Python wrapper to launch Chromoting browser-tests.

testing/chromoting/browser_tests_launcher.py

Index: testing/chromoting/browser_tests_launcher.py
diff --git a/testing/chromoting/browser_tests_launcher.py b/testing/chromoting/browser_tests_launcher.py
new file mode 100644
index 0000000000000000000000000000000000000000..2cb6b9b707f98f293964bb2ddbde67c9f5a96e90
--- /dev/null
+++ b/testing/chromoting/browser_tests_launcher.py
@@ -0,0 +1,48 @@
+# Copyright (c) 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be

[Lei Lei, 2014/10/14 22:54:21]

One concern about this approach is scalability, swarming supports shard for
gtest, see
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_....

It could split the big browser_tests to several tasks and run each task on
different slave in parallel. I am not sure if you can use shard for your case,
if not, that means the test cases will be running sequentially on one slave.
With more and more test cases added, eventually we need to improve the
performance.

[anandc, 2014/10/15 00:48:22]

Acknowledged.
Makes sense. I've opened
https://code.google.com/p/chromium/issues/detail?id=423581 to track updating
remoting browser-tests to take advantage of this. Until then, we can try this
approach.

+# found in the LICENSE file.
+
+
+"""Utility script to launch browser-tests on the Chromoting bot."""
+import argparse
+import subprocess
+import sys
+
+PROD_DIR_ID = '$(PROD_DIR)'
+
+
+def LaunchCommand(command):
+
+  cmd_line = [command]
+  try:
+    results = subprocess.check_output(
+        cmd_line, stderr=subprocess.STDOUT, shell=True)
+  except subprocess.CalledProcessError, e:
+    print 'Failed to run command %s; %s' % (command, e)
+  else:
+    print results
+  finally:
+    pass
+
+
+def main():
+
+  parser = argparse.ArgumentParser()
+  parser.add_argument('-f', '--file',
+                      help='path to file containing list of command to launch.')
+  parser.add_argument('-p', '--prod_dir',
+                      help='build output folder, i.e., <(PRODUCT_DIR).')
+
+  args = parser.parse_args()
+  if not args.file or not args.prod_dir:
+    parser.print_help()
+    sys.exit(1)
+  with open(args.file) as f:
+    for line in f:
+      # Replace the PROD_DIR value in the command-line with
+      # the passed in value.
+      line = line.replace(PROD_DIR_ID, args.prod_dir)
+      LaunchCommand(line)
+
+if __name__ == '__main__':
+  main()