Initial Fork from https://bitbucket.org/raphaelmutschler/calibreserver/

lib/tornado/test/util.py

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+from __future__ import absolute_import, division, print_function, with_statement
+
+import os
+import sys
+
+# Encapsulate the choice of unittest or unittest2 here.
+# To be used as 'from tornado.test.util import unittest'.
+if sys.version_info >= (2, 7):
+    import unittest
+else:
+    import unittest2 as unittest
+
+skipIfNonUnix = unittest.skipIf(os.name != 'posix' or sys.platform == 'cygwin',
+                                "non-unix platform")
+
+# travis-ci.org runs our tests in an overworked virtual machine, which makes
+# timing-related tests unreliable.
+skipOnTravis = unittest.skipIf('TRAVIS' in os.environ,
+                               'timing tests unreliable on travis')