Create test expectations line automatically from failing test results

third_party/WebKit/Tools/Scripts/update-w3c-test-expectations

Index: third_party/WebKit/Tools/Scripts/update-w3c-test-expectations
diff --git a/third_party/WebKit/Tools/Scripts/run-webkit-tests b/third_party/WebKit/Tools/Scripts/update-w3c-test-expectations
similarity index 91%
copy from third_party/WebKit/Tools/Scripts/run-webkit-tests
copy to third_party/WebKit/Tools/Scripts/update-w3c-test-expectations
index 4d6826e8f09ebf20ff0378538a8df8bbffd114df..8b5e154e8a42da1b66da9c051a7da2ad20e3c63f 100755
--- a/third_party/WebKit/Tools/Scripts/run-webkit-tests
+++ b/third_party/WebKit/Tools/Scripts/update-w3c-test-expectations
@@ -27,7 +27,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

[qyearsley, 2016/07/11 23:17:32]

This old-style header can be removed, and at the top of the file you should add:

# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

[dcampb, 2016/07/12 03:55:55]

For some reason this patch didn't have the updated headers in them. I must have
changed it after you noted it in the office. 

 
-"""Wrapper around webkitpy/layout_tests/run_webkit_tests.py"""
+"""Wrapper around webkitpy/w3c/update_w3c_test_expectations.py"""
 from webkitpy.common import multiprocessing_bootstrap
 
-multiprocessing_bootstrap.run('webkitpy', 'layout_tests', 'run_webkit_tests.py')
+multiprocessing_bootstrap.run('webkitpy', 'w3c', 'update_w3c_test_expectations.py')

[qyearsley, 2016/07/11 23:17:32]

In this case you probably don't want to use multiprocessing_bootstrap. many of
the scripts in Tools/Scripts just call a function and exit with some status
code, e.g.

  import sys

  from webkitpy.w3c import main


  sys.exit(main())

Example:
https://cs.chromium.org/chromium/src/third_party/WebKit/Tools/Scripts/format-...

Later if you want to get arguments/flags in your script, you could get them from
sys.argv here and pass them to main().

[dcampb, 2016/07/12 03:55:55]

Made the changes to the calling process. I will be looking into adding arguments
in later patches.