Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/gtest/test_package_apk.py

Index: build/android/pylib/gtest/test_package_apk.py
diff --git a/build/android/pylib/gtest/test_package_apk.py b/build/android/pylib/gtest/test_package_apk.py
new file mode 100644
index 0000000000000000000000000000000000000000..a679b0358edbb9e3a01b562fdd9fda16f6b51d91
--- /dev/null
+++ b/build/android/pylib/gtest/test_package_apk.py
@@ -0,0 +1,157 @@
+# 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.
+
+"""Defines TestPackageApk to help run APK-based native tests."""
+# pylint: disable=W0212
+
+import itertools
+import logging
+import os
+import posixpath
+import shlex
+import sys
+import tempfile
+import time
+
+from pylib import android_commands
+from pylib import constants
+from pylib import pexpect
+from pylib.device import device_errors
+from pylib.device import intent
+from pylib.gtest import gtest_test_instance
+from pylib.gtest import local_device_gtest_run
+from pylib.gtest.test_package import TestPackage
+
+
+class TestPackageApk(TestPackage):
+  """A helper class for running APK-based native tests."""
+
+  def __init__(self, suite_name):
+    """
+    Args:
+      suite_name: Name of the test suite (e.g. base_unittests).
+    """
+    TestPackage.__init__(self, suite_name)
+    self.suite_path = os.path.join(
+        constants.GetOutDirectory(), '%s_apk' % suite_name,
+        '%s-debug.apk' % suite_name)
+    if suite_name == 'content_browsertests':
+      self._package_info = constants.PACKAGE_INFO['content_browsertests']
+    elif suite_name == 'components_browsertests':
+      self._package_info = constants.PACKAGE_INFO['components_browsertests']
+    else:
+      self._package_info = constants.PACKAGE_INFO['gtest']
+
+    if suite_name == 'net_unittests':
+      self._extras = {'RunInSubThread': ''}
+    else:
+      self._extras = []
+
+  def _CreateCommandLineFileOnDevice(self, device, options):
+    device.WriteFile(self._package_info.cmdline_file,
+                     self.suite_name + ' ' + options)
+
+  def _GetFifo(self):
+    # The test.fifo path is determined by:
+    # testing/android/native_test/java/src/org/chromium/native_test/
+    #     NativeTestActivity.java and
+    # testing/android/native_test_launcher.cc
+    return '/data/data/' + self._package_info.package + '/files/test.fifo'
+
+  def _ClearFifo(self, device):
+    device.RunShellCommand('rm -f ' + self._GetFifo())
+
+  def _WatchFifo(self, device, timeout, logfile=None):
+    for i in range(100):
+      if device.FileExists(self._GetFifo()):
+        logging.info('Fifo created. Slept for %f secs' % (i * 0.5))
+        break
+      time.sleep(0.5)
+    else:
+      raise device_errors.DeviceUnreachableError(
+          'Unable to find fifo on device %s ' % self._GetFifo())
+    args = shlex.split(device.old_interface.Adb()._target_arg)
+    args += ['shell', 'cat', self._GetFifo()]
+    return pexpect.spawn('adb', args, timeout=timeout, logfile=logfile)
+
+  def _StartActivity(self, device, force_stop=True):
+    device.StartActivity(
+        intent.Intent(package=self._package_info.package,
+                      activity=self._package_info.activity,
+                      action='android.intent.action.MAIN',
+                      extras=self._extras),
+        # No wait since the runner waits for FIFO creation anyway.
+        blocking=False,
+        force_stop=force_stop)
+
+  #override
+  def ClearApplicationState(self, device):
+    device.ClearApplicationState(self._package_info.package)
+    # Content shell creates a profile on the sdscard which accumulates cache
+    # files over time.
+    if self.suite_name == 'content_browsertests':
+      try:
+        device.RunShellCommand(
+            'rm -r %s/content_shell' % device.GetExternalStoragePath(),
+            timeout=60 * 2)
+      except device_errors.CommandFailedError:
+        # TODO(jbudorick) Handle this exception appropriately once the
+        #                 conversions are done.
+        pass
+    elif self.suite_name == 'components_browsertests':
+      try:
+        device.RunShellCommand(
+            'rm -r %s/components_shell' % device.GetExternalStoragePath(),
+            timeout=60 * 2)
+      except device_errors.CommandFailedError:
+        # TODO(jbudorick) Handle this exception appropriately once the
+        #                 conversions are done.
+        pass
+
+  #override
+  def CreateCommandLineFileOnDevice(self, device, test_filter, test_arguments):
+    self._CreateCommandLineFileOnDevice(
+        device, '--gtest_filter=%s %s' % (test_filter, test_arguments))
+
+  #override
+  def GetAllTests(self, device):
+    self._CreateCommandLineFileOnDevice(device, '--gtest_list_tests')
+    try:
+      self.tool.SetupEnvironment()
+      # Clear and start monitoring logcat.
+      self._ClearFifo(device)
+      self._StartActivity(device)
+      # Wait for native test to complete.
+      p = self._WatchFifo(device, timeout=30 * self.tool.GetTimeoutScale())
+      p.expect('<<ScopedMainEntryLogger')
+      p.close()
+    finally:
+      self.tool.CleanUpEnvironment()
+    # We need to strip the trailing newline.
+    content = [line.rstrip() for line in p.before.splitlines()]
+    return gtest_test_instance.ParseGTestListTests(content)
+
+  #override
+  def SpawnTestProcess(self, device):
+    try:
+      self.tool.SetupEnvironment()
+      self._ClearFifo(device)
+      # Doesn't need to stop an Activity because ClearApplicationState() is
+      # always called before this call and so it is already stopped at this
+      # point.
+      self._StartActivity(device, force_stop=False)
+    finally:
+      self.tool.CleanUpEnvironment()
+    logfile = android_commands.NewLineNormalizer(sys.stdout)
+    return self._WatchFifo(device, timeout=10, logfile=logfile)
+
+  #override
+  def Install(self, device):
+    self.tool.CopyFiles(device)
+    device.Install(self.suite_path)
+
+  #override
+  def PullAppFiles(self, device, files, directory):
+    local_device_gtest_run.PullAppFilesImpl(
+        device, self._package_info.package, files, directory)