[Android] Implement gtest and local in platform mode.

build/android/pylib/gtest/local_device_gtest_run.py

Index: build/android/pylib/gtest/local_device_gtest_run.py
diff --git a/build/android/pylib/gtest/local_device_gtest_run.py b/build/android/pylib/gtest/local_device_gtest_run.py
new file mode 100644
index 0000000000000000000000000000000000000000..3ce93d16336e8e5b4da7ab0bb668030f9f2c50ae
--- /dev/null
+++ b/build/android/pylib/gtest/local_device_gtest_run.py
@@ -0,0 +1,208 @@
+# Copyright 2014 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 logging
+import os
+
+from pylib import constants
+from pylib import ports
+from pylib.base import test_run
+from pylib.device import device_errors
+from pylib.gtest import gtest_test_instance
+
+from pylib.local import local_test_server_spawner
+from pylib.local.device import local_device_environment
+from pylib.local.device import local_device_test_run
+from pylib.utils import apk_helper
+from pylib.utils import device_temp_file
+
+_COMMAND_LINE_FLAGS_SUPPORTED = True
+
+_EXTRA_COMMAND_LINE_FILE = (
+    'org.chromium.native_test.ChromeNativeTestActivity.CommandLineFile')
+_EXTRA_COMMAND_LINE_FLAGS = (
+    'org.chromium.native_test.ChromeNativeTestActivity.CommandLineFlags')
+
+_MAX_SHARD_SIZE = 256
+
+# TODO(jbudorick): Move this up to the test instance if the net test server is
+# handled outside of the APK for the remote_device environment.
+_SUITE_REQUIRES_TEST_SERVER_SPAWNER = [
+  'content_unittests', 'content_browsertests', 'net_unittests', 'unit_tests'
+]
+
+class _ApkDelegate(object):
+  def __init__(self, apk):
+    self._apk = apk
+    self._package = apk_helper.GetPackageName(self._apk)
+    self._runner = apk_helper.GetInstrumentationName(self._apk)
+    self._component = '%s/%s' % (self._package, self._runner)
+
+  def Install(self, device):
+    device.Install(self._apk)
+
+  def RunWithFlags(self, device, flags, **kwargs):
+    with device_temp_file.DeviceTempFile(device.adb) as command_line_file:
+      device.WriteFile(command_line_file.name, '_ %s' % flags)
+
+      return device.StartInstrumentation(
+          self._component,
+          extras={_EXTRA_COMMAND_LINE_FILE: command_line_file.name},
+          raw=False,
+          **kwargs)
+
+  def Clear(self, device):
+    device.ClearApplicationState(self._package)
+
+
+class _ExeDelegate(object):
+  def __init__(self, exe, tr):
+    self._exe_host_path = exe
+    self._exe_file_name = os.path.split(exe)[-1]
+    self._exe_device_path = '%s/%s' % (
+        constants.TEST_EXECUTABLE_DIR, self._exe_file_name)
+    deps_host_path = self._exe_host_path + '_deps'
+    if os.path.exists(deps_host_path):
+      self._deps_host_path = deps_host_path
+      self._deps_device_path = self._exe_device_path + '_deps'
+    else:
+      self._deps_host_path = None
+    self._test_run = tr
+
+  def Install(self, device):
+    # TODO(jbudorick): Look into merging this with normal data deps pushing if
+    # executables become supported on nonlocal environments.
+    host_device_tuples = [(self._exe_host_path, self._exe_device_path)]
+    if self._deps_host_path:
+      host_device_tuples.append((self._deps_host_path, self._deps_device_path))
+    device.PushChangedFiles(host_device_tuples)
+
+  def RunWithFlags(self, device, flags, **kwargs):
+    cmd = [
+        self._test_run.GetTool(device).GetTestWrapper(),
+        self._exe_device_path,
+        flags,
+    ]
+    cwd = constants.TEST_EXECUTABLE_DIR
+
+    env = {
+      'LD_LIBRARY_PATH':
+          '%s/%s_deps' % (constants.TEST_EXECUTABLE_DIR, self._exe_file_name),
+    }
+    try:
+      gcov_strip_depth = os.environ['NATIVE_COVERAGE_DEPTH_STRIP']
+      external = device.GetExternalStoragePath()
+      env['GCOV_PREFIX'] = '%s/gcov' % external
+      env['GCOV_PREFIX_STRIP'] = gcov_strip_depth
+    except (device_errors.CommandFailedError, KeyError):
+      pass
+
+    # TODO(jbudorick): Switch to just RunShellCommand once perezju@'s CL
+    # for long shell commands lands.
