make cdb test using SYSTEMROOT case-insensitive

snapshot/win/end_to_end_test.py

 #!/usr/bin/env python
 
 # Copyright 2015 The Crashpad Authors. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
@@ skipping 109 matching lines @@
 
   def __init__(self, cdb_path, dump_path, command):
     # Run a command line that loads the dump, runs the specified cdb command,
     # and then quits, and capturing stdout.
     self.out = subprocess.check_output([
         cdb_path,
         '-z', dump_path,
         '-c', command + ';q'
     ])
 
-  def Check(self, pattern, message):
-    match_obj = re.search(pattern, self.out)
+  def Check(self, pattern, message, re_flags=0):
+    match_obj = re.search(pattern, self.out, re_flags)
     if match_obj:
       # Matched. Consume up to end of match.
       self.out = self.out[match_obj.end(0):]
       print 'ok - %s' % message
     else:
       print >>sys.stderr, '-' * 80
       print >>sys.stderr, 'FAILED - %s' % message
       print >>sys.stderr, '-' * 80
       print >>sys.stderr, 'did not match:\n  %s' % pattern
       print >>sys.stderr, '-' * 80
@@ skipping 14 matching lines @@
       'crashy_program!crashpad::`anonymous namespace\'::SomeCrashyFunction',
       'exception at correct location')
 
   out = CdbRun(cdb_path, dump_path, '!peb')
   out.Check(r'PEB at', 'found the PEB')
   out.Check(r'Ldr\.InMemoryOrderModuleList:.*\d+ \. \d+', 'PEB_LDR_DATA saved')
   out.Check(r'Base TimeStamp                     Module', 'module list present')
   pipe_name_escaped = pipe_name.replace('\\', '\\\\')
   out.Check(r'CommandLine: *\'.*crashy_program.exe *' + pipe_name_escaped,
             'some PEB data is correct')
-  out.Check(r'SystemRoot=C:\\Windows', 'some of environment captured')
+  out.Check(r'SystemRoot=C:\\Windows', 'some of environment captured',

[Mark Mentovai, 2015/10/09 23:40:51]

Is this the right number of backslashes, too?

[scottmg, 2015/10/09 23:44:37]

I believe so. The r'' takes care of not needing any extras in the string
representation, but \ is still a regex special character, so it needs to be \\
to represent a single \.

+            re.IGNORECASE)
 
   out = CdbRun(cdb_path, dump_path, '!teb')
   out.Check(r'TEB at', 'found the TEB')
   out.Check(r'ExceptionList:\s+[0-9a-fA-F]+', 'some valid teb data')
   out.Check(r'LastErrorValue:\s+2', 'correct LastErrorValue')
 
   out = CdbRun(cdb_path, dump_path, '!gle')
   out.Check('LastErrorValue: \(Win32\) 0x2 \(2\) - The system cannot find the '
             'file specified.', '!gle gets last error')
   out.Check('LastStatusValue: \(NTSTATUS\) 0xc000000f - {File Not Found}  The '
@@ skipping 33 matching lines @@
 
     RunTests(cdb_path, dump_path, pipe_name)
 
     return 0
   finally:
     CleanUpTempDirs()
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))