--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/test_sys.py Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,357 @@
+# -*- coding: iso-8859-1 -*-
+import unittest, test.test_support
+import sys, cStringIO
+
+class SysModuleTest(unittest.TestCase):
+
+ def test_original_displayhook(self):
+ import __builtin__
+ savestdout = sys.stdout
+ out = cStringIO.StringIO()
+ sys.stdout = out
+
+ dh = sys.__displayhook__
+
+ self.assertRaises(TypeError, dh)
+ if hasattr(__builtin__, "_"):
+ del __builtin__._
+
+ dh(None)
+ self.assertEqual(out.getvalue(), "")
+ self.assert_(not hasattr(__builtin__, "_"))
+ dh(42)
+ self.assertEqual(out.getvalue(), "42\n")
+ self.assertEqual(__builtin__._, 42)
+
+ del sys.stdout
+ self.assertRaises(RuntimeError, dh, 42)
+
+ sys.stdout = savestdout
+
+ def test_lost_displayhook(self):
+ olddisplayhook = sys.displayhook
+ del sys.displayhook
+ code = compile("42", "<string>", "single")
+ self.assertRaises(RuntimeError, eval, code)
+ sys.displayhook = olddisplayhook
+
+ def test_custom_displayhook(self):
+ olddisplayhook = sys.displayhook
+ def baddisplayhook(obj):
+ raise ValueError
+ sys.displayhook = baddisplayhook
+ code = compile("42", "<string>", "single")
+ self.assertRaises(ValueError, eval, code)
+ sys.displayhook = olddisplayhook
+
+ def test_original_excepthook(self):
+ savestderr = sys.stderr
+ err = cStringIO.StringIO()
+ sys.stderr = err
+
+ eh = sys.__excepthook__
+
+ self.assertRaises(TypeError, eh)
+ try:
+ raise ValueError(42)
+ except ValueError, exc:
+ eh(*sys.exc_info())
+
+ sys.stderr = savestderr
+ self.assert_(err.getvalue().endswith("ValueError: 42\n"))
+
+ # FIXME: testing the code for a lost or replaced excepthook in
+ # Python/pythonrun.c::PyErr_PrintEx() is tricky.
+
+ def test_exc_clear(self):
+ self.assertRaises(TypeError, sys.exc_clear, 42)
+
+ # Verify that exc_info is present and matches exc, then clear it, and
+ # check that it worked.
+ def clear_check(exc):
+ typ, value, traceback = sys.exc_info()
+ self.assert_(typ is not None)
+ self.assert_(value is exc)
+ self.assert_(traceback is not None)
+
+ sys.exc_clear()
+
+ typ, value, traceback = sys.exc_info()
+ self.assert_(typ is None)
+ self.assert_(value is None)
+ self.assert_(traceback is None)
+
+ def clear():
+ try:
+ raise ValueError, 42
+ except ValueError, exc:
+ clear_check(exc)
+
+ # Raise an exception and check that it can be cleared
+ clear()
+
+ # Verify that a frame currently handling an exception is
+ # unaffected by calling exc_clear in a nested frame.
+ try:
+ raise ValueError, 13
+ except ValueError, exc:
+ typ1, value1, traceback1 = sys.exc_info()
+ clear()
+ typ2, value2, traceback2 = sys.exc_info()
+
+ self.assert_(typ1 is typ2)
+ self.assert_(value1 is exc)
+ self.assert_(value1 is value2)
+ self.assert_(traceback1 is traceback2)
+
+ # Check that an exception can be cleared outside of an except block
+ clear_check(exc)
+
+ def test_exit(self):
+ self.assertRaises(TypeError, sys.exit, 42, 42)
+
+ # call without argument
+ try:
+ sys.exit(0)
+ except SystemExit, exc:
+ self.assertEquals(exc.code, 0)
+ except:
+ self.fail("wrong exception")
+ else:
+ self.fail("no exception")
+
+ # call with tuple argument with one entry
+ # entry will be unpacked
+ try:
+ sys.exit(42)
+ except SystemExit, exc:
+ self.assertEquals(exc.code, 42)
+ except:
+ self.fail("wrong exception")
+ else:
+ self.fail("no exception")
+
+ # call with integer argument
+ try:
+ sys.exit((42,))
+ except SystemExit, exc:
+ self.assertEquals(exc.code, 42)
+ except:
+ self.fail("wrong exception")
+ else:
+ self.fail("no exception")
+
+ # call with string argument
+ try:
+ sys.exit("exit")
+ except SystemExit, exc:
+ self.assertEquals(exc.code, "exit")
+ except:
+ self.fail("wrong exception")
+ else:
+ self.fail("no exception")
+
+ # call with tuple argument with two entries
+ try:
+ sys.exit((17, 23))
+ except SystemExit, exc:
+ self.assertEquals(exc.code, (17, 23))
+ except:
+ self.fail("wrong exception")
+ else:
+ self.fail("no exception")
+
+ # test that the exit machinery handles SystemExits properly
+ import subprocess
+ # both unnormalized...
