[Android] Keep track of unknown test results at the TestRunner layer.

build/android/pylib/gtest/single_test_runner.py

 # Copyright (c) 2012 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 glob
 import logging
 import os
 import sys
 
 from pylib import android_commands
@@ skipping 235 matching lines @@
 
     Returns:
       A TestResults object.
     """
     try:
       self.test_package.CreateTestRunnerScript(self._gtest_filter,
                                                self._test_arguments)
       self.test_results = self.test_package.RunTestsAndListResults()
     except errors.DeviceUnresponsiveError as e:
       # Make sure this device is not attached
+      logging.warning(e)
       if android_commands.IsDeviceAttached(self.device):
         raise e
-
-      # TODO(frankf): We should report these as "skipped" not "failures".
-      # Wrap the results
-      logging.warning(e)
-      failed_tests = []
-      for t in self._gtest_filter.split(':'):
-        failed_tests += [BaseTestResult(t, '')]
-      self.test_results = TestResults.FromRun(
-          failed=failed_tests, device_exception=self.device)
+      self.test_results.device_exception = device_exception
+    # Calculate unknown test results.
+    finally:
+      # TODO(frankf): Do not break TestResults encapsulation.
+      all_tests = set(self._gtest_filter.split(':'))
+      all_tests_ran = set([t.name for t in self.test_results.GetAll()])
+      unknown_tests = all_tests - all_tests_ran
+      self.test_results.unknown = [BaseTestResult(t, '') for t in unknown_tests]
 
     return self.test_results
 
   def SetUp(self):
     """Sets up necessary test enviroment for the test suite."""
     super(SingleTestRunner, self).SetUp()
     self.adb.ClearApplicationState(constants.CHROME_PACKAGE)
     if self.dump_debug_info:
       self.dump_debug_info.StartRecordingLog(True)
     self.StripAndCopyFiles()
     self.LaunchHelperToolsForTestSuite()
     self.tool.SetupEnvironment()
 
   def TearDown(self):
     """Cleans up the test enviroment for the test suite."""
     self.tool.CleanUpEnvironment()
     if self.test_package.cleanup_test_files:
       self.adb.RemovePushedFiles()
     if self.dump_debug_info:
       self.dump_debug_info.StopRecordingLog()
     if self.dump_debug_info:
       self.dump_debug_info.ArchiveNewCrashFiles()
     super(SingleTestRunner, self).TearDown()