Added new script run_individual_tests.py as a workaround to the nosetests issues under Windows

theano/tests/run_individual_tests.py

+#!/usr/bin/env python
+
+
+__authors__   = "Olivier Delalleau"
+__contact__   = "delallea@iro"
+
+
+"""
+Run this script to run tests individually.
+
+This script performs three tasks:
+    1. Run `nosetests --collect-only --with-id` to collect test IDs
+    2. Run `nosetests --with-id X` with for X = 1 to total number of tests
+    3. Run `nosetests --failed` to re-run only tests that failed
+        => The output of this 3rd step is the one you should care about
+
+One reason to use this script is if you are a Windows user, and see errors like
+"Not enough storage is available to process this command" when trying to simply
+run `nosetests` in your Theano installation directory.
+By using this script, nosetests is run on each test individually, which is
+slower but should at least let you run the test suite.
+
+Note that this script is experimental and might not actually be running the
+whole test suite (it is suspicious that the first step reports more tests than
+the amount of tests found in the resulting '.noseids' file).
+"""
+
+
+import cPickle, os, subprocess, sys
+
+import theano
+
+
+def main():
+    theano_install_dir = os.path.join(os.path.dirname(theano.__file__), '..')
+    os.chdir(theano_install_dir)
+    # It seems like weird things happen if we keep the same IDs file around...
+    # (the number of test items in it changes from one run to another)
+    if os.path.isfile('.noseids'):
+        os.remove('.noseids')
+    # Collect test IDs.
+    assert subprocess.call(['nosetests', '--collect-only', '--with-id']) == 0
+    data = cPickle.load(
+            open(os.path.join(theano_install_dir, '.noseids'), 'rb'))
+    ids = data['ids']
+    n_tests = len(ids)
+    # Run tests.
+    for test_id in xrange(1, n_tests + 1):
+        subprocess.call(['nosetests', '-v', '--with-id', str(test_id)])
+    # Re-run only failed tests
+    subprocess.call(['nosetests', '-v', '--failed'])
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())
+