59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
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import logging
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from multiprocessing import Process
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import sys
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from tendo.singleton import SingleInstance, SingleInstanceException
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logger = logging.getLogger("tendo.singleton.test")
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logger.addHandler(logging.StreamHandler())
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logger.setLevel(logging.DEBUG)
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def f(name):
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tmp = logger.level
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logger.setLevel(logging.CRITICAL) # we do not want to see the warning
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try:
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me2 = SingleInstance(flavor_id=name) # noqa
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except SingleInstanceException:
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sys.exit(-1)
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logger.setLevel(tmp)
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pass
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def test_1():
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me = SingleInstance(flavor_id="test-1")
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del me # now the lock should be removed
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assert True
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def test_2():
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p = Process(target=f, args=("test-2",))
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p.start()
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p.join()
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# the called function should succeed
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assert p.exitcode == 0, "%s != 0" % p.exitcode
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def test_3():
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me = SingleInstance(flavor_id="test-3") # noqa -- me should still kept
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p = Process(target=f, args=("test-3",))
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p.start()
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p.join()
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# the called function should fail because we already have another
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# instance running
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assert p.exitcode != 0, "%s != 0 (2nd execution)" % p.exitcode
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# note, we return -1 but this translates to 255 meanwhile we'll
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# consider that anything different from 0 is good
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p = Process(target=f, args=("test-3",))
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p.start()
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p.join()
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# the called function should fail because we already have another
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# instance running
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assert p.exitcode != 0, "%s != 0 (3rd execution)" % p.exitcode
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def test_4():
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lockfile = '/tmp/foo.lock'
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me = SingleInstance(lockfile=lockfile)
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assert me.lockfile == lockfile
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