Refactoring: Use fake cwd in release script tests.

tools/push-to-trunk/push_to_trunk.py

 #!/usr/bin/env python
 # Copyright 2013 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
@@ skipping 22 matching lines @@
 import urllib2
 
 from common_includes import *
 
 TRUNKBRANCH = "TRUNKBRANCH"
 
 CONFIG = {
   BRANCHNAME: "prepare-push",
   TRUNKBRANCH: "trunk-push",
   PERSISTFILE_BASENAME: "/tmp/v8-push-to-trunk-tempfile",
-  DOT_GIT_LOCATION: ".git",
   VERSION_FILE: "src/version.cc",
   CHANGELOG_FILE: "ChangeLog",
   CHANGELOG_ENTRY_FILE: "/tmp/v8-push-to-trunk-tempfile-changelog-entry",
   PATCH_FILE: "/tmp/v8-push-to-trunk-tempfile-patch-file",
   COMMITMSG_FILE: "/tmp/v8-push-to-trunk-tempfile-commitmsg",
 }
 
 PUSH_MESSAGE_SUFFIX = " (based on bleeding_edge revision r%d)"
 PUSH_MESSAGE_RE = re.compile(r".* \(based on bleeding_edge revision r(\d+)\)$")
 
 
 class Preparation(Step):
   MESSAGE = "Preparation."
 
   def RunStep(self):
-    self.InitialEnvironmentChecks()
+    self.InitialEnvironmentChecks(self.default_cwd)
     self.CommonPrepare()
 
     if(self["current_branch"] == self.Config(TRUNKBRANCH)
        or self["current_branch"] == self.Config(BRANCHNAME)):
       print "Warning: Script started on branch %s" % self["current_branch"]
 
     self.PrepareBranch()
     self.DeleteBranch(self.Config(TRUNKBRANCH))
 
 
@@ skipping 389 matching lines @@
       CommitTrunk,
       SanityCheck,
       CommitSVN,
       TagRevision,
       CleanUp,
     ]
 
 
 if __name__ == "__main__":  # pragma: no cover
   sys.exit(PushToTrunk(CONFIG).Run())