Lib/test/test___future__.py

   1 #! /usr/bin/env python
   2 from test_support import verbose, verify
   3 from types import TupleType, StringType, IntType
   4 import __future__
   5
   6 GOOD_SERIALS = ("alpha", "beta", "candidate", "final")
   7
   8 features = [x for x in dir(__future__) if x[:1] != "_"]
   9 for feature in features:
  10     value = getattr(__future__, feature)
  11     if verbose:
  12         print "Checking __future__ ", feature, "value", value
  13
  14     optional = value.getOptionalRelease()
  15     mandatory = value.getMandatoryRelease()
  16
  17     verify(type(optional) is TupleType, "optional isn't tuple")
  18     verify(len(optional) == 5, "optional isn't 5-tuple")
  19     major, minor, micro, level, serial = optional
  20     verify(type(major) is IntType, "optional major isn't int")
  21     verify(type(minor) is IntType, "optional minor isn't int")
  22     verify(type(micro) is IntType, "optional micro isn't int")
  23     verify(type(level) is StringType, "optional level isn't string")
  24     verify(level in GOOD_SERIALS,
  25            "optional level string has unknown value")
  26     verify(type(serial) is IntType, "optional serial isn't int")
  27
  28     verify(type(mandatory) is TupleType or
  29            mandatory is None, "mandatory isn't tuple or None")
  30     if mandatory is not None:
  31         verify(len(mandatory) == 5, "mandatory isn't 5-tuple")
  32         major, minor, micro, level, serial = mandatory
  33         verify(type(major) is IntType, "mandatory major isn't int")
  34         verify(type(minor) is IntType, "mandatory minor isn't int")
  35         verify(type(micro) is IntType, "mandatory micro isn't int")
  36         verify(type(level) is StringType, "mandatory level isn't string")
  37         verify(level in GOOD_SERIALS,
  38                "mandatory serial string has unknown value")
  39         verify(type(serial) is IntType, "mandatory serial isn't int")
  40         verify(optional < mandatory,
  41                "optional not less than mandatory, and mandatory not None")