(os.path.exists(moduleClassFile))
os.remove(moduleClassFile)
finally:
os.remove(moduleFile)
finally:
os.rmdir(moduleDir)
self.assertFalse(os.path.exists(moduleDir))
def test_main():
test_support.run_unittest(SysTest,
ShadowingTest,
SyspathResourceTest,
SyspathUnicodeTest)
if __name__ == "__main__":
test_main()
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