[test] Fix exception parsing in test262.

test/test262/testcfg.py

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 10 matching lines @@
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
 import imp
 import os
+import re
 import sys
 import tarfile
 
 
 from testrunner.local import statusfile
 from testrunner.local import testsuite
 from testrunner.local import utils
 from testrunner.objects import testcase
 
 DATA = os.path.join(os.path.dirname(os.path.abspath(__file__)), "data")
@@ skipping 136 matching lines @@
     else:
       includes = []
     return includes
 
   def GetSourceForTest(self, testcase):
     filename = os.path.join(self.testroot, testcase.path + ".js")
     with open(filename) as f:
       return f.read()
 
   def _ParseException(self, str):
-    for line in str.split("\n")[::-1]:
-      if line and not line[0].isspace() and ":" in line:
-        return line.split(":")[0]
-
+    # somefile:somelinenumber: someerror[: sometext]
+    match = re.search('^[^: ]*:[0-9]+: ([^ ]+?)($|: )', str, re.MULTILINE)
+    return match.group(1)
 
   def IsFailureOutput(self, testcase):
     output = testcase.output
     test_record = self.GetTestRecord(testcase)
     if output.exit_code != 0:
       return True
     if "negative" in test_record:
       if self._ParseException(output.stdout) != test_record["negative"]:
         return True
     return "FAILED!" in output.stdout
@@ skipping 10 matching lines @@
     # data folder.
     if os.path.exists(ARCHIVE) and not os.path.exists(DATA):
       print "Extracting archive..."
       tar = tarfile.open(ARCHIVE)
       tar.extractall(path=os.path.dirname(ARCHIVE))
       tar.close()
 
 
 def GetSuite(name, root):
   return Test262TestSuite(name, root)