lib/subunit/python/testtools/utils.py

   1 # Copyright (c) 2008 Jonathan M. Lange. See LICENSE for details.
   2
   3 """Utilities for dealing with stuff in unittest."""
   4
   5
   6 import sys
   7
   8 __metaclass__ = type
   9 __all__ = [
  10     'iterate_tests',
  11     ]
  12
  13
  14 if sys.version_info > (3, 0):
  15     def _u(s):
  16         """Replacement for u'some string' in Python 3."""
  17         return s
  18     def _b(s):
  19         """A byte literal."""
  20         return s.encode("latin-1")
  21     advance_iterator = next
  22 else:
  23     def _u(s):
  24         return unicode(s, "latin-1")
  25     def _b(s):
  26         return s
  27     advance_iterator = lambda it: it.next()
  28
  29
  30 def iterate_tests(test_suite_or_case):
  31     """Iterate through all of the test cases in 'test_suite_or_case'."""
  32     try:
  33         suite = iter(test_suite_or_case)
  34     except TypeError:
  35         yield test_suite_or_case
  36     else:
  37         for test in suite:
  38             for subtest in iterate_tests(test):
  39                 yield subtest