156 lines
5.4 KiB
Python
156 lines
5.4 KiB
Python
# Run the _testcapi module tests (tests for the Python/C API): by defn,
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# these are all functions _testcapi exports whose name begins with 'test_'.
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from __future__ import with_statement
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import string
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import sys
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import time
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import random
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import unittest
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from test import test_support as support
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try:
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import thread
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import threading
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except ImportError:
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thread = None
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threading = None
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# Skip this test if the _testcapi module isn't available.
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_testcapi = support.import_module('_testcapi')
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class CAPITest(unittest.TestCase):
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def test_buildvalue_N(self):
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_testcapi.test_buildvalue_N()
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@unittest.skipUnless(threading, 'Threading required for this test.')
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class TestPendingCalls(unittest.TestCase):
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def pendingcalls_submit(self, l, n):
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def callback():
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#this function can be interrupted by thread switching so let's
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#use an atomic operation
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l.append(None)
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for i in range(n):
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time.sleep(random.random()*0.02) #0.01 secs on average
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#try submitting callback until successful.
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#rely on regular interrupt to flush queue if we are
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#unsuccessful.
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while True:
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if _testcapi._pending_threadfunc(callback):
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break;
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def pendingcalls_wait(self, l, n, context = None):
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#now, stick around until l[0] has grown to 10
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count = 0;
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while len(l) != n:
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#this busy loop is where we expect to be interrupted to
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#run our callbacks. Note that callbacks are only run on the
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#main thread
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if False and support.verbose:
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print "(%i)"%(len(l),),
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for i in xrange(1000):
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a = i*i
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if context and not context.event.is_set():
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continue
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count += 1
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self.assertTrue(count < 10000,
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"timeout waiting for %i callbacks, got %i"%(n, len(l)))
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if False and support.verbose:
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print "(%i)"%(len(l),)
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def test_pendingcalls_threaded(self):
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#do every callback on a separate thread
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n = 32 #total callbacks
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threads = []
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class foo(object):pass
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context = foo()
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context.l = []
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context.n = 2 #submits per thread
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context.nThreads = n // context.n
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context.nFinished = 0
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context.lock = threading.Lock()
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context.event = threading.Event()
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threads = [threading.Thread(target=self.pendingcalls_thread,
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args=(context,))
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for i in range(context.nThreads)]
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with support.start_threads(threads):
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self.pendingcalls_wait(context.l, n, context)
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def pendingcalls_thread(self, context):
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try:
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self.pendingcalls_submit(context.l, context.n)
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finally:
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with context.lock:
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context.nFinished += 1
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nFinished = context.nFinished
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if False and support.verbose:
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print "finished threads: ", nFinished
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if nFinished == context.nThreads:
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context.event.set()
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def test_pendingcalls_non_threaded(self):
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#again, just using the main thread, likely they will all be dispatched at
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#once. It is ok to ask for too many, because we loop until we find a slot.
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#the loop can be interrupted to dispatch.
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#there are only 32 dispatch slots, so we go for twice that!
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l = []
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n = 64
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self.pendingcalls_submit(l, n)
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self.pendingcalls_wait(l, n)
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class TestGetIndices(unittest.TestCase):
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def test_get_indices(self):
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self.assertEqual(_testcapi.get_indices(slice(10L, 20, 1), 100), (0, 10, 20, 1))
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self.assertEqual(_testcapi.get_indices(slice(10.1, 20, 1), 100), None)
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self.assertEqual(_testcapi.get_indices(slice(10, 20L, 1), 100), (0, 10, 20, 1))
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self.assertEqual(_testcapi.get_indices(slice(10, 20.1, 1), 100), None)
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self.assertEqual(_testcapi.get_indices(slice(10L, 20, 1L), 100), (0, 10, 20, 1))
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self.assertEqual(_testcapi.get_indices(slice(10.1, 20, 1L), 100), None)
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self.assertEqual(_testcapi.get_indices(slice(10, 20L, 1L), 100), (0, 10, 20, 1))
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self.assertEqual(_testcapi.get_indices(slice(10, 20.1, 1L), 100), None)
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@unittest.skipUnless(threading and thread, 'Threading required for this test.')
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class TestThreadState(unittest.TestCase):
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@support.reap_threads
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def test_thread_state(self):
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# some extra thread-state tests driven via _testcapi
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def target():
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idents = []
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def callback():
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idents.append(thread.get_ident())
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_testcapi._test_thread_state(callback)
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a = b = callback
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time.sleep(1)
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# Check our main thread is in the list exactly 3 times.
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self.assertEqual(idents.count(thread.get_ident()), 3,
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"Couldn't find main thread correctly in the list")
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target()
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t = threading.Thread(target=target)
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t.start()
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t.join()
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class Test_testcapi(unittest.TestCase):
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locals().update((name, getattr(_testcapi, name))
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for name in dir(_testcapi)
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if name.startswith('test_') and not name.endswith('_code'))
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def test_main():
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support.run_unittest(CAPITest, TestPendingCalls,
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TestThreadState, TestGetIndices, Test_testcapi)
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if __name__ == "__main__":
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test_main()
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