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

Important changes to simplify traitlets....

Important changes to simplify traitlets. Some aspect of traitlets were a bit too magical for us. Thus, we have simplified certain things to make it more straitforward: * Default values are always validated, but now, this is done when the HasTraitlets.__new__ is called. We used to do this the first time __get__ was called. * The klass argument of Type and Instance traitlets must be a class. Unlike enthought.traits, we are no longer accepting class names as str or instances. * The args and kw arguments to Instance.__init__ are now handled in better manner, but that is quite different from enthought.traits. * More tests of edge cases.

Brian Granger - - Load All Authors

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      #!/usr/bin/env python

      # encoding: utf-8

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2008  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      # Tell nose to skip this module

      __test__ = {}

      import tempfile

      import os, sys

      from twisted.internet import reactor

      from twisted.trial import unittest

      from IPython.kernel.error import FileTimeoutError

      from IPython.kernel.twistedutil import wait_for_file

      #-----------------------------------------------------------------------------

      # Tests

      #-----------------------------------------------------------------------------

      class TestWaitForFile(unittest.TestCase):

          def test_delay(self):

              filename = tempfile.mktemp()

              def _create_file():

                  open(filename,'w').write('####')

              dcall = reactor.callLater(0.5, _create_file)

              d = wait_for_file(filename,delay=0.1)

              d.addCallback(lambda r: self.assert_(r))

              def _cancel_dcall(r):

                  if dcall.active():

                      dcall.cancel()

              d.addCallback(_cancel_dcall)

              return d

          def test_timeout(self):

              filename = tempfile.mktemp()

              d = wait_for_file(filename,delay=0.1,max_tries=1)

              d.addErrback(lambda f: self.assertRaises(FileTimeoutError,f.raiseException))

              return d

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				#!/usr/bin/env python
				# encoding: utf-8

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				# Tell nose to skip this module
				__test__ = {}

				import tempfile
				import os, sys

				from twisted.internet import reactor
				from twisted.trial import unittest

				from IPython.kernel.error import FileTimeoutError
				from IPython.kernel.twistedutil import wait_for_file

				#-----------------------------------------------------------------------------
				# Tests
				#-----------------------------------------------------------------------------

				class TestWaitForFile(unittest.TestCase):

				def test_delay(self):
				filename = tempfile.mktemp()
				def _create_file():
				open(filename,'w').write('####')
				dcall = reactor.callLater(0.5, _create_file)
				d = wait_for_file(filename,delay=0.1)
				d.addCallback(lambda r: self.assert_(r))
				def _cancel_dcall(r):
				if dcall.active():
				dcall.cancel()
				d.addCallback(_cancel_dcall)
				return d

				def test_timeout(self):
				filename = tempfile.mktemp()
				d = wait_for_file(filename,delay=0.1,max_tries=1)
				d.addErrback(lambda f: self.assertRaises(FileTimeoutError,f.raiseException))
				return d