test: try to explicitly stop HTTP server at the end of tests
This prevents tracebacks during shutdown: Unhandled exception in thread started by <bound method Thread.__bootstrap of <Thread(Thread-1, stopped daemon 139820471113472)>> Traceback (most recent call last): File "soft/lib/python2.7/threading.py", line 774, in __bootstrap self.__bootstrap_inner() File "soft/lib/python2.7/threading.py", line 814, in __bootstrap_inner (self.name, _format_exc())) File "soft/lib/python2.7/traceback.py", line 242, in format_exc return ''.join(format_exception(etype, value, tb, limit)) File "soft/lib/python2.7/traceback.py", line 141, in format_exception list = list + format_tb(tb, limit) File "soft/lib/python2.7/traceback.py", line 76, in format_tb return format_list(extract_tb(tb, limit)) File "soft/lib/python2.7/traceback.py", line 100, in extract_tb linecache.checkcache(filename) TypeError: 'NoneType' object is not callable Also rename the method because this is not longer *Z*server. This waitress close() API is not public part of API, so we still ignore the case where the server thread does not stop after 5 seconds. This happens if some HTTP connections are still open at the end of test.
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