old_contents: #!/usr/bin/env python
  
  """Tests for pyani package multiprocessing runs
  
  These tests are intended to be run using the nose package
  (see https://nose.readthedocs.org/en/latest/).
  """
  
  
  from nose.tools import assert_equal
  from pyani import run_multiprocessing
  
  
  # Test ANIm command-lines
  # One pairwise comparison
  def test_multiprocessing_run():
      """Test basic multiprocessing function
      """
      cmdlist = ['for i in %s; do echo "Thread %d: value ${i}"; done' %
                 (' '.join([str(e) for e in range(v)]), v) for
                 v in range(5)]
      run_multiprocessing.multiprocessing_run(cmdlist)
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  """test_multiprocessing.py
  
  Test run_multiprocessing.py module.
  
  These tests are intended to be run from the repository root using:
  
  nosetests -v
  
  print() statements will be caught by nosetests unless there is an
  error. They can also be recovered with the -s option.
  
  (c) The James Hutton Institute 2017
  Author: Leighton Pritchard
  
  Contact:
  leighton.pritchard@hutton.ac.uk
  
  Leighton Pritchard,
  Information and Computing Sciences,
  James Hutton Institute,
  Errol Road,
  Invergowrie,
  Dundee,
  DD6 9LH,
  Scotland,
  UK
  
  The MIT License
  
  Copyright (c) 2017 The James Hutton Institute
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  """
  
  import os
  import unittest
  
  from nose.tools import (assert_equal, )
  
  from pyani import (run_multiprocessing, pyani_jobs, anib)
  
  
  class TestMultiprocessing(unittest.TestCase):
  
      """Class defining tests of pyani's multiprocessing module."""
  
      def setUp(self):
          """Define parameters and arguments for tests."""
          self.cmdlist = ['for i in %s; do echo "Thread %d: value ${i}"; done' %
                          (' '.join([str(e) for e in range(v)]), v) for
                          v in range(5)]
          self.cmds = ['ls -ltrh', 'echo ${PWD}']
          self.seqdir = os.path.join('tests', 'test_input', 'sequences')
          self.outdir = os.path.join('tests', 'test_output', 'multiprocessing')
          self.infiles = [os.path.join(self.seqdir, fname) for fname in
                          os.listdir(self.seqdir)][:2]
          self.fraglen = 1000
          os.makedirs(self.outdir, exist_ok=True)
  
      def test_multiprocessing_run(self):
          """multiprocessing() runs basic jobs."""
          result = run_multiprocessing.multiprocessing_run(self.cmdlist)
          assert_equal(0, result)
  
      def test_cmdsets(self):
          """module builds command sets."""
          job1 = pyani_jobs.Job('dummy_with_dependency', self.cmds[0])
          job2 = pyani_jobs.Job('dummy_dependency', self.cmds[1])
          job1.add_dependency(job2)
          cmdsets = run_multiprocessing.populate_cmdsets(job1, list(), depth=1)
          target = [{cmd} for cmd in self.cmds]
          assert_equal(cmdsets, target)
  
      def test_dependency_graph_run(self):
          """module runs dependency graph."""
          fragresult = anib.fragment_fasta_files(self.infiles, self.outdir,
                                                 self.fraglen)
          blastcmds = anib.make_blastcmd_builder("ANIblastall", self.outdir)
          jobgraph = anib.make_job_graph(self.infiles, fragresult[0],
                                         blastcmds)
          result = run_multiprocessing.run_dependency_graph(jobgraph)
          assert_equal(0, result)
  
subject: bring over multiprocessing tests from v0.2.7