Lib/test/test_support.py

   1 # Python test set -- supporting definitions.
   2
   3 TestFailed = 'test_support -- test failed'      # Exception
   4
   5 verbose = 1                             # Flag set to 0 by regrtest.py
   6
   7 def unload(name):
   8         import sys
   9         try:
  10                 del sys.modules[name]
  11         except KeyError:
  12                 pass
  13
  14 def forget(modname):
  15         unload(modname)
  16         import sys, os
  17         for dirname in sys.path:
  18                 try:
  19                         os.unlink(os.path.join(dirname, modname + '.pyc'))
  20                 except os.error:
  21                         pass
  22
  23 FUZZ = 1e-6
  24
  25 def fcmp(x, y): # fuzzy comparison function
  26         if type(x) == type(0.0) or type(y) == type(0.0):
  27                 try:
  28                         x, y = coerce(x, y)
  29                         fuzz = (abs(x) + abs(y)) * FUZZ
  30                         if abs(x-y) <= fuzz:
  31                                 return 0
  32                 except:
  33                         pass
  34         elif type(x) == type(y) and type(x) in (type(()), type([])):
  35                 for i in range(min(len(x), len(y))):
  36                         outcome = fcmp(x[i], y[i])
  37                         if outcome <> 0:
  38                                 return outcome
  39                 return cmp(len(x), len(y))
  40         return cmp(x, y)
  41
  42 TESTFN = '@test' # Filename used for testing
  43 from os import unlink
  44
  45 def findfile(file, here=__file__):
  46         import os
  47         if os.path.isabs(file):
  48                 return file
  49         import sys
  50         path = sys.path
  51         path = [os.path.dirname(here)] + path
  52         for dn in path:
  53                 fn = os.path.join(dn, file)
  54                 if os.path.exists(fn): return fn
  55         return file