[Python-checkins] CVS: python/dist/src/Lib/test test_pow.py,1.8,1.9

[Fred L. Drake]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv8624/Lib/test

Modified Files:
	test_pow.py 
Log Message:
Added a regression test for the negation-of-exponentiation optimization
bug from compile.c.  (SF bug #456756.)


Index: test_pow.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_pow.py,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** test_pow.py	2001/07/12 12:51:22	1.8
--- test_pow.py	2001/08/30 18:56:30	1.9
***************
*** 2,5 ****
--- 2,8 ----
  import test_support
  
+ from test_support import verify
+ 
+ 
  def powtest(type):
      if type != float:
***************
*** 76,79 ****
--- 79,90 ----
  print 'Testing floating point mode...'
  powtest(float)
+ 
+ # Make sure '**' does the right thing; these form a
+ # regression test for SourceForge bug #456756.
+ #
+ verify((-2 ** 2) == -4,
+        "expected '-2 ** 2' to be -4, got %s" % (-2 ** 2))
+ verify(((-2) ** 2) == 4,
+        "expected '(-2) ** 2' to be 4, got %s" % ((-2) ** 2))
  
  # Other tests-- not very systematic