upstream/ipython Files · IPython/parallel/tests/test_mongodb.py

Merge pull request from minrk/ar_sugar...

Merge pull request from minrk/ar_sugar Add sugar methods/properties to AsyncResult that are generically useful: * `ar.wall_time` = received - submitted * `ar.serial_time` = sum of serial computation time * `ar.elapsed` = time since submission (wall_time if done) * `ar.progress` = (int) number of sub-tasks that have completed * `len(ar)` = # of tasks * `ar.wait_interactive()`: prints progress These are simple methods derived from the metadata/timestamps already created. But I've been persuaded by @wesm's practice of including simple methods that do useful (and/or cool) things. This also required/revealed some minor fixes/cleanup to clear_output in some cases: * dedent base `core.displaypub.clear_output`, so it's actually defined in the class * clear_output publishes `'\r\b'`, so it will clear terminal-like frontends that don't understand full clear_output behavior. * `core.display.clear_output()` still works, even outside an IPython session. Added a new notebook that shows how to use these new methods and how to do simple animations/progress bars using `clear_output()`. Added `Client.spin_thread(interval)` / `stop_spin_thread()` for running spin in a background thread, to keep zmq queue clear. This can be used to ensure that timing information is as accurate as possible (at the cost of having a background thread active).

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        MinRK
    
update recently changed modules with Authors in docstring

              r4018
            
      """Tests for mongodb backend

      Authors:

      * Min RK

      """

        MinRK
    
various db backend fixes...

              r3875
            
      #-------------------------------------------------------------------------------

      #  Copyright (C) 2011  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

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

      from nose import SkipTest

      from pymongo import Connection

      from IPython.parallel.controller.mongodb import MongoDB

      from . import test_db

      try:

          c = Connection()

      except Exception:

          c=None

      class TestMongoBackend(test_db.TestDictBackend):

          """MongoDB backend tests"""

          def create_db(self):

              try:

                  return MongoDB(database='iptestdb', _connection=c)

              except Exception:

                  raise SkipTest("Couldn't connect to mongodb")

      def teardown(self):

          if c is not None:

              c.drop_database('iptestdb')

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MinRK update recently changed modules with Authors in docstring	r4018	"""Tests for mongodb backend

		Authors:

		* Min RK
		"""
MinRK various db backend fixes...	r3875
		#-------------------------------------------------------------------------------
		# Copyright (C) 2011 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
		#-------------------------------------------------------------------------------

		from nose import SkipTest

		from pymongo import Connection
		from IPython.parallel.controller.mongodb import MongoDB

		from . import test_db

		try:
		c = Connection()
		except Exception:
		c=None

		class TestMongoBackend(test_db.TestDictBackend):
		"""MongoDB backend tests"""

		def create_db(self):
		try:
		return MongoDB(database='iptestdb', _connection=c)
		except Exception:
		raise SkipTest("Couldn't connect to mongodb")

		def teardown(self):
		if c is not None:
		c.drop_database('iptestdb')