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51 lines
1.5 KiB
51 lines
1.5 KiB
import os
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import sys
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import shutil
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import time
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from subprocess import Popen, PIPE
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from tempfile import mkdtemp
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def _launch(extra_env):
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env = os.environ.copy()
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env.update(extra_env)
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return Popen([sys.executable, '-c',
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'from jupyter_client.kernelapp import main; main()'],
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env=env, stderr=PIPE)
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WAIT_TIME = 10
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POLL_FREQ = 10
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def test_kernelapp_lifecycle():
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# Check that 'jupyter kernel' starts and terminates OK.
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runtime_dir = mkdtemp()
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startup_dir = mkdtemp()
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started = os.path.join(startup_dir, 'started')
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try:
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p = _launch({'JUPYTER_RUNTIME_DIR': runtime_dir,
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'JUPYTER_CLIENT_TEST_RECORD_STARTUP_PRIVATE': started,
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})
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# Wait for start
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for _ in range(WAIT_TIME * POLL_FREQ):
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if os.path.isfile(started):
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break
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time.sleep(1 / POLL_FREQ)
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else:
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raise AssertionError("No started file created in {} seconds"
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.format(WAIT_TIME))
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# Connection file should be there by now
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files = os.listdir(runtime_dir)
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assert len(files) == 1
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cf = files[0]
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assert cf.startswith('kernel')
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assert cf.endswith('.json')
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# Send SIGTERM to shut down
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p.terminate()
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_, stderr = p.communicate(timeout=WAIT_TIME)
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assert cf in stderr.decode('utf-8', 'replace')
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finally:
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shutil.rmtree(runtime_dir)
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shutil.rmtree(startup_dir)
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