Add -v and --vmodule flags in test script

The flags will be propagated to packager binary if set.

Change-Id: I38aa9f4fb8e23f7a802d4114b5507035ef0cc583

packager/app/test/packager_app.py

@@ -37,11 +37,18 @@ class PackagerApp(object):
     return subprocess.check_output([self.binary, '--version'])
 
   def Package(self, streams, flags=None):
+    """Executes packager command."""
     if flags is None:
       flags = []
     cmd = [self.binary]
     cmd.extend(streams)
     cmd.extend(flags)
+
+    if test_env.options.v:
+      cmd.extend(['--v=%s' % test_env.options.v])
+    if test_env.options.vmodule:
+      cmd.extend(['--vmodule="%s"' % test_env.options.vmodule])
+
     # Put single-quotes around each entry so that things like '$' signs in
     # segment templates won't be interpreted as shell variables.
     self.packaging_command_line = ' '.join(["'%s'" % entry for entry in cmd])

packager/app/test/test_env.py

@@ -27,6 +27,8 @@ SRC_DIR = os.path.join(SCRIPT_DIR, os.pardir, os.pardir)
 parser = argparse.ArgumentParser()
 
 parser.add_argument('--test_update_golden_files', default=0, type=int)
+parser.add_argument('--v')
+parser.add_argument('--vmodule')
 # Overwrite the test to encryption key/iv specified in the command line.
 parser.add_argument('--encryption_key')
 parser.add_argument('--encryption_iv')