Reapply 7581, Fix tools/test.py to allow CTRL+C to work correctly again.

Buildbot now has python 2.6

Also, remove some semicolons.
Review URL: http://codereview.chromium.org/6871007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/testcfg.py

@@ -107,7 +107,7 @@ class MjsunitTestCase(test.TestCase):
     return self_script
 
   def AfterRun(self, result):
-    if self.self_script and (not result.HasPreciousOutput()):
+    if self.self_script and (not result or (not result.HasPreciousOutput())):
       test.CheckedUnlink(self.self_script)
 
 class MjsunitTestConfiguration(test.TestConfiguration):

test/sputnik/testcfg.py

@@ -57,7 +57,7 @@ class SputnikTestCase(test.TestCase):
 
   def AfterRun(self, result):
     # Dispose the temporary file if everything looks okay.
-    if not result.HasPreciousOutput(): self.tmpfile.Dispose()
+    if result is None or not result.HasPreciousOutput(): self.tmpfile.Dispose()
     self.tmpfile = None
 
   def GetCommand(self):

tools/test.py

@@ -117,6 +117,8 @@ class ProgressIndicator(object):
         start = time.time()
         output = case.Run()
         case.duration = (time.time() - start)
+      except BreakNowException:
+        self.terminate = True
       except IOError, e:
         assert self.terminate
         return
@@ -318,6 +320,12 @@ PROGRESS_INDICATORS = {
 # --- F r a m e w o r k ---
 # -------------------------
 
+class BreakNowException(Exception):
+  def __init__(self, value):
+    self.value = value
+  def __str__(self):
+    return repr(self.value)
+
 
 class CommandOutput(object):
 
@@ -379,9 +387,12 @@ class TestCase(object):
 
   def Run(self):
     self.BeforeRun()
-    result = "exception"
+    result = None
     try:
       result = self.RunCommand(self.GetCommand())
+    except:
+      self.terminate = True
+      raise BreakNowException("Used pressed CTRL+C or IO went wrong")
     finally:
       self.AfterRun(result)
     return result
@@ -423,7 +434,7 @@ class TestOutput(object):
              self.output.exit_code != -signal.SIGABRT
 
   def HasTimedOut(self):
-    return self.output.timed_out;
+    return self.output.timed_out
 
   def HasFailed(self):
     execution_failed = self.test.DidFail(self.output)
@@ -702,7 +713,12 @@ class Context(object):
 
 def RunTestCases(cases_to_run, progress, tasks):
   progress = PROGRESS_INDICATORS[progress](cases_to_run)
-  return progress.Run(tasks)
+  result = 0
+  try:
+    result = progress.Run(tasks)
+  except Exception, e:
+    print "\n", e
+  return result
 
 
 def BuildRequirements(context, requirements, mode, scons_flags):
@@ -1339,11 +1355,11 @@ def ShardTests(tests, options):
     print "shard-run not a valid number, should be in [1:shard-count]"
     print "defaulting back to running all tests"
     return tests
-  count = 0;
+  count = 0
   shard = []
   for test in tests:
     if count % options.shard_count == options.shard_run - 1:
-      shard.append(test);
+      shard.append(test)
     count += 1
   return shard