+ rc = subprocess.call([sys.executable, "-c",
+ "raise SystemExit, 46"])
+ self.assertEqual(rc, 46)
+ # ... and normalized
+ rc = subprocess.call([sys.executable, "-c",
+ "raise SystemExit(47)"])
+ self.assertEqual(rc, 47)
+
+
+ def test_getdefaultencoding(self):
+ if test.test_support.have_unicode:
+ self.assertRaises(TypeError, sys.getdefaultencoding, 42)
+ # can't check more than the type, as the user might have changed it
+ self.assert_(isinstance(sys.getdefaultencoding(), str))
+
+ # testing sys.settrace() is done in test_trace.py
+ # testing sys.setprofile() is done in test_profile.py
+
+ def test_setcheckinterval(self):
+ self.assertRaises(TypeError, sys.setcheckinterval)
+ orig = sys.getcheckinterval()
+ for n in 0, 100, 120, orig: # orig last to restore starting state
+ sys.setcheckinterval(n)
+ self.assertEquals(sys.getcheckinterval(), n)
+
+ def test_recursionlimit(self):
+ self.assertRaises(TypeError, sys.getrecursionlimit, 42)
+ oldlimit = sys.getrecursionlimit()
+ self.assertRaises(TypeError, sys.setrecursionlimit)
+ self.assertRaises(ValueError, sys.setrecursionlimit, -42)
+ sys.setrecursionlimit(10000)
+ self.assertEqual(sys.getrecursionlimit(), 10000)
+ sys.setrecursionlimit(oldlimit)
+
+ def test_getwindowsversion(self):
+ if hasattr(sys, "getwindowsversion"):
+ v = sys.getwindowsversion()
+ self.assert_(isinstance(v, tuple))
+ self.assertEqual(len(v), 5)
+ self.assert_(isinstance(v[0], int))
+ self.assert_(isinstance(v[1], int))
+ self.assert_(isinstance(v[2], int))
+ self.assert_(isinstance(v[3], int))
+ self.assert_(isinstance(v[4], str))
+
+ def test_dlopenflags(self):
+ if hasattr(sys, "setdlopenflags"):
+ self.assert_(hasattr(sys, "getdlopenflags"))
+ self.assertRaises(TypeError, sys.getdlopenflags, 42)
+ oldflags = sys.getdlopenflags()
+ self.assertRaises(TypeError, sys.setdlopenflags)
+ sys.setdlopenflags(oldflags+1)
+ self.assertEqual(sys.getdlopenflags(), oldflags+1)
+ sys.setdlopenflags(oldflags)
+
+ def test_refcount(self):
+ self.assertRaises(TypeError, sys.getrefcount)
+ c = sys.getrefcount(None)
+ n = None
+ self.assertEqual(sys.getrefcount(None), c+1)
+ del n
+ self.assertEqual(sys.getrefcount(None), c)
+ if hasattr(sys, "gettotalrefcount"):
+ self.assert_(isinstance(sys.gettotalrefcount(), int))
+
+ def test_getframe(self):
+ self.assertRaises(TypeError, sys._getframe, 42, 42)
+ self.assertRaises(ValueError, sys._getframe, 2000000000)
+ self.assert_(
+ SysModuleTest.test_getframe.im_func.func_code \
+ is sys._getframe().f_code
+ )
+
+ # sys._current_frames() is a CPython-only gimmick.
