Added libbe.TESTING (defaults to False).

This flag allows us to skip unittest and testsuite declaration if we
woln't need them.  It speeds up simple be calls a suprising amount.
With Testing=True (the old behavior):
  wking@thor:be.wtk$ time ./be > /dev/null

  real    0m0.393s
  user    0m0.340s
  sys     0m0.048s
With TESTING=False (the new behavior):
  be.wtk$ time ./be > /dev/null

  real    0m0.216s
  user    0m0.152s
  sys     0m0.064s

This adjustment was inspired by Jakub Wilk's Debian bug:
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=559295

1 files changed, 8 insertions, 5 deletions

diff --git a/libbe/darcs.py b/libbe/darcs.py
index 059452c..d94eaef 100644
--- a/libbe/darcs.py
+++ b/libbe/darcs.py
@@ -28,10 +28,12 @@ try: # import core module, Python >= 2.5
 except ImportError: # look for non-core module
     from elementtree import ElementTree
 from xml.sax.saxutils import unescape
-import doctest
-import unittest
 
+import libbe
 import vcs
+if libbe.TESTING == True:
+    import doctest
+    import unittest
 
 
 def new():
@@ -183,7 +185,8 @@ class Darcs(vcs.VCS):
         except IndexError:
             return None
     
-vcs.make_vcs_testcase_subclasses(Darcs, sys.modules[__name__])
+if libbe.TESTING == True:
+    vcs.make_vcs_testcase_subclasses(Darcs, sys.modules[__name__])
 
-unitsuite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
-suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])
+    unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
+    suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])