Uploaded Test files

venv/Lib/site-packages/jupyter_client/tests/test_kernelapp.py

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