upstream/ipython Files · IPython/frontend/tests/test_process.py

Fixing a nasty bug in test_frontend.py that was leading to all sorts...

Fixing a nasty bug in test_frontend.py that was leading to all sorts of weird problems with our test suite like random test errors and unhandled errors in Deferreds. There are 3 problems with this test module: 1. Doesn't use twisted.trial.unittest.TestCase as a base class 2. Test methods don't return Deferreds 3. One test method actually has an unhandled error in a Deferred The only thing I have don't is put a @skip decorator on test_error_callback_added_to_execute to hide 3. All of these things still need to be fixed though. But our tests now pass.

Brian Granger - - Load All Authors

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             test_process.py
        
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      # encoding: utf-8

      """

      Test process execution and IO redirection.

      """

      __docformat__ = "restructuredtext en"

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

      #  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.

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

      from cStringIO import StringIO

      from time import sleep

      import sys

      from IPython.frontend._process import PipedProcess

      from IPython.testing import decorators as testdec

      def test_capture_out():

          """ A simple test to see if we can execute a process and get the output.

          """

          s = StringIO()

          p = PipedProcess('echo 1', out_callback=s.write, )

          p.start()

          p.join()

          result = s.getvalue().rstrip()

          assert result == '1'

      # FIXME

      @testdec.skip("This doesn't work under Windows")

      def test_io():

          """ Checks that we can send characters on stdin to the process.

          """

          s = StringIO()

          p = PipedProcess(sys.executable + ' -c "a = raw_input(); print a"', 

                                  out_callback=s.write, )

          p.start()

          test_string = '12345\n'

          while not hasattr(p, 'process'):

              sleep(0.1)

          p.process.stdin.write(test_string)

          p.join()

          result = s.getvalue()

          assert result == test_string

      def test_kill():

          """ Check that we can kill a process, and its subprocess.

          """

          s = StringIO()

          p = PipedProcess(sys.executable + ' -c "a = raw_input();"', 

                                  out_callback=s.write, )

          p.start()

          while not hasattr(p, 'process'):

              sleep(0.1)

          p.process.kill() 

          assert p.process.poll() is not None

      if __name__ == '__main__':

          test_capture_out()

          test_io()

          test_kill()

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				# encoding: utf-8
				"""
				Test process execution and IO redirection.
				"""

				__docformat__ = "restructuredtext en"

				#-------------------------------------------------------------------------------
				# 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.
				#-------------------------------------------------------------------------------

				from cStringIO import StringIO
				from time import sleep
				import sys

				from IPython.frontend._process import PipedProcess
				from IPython.testing import decorators as testdec

				def test_capture_out():
				""" A simple test to see if we can execute a process and get the output.
				"""
				s = StringIO()
				p = PipedProcess('echo 1', out_callback=s.write, )
				p.start()
				p.join()
				result = s.getvalue().rstrip()
				assert result == '1'

				# FIXME
				@testdec.skip("This doesn't work under Windows")
				def test_io():
				""" Checks that we can send characters on stdin to the process.
				"""
				s = StringIO()
				p = PipedProcess(sys.executable + ' -c "a = raw_input(); print a"',
				out_callback=s.write, )
				p.start()
				test_string = '12345\n'
				while not hasattr(p, 'process'):
				sleep(0.1)
				p.process.stdin.write(test_string)
				p.join()
				result = s.getvalue()
				assert result == test_string


				def test_kill():
				""" Check that we can kill a process, and its subprocess.
				"""
				s = StringIO()
				p = PipedProcess(sys.executable + ' -c "a = raw_input();"',
				out_callback=s.write, )
				p.start()
				while not hasattr(p, 'process'):
				sleep(0.1)
				p.process.kill()
				assert p.process.poll() is not None


				if __name__ == '__main__':
				test_capture_out()
				test_io()
				test_kill()