+    with device_temp_file.DeviceTempFile(device.adb) as script_file:
+      script_contents = ' '.join(cmd)
+      logging.info('script contents: %r' % script_contents)
+      device.WriteFile(script_file.name, script_contents)
+      output = device.RunShellCommand(['sh', script_file.name], cwd=cwd,
+                                      env=env, **kwargs)
+    return output
+
+  def Clear(self, device):
+    try:
+      device.KillAll(self._exe_file_name, blocking=True, timeout=30, retries=0)
+    except device_errors.CommandFailedError:
+      # Raised if there is no process with the given name, which in this case
+      # is all we care about.
+      pass
+
+
+class LocalDeviceGtestRun(local_device_test_run.LocalDeviceTestRun):
+
+  def __init__(self, env, test_instance):
+    assert isinstance(env, local_device_environment.LocalDeviceEnvironment)
+    assert isinstance(test_instance, gtest_test_instance.GtestTestInstance)
+    super(LocalDeviceGtestRun, self).__init__(env, test_instance)
+
+    if self._test_instance.apk:
+      self._delegate = _ApkDelegate(self._test_instance.apk)
+    elif self._test_instance.exe:
+      self._delegate = _ExeDelegate(self, self._test_instance.exe)
+
+    self._servers = {}
+
+  #override
+  def TestPackage(self):
+    return self._test_instance._suite
+
+  #override
+  def SetUp(self):
+
+    def individual_device_set_up(dev, host_device_tuples):
+      # Install test APK.
+      self._delegate.Install(dev)
+
+      # Push data dependencies.
+      external_storage = dev.GetExternalStoragePath()
+      host_device_tuples = [
+          (h, d if d is not None else external_storage)
+          for h, d in host_device_tuples]
+      dev.PushChangedFiles(host_device_tuples)
+
+      self._servers[str(dev)] = []
+      if self.TestPackage() in _SUITE_REQUIRES_TEST_SERVER_SPAWNER:
+        self._servers[str(dev)].append(
+            local_test_server_spawner.LocalTestServerSpawner(
+                ports.AllocateTestServerPort(), dev, self.GetTool(dev)))
+
+      for s in self._servers[str(dev)]:
+        s.SetUp()
+
+    self._env.parallel_devices.pMap(individual_device_set_up,
+                                    self._test_instance.GetDataDependencies())
+
+  #override
+  def _ShouldShard(self):
+    return True
+
+  #override
+  def _CreateShards(self, tests):
+    device_count = len(self._env.devices)
+    shards = []
+    for i in xrange(0, device_count):
+      unbounded_shard = tests[i::device_count]
+      shards += [unbounded_shard[j:j+_MAX_SHARD_SIZE]
+                 for j in xrange(0, len(unbounded_shard), _MAX_SHARD_SIZE)]
+    return [':'.join(s) for s in shards]
+
+  #override
+  def _GetTests(self):
+    tests = self._delegate.RunWithFlags(
+        self._env.devices[0], '--gtest_list_tests')
+    tests = gtest_test_instance.ParseGTestListTests(tests)
+    tests = self._test_instance.FilterTests(tests)
+    return tests
+
+  #override
+  def _RunTest(self, device, test):
+    # Run the test.
+    output = self._delegate.RunWithFlags(device, '--gtest_filter=%s' % test,
+                                         timeout=900, retries=0)
+    for s in self._servers[str(device)]:
+      s.Reset()
+    self._delegate.Clear(device)
+
+    # Parse the output.
+    # TODO(jbudorick): Transition test scripts away from parsing stdout.
+    results = self._test_instance.ParseGTestOutput(output)
+    return results
+
+  #override
+  def TearDown(self):
+    def individual_device_tear_down(dev):
+      for s in self._servers[str(dev)]:
+        s.TearDown()
+
+    self._env.parallel_devices.pMap(individual_device_tear_down)
+