Add a custom Robolectric testrunner.

build/android/pylib/junit/test_runner.py

Index: build/android/pylib/junit/test_runner.py
diff --git a/build/android/pylib/junit/test_runner.py b/build/android/pylib/junit/test_runner.py
index 35ac666fae887bc82c257893872a730cf5567b2c..b4e32422d5eda1e5a0c1a42c5f5c81c3d9308102 100644
--- a/build/android/pylib/junit/test_runner.py
+++ b/build/android/pylib/junit/test_runner.py
@@ -22,9 +22,14 @@ class JavaTestRunner(object):
 
   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: