Add a custom Robolectric testrunner.

build/android/pylib/junit/test_runner.py

 # 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 os
 
 from pylib import cmd_helper
 from pylib import constants
 
 class JavaTestRunner(object):
   """Runs java tests on the host."""
 
   def __init__(self, args):
     self._package_filter = args.package_filter
     self._runner_filter = args.runner_filter
     self._sdk_version = args.sdk_version
     self._test_filter = args.test_filter
     self._test_suite = args.test_suite
 
   def SetUp(self):
     pass
 
   def RunTest(self, _test):
     """Runs junit tests from |self._test_suite|."""
-    command = ['java',
+    # Specifies where robolectric runtime dependencies are.
+    java_args = ('-Drobolectric.dependency.dir=%s' %

[jbudorick, 2015/02/27 15:12:48]

Why isn't this just in the command list assignment?

[mikecase (-- gone --), 2015/03/02 19:08:38]

This option, -Drobolectric.dependency.dir, needs to be added before the -jar
option (as it is an option to the java command and not an argument for the jar).

The other options added below with the command.extend([]) are all options for
the jar.

+        os.path.join(constants.GetOutDirectory(), 'lib.java'))
+
+    command = ['java', java_args,
                '-jar', os.path.join(constants.GetOutDirectory(), 'lib.java',
                                     '%s.jar' % self._test_suite)]
+
     if self._test_filter:
       command.extend(['-gtest-filter', self._test_filter])
     if self._package_filter:
       command.extend(['-package-filter', self._package_filter])
     if self._runner_filter:
       command.extend(['-runner-filter', self._runner_filter])
     if self._sdk_version:
       command.extend(['-sdk-version', self._sdk_version])
     return cmd_helper.RunCmd(command)
 
   def TearDown(self):
     pass