Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v8plus / lib / python2.4 / test / test_imp.py

import imp
from test.test_support import TestFailed, TestSkipped
try:
   import thread
except ImportError:
   raise TestSkipped("test only valid when thread support is available")

def verify_lock_state(expected):
   if imp.lock_held() != expected:
       raise TestFailed("expected imp.lock_held() to be %r" % expected)

def testLock():
   LOOPS = 50

   # The import lock may already be held, e.g. if the test suite is run
   # via "import test.autotest".
   lock_held_at_start = imp.lock_held()
   verify_lock_state(lock_held_at_start)

   for i in range(LOOPS):
       imp.acquire_lock()
       verify_lock_state(True)

   for i in range(LOOPS):
       imp.release_lock()

   # The original state should be restored now.
   verify_lock_state(lock_held_at_start)

   if not lock_held_at_start:
       try:
           imp.release_lock()
       except RuntimeError:
           pass
       else:
           raise TestFailed("release_lock() without lock should raise "
                            "RuntimeError")

def test_main():
   testLock()

if __name__ == "__main__":
   test_main()