In wpt-update-expectations, ignore tests that unexpectedly pass.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/wpt_expectations_updater_unittest.py

 # 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.
 
 import copy
 
 from webkitpy.common.host_mock import MockHost
 from webkitpy.common.net.buildbot import Build
 from webkitpy.common.net.buildbot_mock import MockBuildBot
 from webkitpy.common.net.layout_test_results import LayoutTestResult, LayoutTestResults
@@ skipping 51 matching lines @@
                     'passing-test.html': {
                         'expected': 'PASS',
                         'actual': 'PASS',
                     },
                 },
             },
         }))
         updater = WPTExpectationsUpdater(host)
         self.assertEqual(updater.get_failing_results_dict(Build('MOCK Try Mac10.10', 123)), {})
 
+    def test_get_failing_results_dict_unexpected_pass(self):
+        host = self.mock_host()
+        host.buildbot.set_results(Build('MOCK Try Mac10.10', 123), LayoutTestResults({
+            'tests': {
+                'x': {
+                    'passing-test.html': {
+                        'expected': 'FAIL TIMEOUT',
+                        'actual': 'PASS',
+                        'is_unexpected': True,
+                    },
+                },
+            },
+        }))
+        updater = WPTExpectationsUpdater(host)
+        self.assertEqual(updater.get_failing_results_dict(Build('MOCK Try Mac10.10', 123)), {})
+
     def test_get_failing_results_dict_no_results(self):
         host = self.mock_host()
         host.buildbot = MockBuildBot()
         host.buildbot.set_results(Build('MOCK Try Mac10.10', 123), None)
         updater = WPTExpectationsUpdater(host)
         self.assertEqual(updater.get_failing_results_dict(Build('MOCK Try Mac10.10', 123)), {})
 
     def test_get_failing_results_dict_some_failing_results(self):
         host = self.mock_host()
         host.buildbot.set_results(Build('MOCK Try Mac10.10', 123), LayoutTestResults({
@@ skipping 361 matching lines @@
         updater = WPTExpectationsUpdater(self.mock_host())
         updater.get_issue_number = lambda: 'None'
         self.assertEqual(1, updater.run(args=[]))
         self.assertLog(['ERROR: No issue on current branch.\n'])
 
     def test_run_no_try_results(self):
         updater = WPTExpectationsUpdater(self.mock_host())
         updater.get_latest_try_jobs = lambda: []
         self.assertEqual(1, updater.run(args=[]))
         self.assertLog(['ERROR: No try job information was collected.\n'])