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from test import support
import unittest
import dummy_threading as _threading
import time
class DummyThreadingTestCase(unittest.TestCase):
class TestThread(_threading.Thread):
def run(self):
global running
global sema
global mutex
# Uncomment if testing another module, such as the real 'threading'
# module.
#delay = random.random() * 2
delay = 0
if support.verbose:
print('task', self.name, 'will run for', delay, 'sec')
sema.acquire()
mutex.acquire()
running += 1
if support.verbose:
print(running, 'tasks are running')
mutex.release()
time.sleep(delay)
if support.verbose:
print('task', self.name, 'done')
mutex.acquire()
running -= 1
if support.verbose:
print(self.name, 'is finished.', running, 'tasks are running')
mutex.release()
sema.release()
def setUp(self):
self.numtasks = 10
global sema
sema = _threading.BoundedSemaphore(value=3)
global mutex
mutex = _threading.RLock()
global running
running = 0
self.threads = []
def test_tasks(self):
for i in range(self.numtasks):
t = self.TestThread(name="<thread %d>"%i)
self.threads.append(t)
t.start()
if support.verbose:
print('waiting for all tasks to complete')
for t in self.threads:
t.join()
if support.verbose:
print('all tasks done')
if __name__ == '__main__':
unittest.main()
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