Python test for agent exit request is flaky

agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): ======================================================================
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): FAIL: test_agent_exit_request_2_True (__main__.TestAgent)
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): ----------------------------------------------------------------------
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): Traceback (most recent call last):
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): File "/home/qt/.local/share/virtualenvs/tqtc-coin-ci-Qyp9o22n/lib/python3.6/site-packages/ddt.py", line 139, in wrapper
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): return func(self, *args, **kwargs)
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,867.867 INFO:run_tests.py:115(17866): File "/home/qt/work/qtqa/tqtc-coin-ci/src/tests/testlib.py", line 204, in <lambda>
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): return lambda *args, **kwargs: _asyncio_test_loop.run_until_complete(f(*args, **kwargs))
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): File "/usr/lib/python3.6/asyncio/base_events.py", line 473, in run_until_complete
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): return future.result()
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): File "/home/qt/work/qtqa/tqtc-coin-ci/src/tests/test_agent.py", line 599, in test_agent_exit_request
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): self.assertEqual(self.mockScheduler.lastResult.state, messages.AgentState.Interrupted)
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): AssertionError: 1 != 2
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): 
agent:2019/06/07 12:26:55 build.go:197: 2019-06-07 15:26:55,868.868 INFO:run_tests.py:115(17866): ----------------------------------------------------------------------