[telemetry] OutputFormatter for unit tests.

tools/telemetry/run_tests

Index: tools/telemetry/run_tests
diff --git a/tools/telemetry/run_tests b/tools/telemetry/run_tests
index 3fd97027f288a672c8060ca1bc80d5a32173d82f..98af4e981dc32f5768102474149d2f7af0fe49f7 100755
--- a/tools/telemetry/run_tests
+++ b/tools/telemetry/run_tests
@@ -6,10 +6,14 @@
 import os
 import sys
 
+from telemetry.unittest import gtest_output_formatter
 from telemetry.unittest import run_tests
 
 
 if __name__ == '__main__':
   base_dir = os.path.dirname(os.path.realpath(__file__))
-  run_tests.environment = run_tests.Environment(base_dir, [base_dir])
+  output_formatters = [
+      gtest_output_formatter.GTestOutputFormatter(sys.stdout)]
+  run_tests.environment = run_tests.Environment(
+      base_dir, [base_dir], output_formatters)

[nednguyen, 2014/07/09 17:26:46]

It seems weird for output_formatters to be part of run_test.environment. What
about "run_test.output_formatters = ..." instead?

[dtu, 2014/07/10 00:35:01]

I don't think it's weird. Different callers are going to want output in
different formats, and environment is there to provide customization at this
level. E.g. ChromeOS won't switch to JSON at the same time as chromium.perf.
We'd like to have fewer globals - it's on my plate to move environment into a
variable that's passed to main().

   sys.exit(run_tests.RunTestsCommand.main())