upstream/ipython Files · IPython/kernel/tests/test_kernelmanager.py

Store timestamps for modules to autoreload...

Store timestamps for modules to autoreload Closes gh-4127 At present, autoreload compares the timestamps on .py and .pyc files. However, this can fail in a couple of ways (see gh-4127). With this change, it caches the mtime of the .py file when we loaded it. Some extra complexity is needed to store the mtime as soon as possible - we scan sys.modules when autoreload is loaded, and register a post_execute hook to check for newly imported modules after each cell.

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             test_kernelmanager.py
        
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      """Tests for the notebook kernel and session manager"""

      from subprocess import PIPE

      import time

      from unittest import TestCase

      from IPython.testing import decorators as dec

      from IPython.config.loader import Config

      from IPython.kernel import KernelManager

      class TestKernelManager(TestCase):

          def _get_tcp_km(self):

              c = Config()

              km = KernelManager(config=c)

              return km

          def _get_ipc_km(self):

              c = Config()

              c.KernelManager.transport = 'ipc'

              c.KernelManager.ip = 'test'

              km = KernelManager(config=c)

              return km

          def _run_lifecycle(self, km):

              km.start_kernel(stdout=PIPE, stderr=PIPE)

              self.assertTrue(km.is_alive())

              km.restart_kernel(now=True)

              self.assertTrue(km.is_alive())

              km.interrupt_kernel()

              self.assertTrue(isinstance(km, KernelManager))

              km.shutdown_kernel(now=True)

          def test_tcp_lifecycle(self):

              km = self._get_tcp_km()

              self._run_lifecycle(km)

          @dec.skip_win32

          def test_ipc_lifecycle(self):

              km = self._get_ipc_km()

              self._run_lifecycle(km)

          def test_get_connect_info(self):

              km = self._get_tcp_km()

              cinfo = km.get_connection_info()

              keys = sorted(cinfo.keys())

              expected = sorted([

                  'ip', 'transport',

                  'hb_port', 'shell_port', 'stdin_port', 'iopub_port', 'control_port',

                  'key', 'signature_scheme',

              ])

              self.assertEqual(keys, expected)

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				"""Tests for the notebook kernel and session manager"""

				from subprocess import PIPE
				import time
				from unittest import TestCase

				from IPython.testing import decorators as dec

				from IPython.config.loader import Config
				from IPython.kernel import KernelManager

				class TestKernelManager(TestCase):

				def _get_tcp_km(self):
				c = Config()
				km = KernelManager(config=c)
				return km

				def _get_ipc_km(self):
				c = Config()
				c.KernelManager.transport = 'ipc'
				c.KernelManager.ip = 'test'
				km = KernelManager(config=c)
				return km

				def _run_lifecycle(self, km):
				km.start_kernel(stdout=PIPE, stderr=PIPE)
				self.assertTrue(km.is_alive())
				km.restart_kernel(now=True)
				self.assertTrue(km.is_alive())
				km.interrupt_kernel()
				self.assertTrue(isinstance(km, KernelManager))
				km.shutdown_kernel(now=True)

				def test_tcp_lifecycle(self):
				km = self._get_tcp_km()
				self._run_lifecycle(km)

				@dec.skip_win32
				def test_ipc_lifecycle(self):
				km = self._get_ipc_km()
				self._run_lifecycle(km)

				def test_get_connect_info(self):
				km = self._get_tcp_km()
				cinfo = km.get_connection_info()
				keys = sorted(cinfo.keys())
				expected = sorted([
				'ip', 'transport',
				'hb_port', 'shell_port', 'stdin_port', 'iopub_port', 'control_port',
				'key', 'signature_scheme',
				])
				self.assertEqual(keys, expected)