+ def test_current_frames(self):
+ have_threads = True
+ try:
+ import thread
+ except ImportError:
+ have_threads = False
+
+ if have_threads:
+ self.current_frames_with_threads()
+ else:
+ self.current_frames_without_threads()
+
+ # Test sys._current_frames() in a WITH_THREADS build.
+ def current_frames_with_threads(self):
+ import threading, thread
+ import traceback
+
+ # Spawn a thread that blocks at a known place. Then the main
+ # thread does sys._current_frames(), and verifies that the frames
+ # returned make sense.
+ entered_g = threading.Event()
+ leave_g = threading.Event()
+ thread_info = [] # the thread's id
+
+ def f123():
+ g456()
+
+ def g456():
+ thread_info.append(thread.get_ident())
+ entered_g.set()
+ leave_g.wait()
+
+ t = threading.Thread(target=f123)
+ t.start()
+ entered_g.wait()
+
+ # At this point, t has finished its entered_g.set(), although it's
+ # impossible to guess whether it's still on that line or has moved on
+ # to its leave_g.wait().
+ self.assertEqual(len(thread_info), 1)
+ thread_id = thread_info[0]
+
+ d = sys._current_frames()
+
+ main_id = thread.get_ident()
+ self.assert_(main_id in d)
+ self.assert_(thread_id in d)
+
+ # Verify that the captured main-thread frame is _this_ frame.
+ frame = d.pop(main_id)
+ self.assert_(frame is sys._getframe())
+
+ # Verify that the captured thread frame is blocked in g456, called
+ # from f123. This is a litte tricky, since various bits of
+ # threading.py are also in the thread's call stack.
+ frame = d.pop(thread_id)
+ stack = traceback.extract_stack(frame)
+ for i, (filename, lineno, funcname, sourceline) in enumerate(stack):
+ if funcname == "f123":
+ break
+ else:
+ self.fail("didn't find f123() on thread's call stack")
+
+ self.assertEqual(sourceline, "g456()")
+
+ # And the next record must be for g456().
+ filename, lineno, funcname, sourceline = stack[i+1]
+ self.assertEqual(funcname, "g456")
+ self.assert_(sourceline in ["leave_g.wait()", "entered_g.set()"])
+
+ # Reap the spawned thread.
+ leave_g.set()
+ t.join()
+
+ # Test sys._current_frames() when thread support doesn't exist.
+ def current_frames_without_threads(self):
+ # Not much happens here: there is only one thread, with artificial
+ # "thread id" 0.
+ d = sys._current_frames()
+ self.assertEqual(len(d), 1)
+ self.assert_(0 in d)
+ self.assert_(d[0] is sys._getframe())
+
+ def test_attributes(self):
+ self.assert_(isinstance(sys.api_version, int))
+ self.assert_(isinstance(sys.argv, list))
+ self.assert_(sys.byteorder in ("little", "big"))
+ self.assert_(isinstance(sys.builtin_module_names, tuple))
+ self.assert_(isinstance(sys.copyright, basestring))
+ self.assert_(isinstance(sys.exec_prefix, basestring))
+ self.assert_(isinstance(sys.executable, basestring))
+ self.assert_(isinstance(sys.hexversion, int))
+ self.assert_(isinstance(sys.maxint, int))
+ if test.test_support.have_unicode:
+ self.assert_(isinstance(sys.maxunicode, int))
+ self.assert_(isinstance(sys.platform, basestring))
+ self.assert_(isinstance(sys.prefix, basestring))
+ self.assert_(isinstance(sys.version, basestring))
+ vi = sys.version_info
+ self.assert_(isinstance(vi, tuple))
+ self.assertEqual(len(vi), 5)
+ self.assert_(isinstance(vi[0], int))
+ self.assert_(isinstance(vi[1], int))
+ self.assert_(isinstance(vi[2], int))
+ self.assert_(vi[3] in ("alpha", "beta", "candidate", "final"))
+ self.assert_(isinstance(vi[4], int))
+
+ def test_43581(self):
+ # Can't use sys.stdout, as this is a cStringIO object when
+ # the test runs under regrtest.
+ self.assert_(sys.__stdout__.encoding == sys.__stderr__.encoding)
+
+def test_main():
+ test.test_support.run_unittest(SysModuleTest)
+
+if __name__ == "__main__":
+ test_main()