Have Python protoc plugin test run with other tests

tools/run_tests/python_tests.json

 [
-  "grpc._adapter._blocking_invocation_inline_service_test",
-  "grpc._adapter._c_test",
-  "grpc._adapter._event_invocation_synchronous_event_service_test",
-  "grpc._adapter._future_invocation_asynchronous_event_service_test",
-  "grpc._adapter._links_test",
-  "grpc._adapter._lonely_rear_link_test",
-  "grpc._adapter._low_test",
-  "grpc.early_adopter.implementations_test",
-  "grpc.framework.assembly.implementations_test",
-  "grpc.framework.base.packets.implementations_test",
-  "grpc.framework.face.blocking_invocation_inline_service_test",
-  "grpc.framework.face.event_invocation_synchronous_event_service_test",
-  "grpc.framework.face.future_invocation_asynchronous_event_service_test",
-  "grpc.framework.foundation._later_test",
-  "grpc.framework.foundation._logging_pool_test"
+  {
+    "file": "test/compiler/python_plugin_test.py"
+  },
+  {
+    "module": "grpc._adapter._blocking_invocation_inline_service_test"
+  },
+  {
+    "module": "grpc._adapter._c_test"
+  },
+  {
+    "module": "grpc._adapter._event_invocation_synchronous_event_service_test"
+  },
+  {
+    "module": "grpc._adapter._future_invocation_asynchronous_event_service_test"
+  },
+  {
+    "module": "grpc._adapter._links_test"
+  },
+  {
+    "module": "grpc._adapter._lonely_rear_link_test"
+  },
+  {
+    "module": "grpc._adapter._low_test"
+  },
+  {
+    "module": "grpc.early_adopter.implementations_test"
+  },
+  {
+    "module": "grpc.framework.assembly.implementations_test"
+  },
+  {
+    "module": "grpc.framework.base.packets.implementations_test"
+  },
+  {
+    "module": "grpc.framework.face.blocking_invocation_inline_service_test"
+  },
+  {
+    "module": "grpc.framework.face.event_invocation_synchronous_event_service_test"
+  },
+  {
+    "module": "grpc.framework.face.future_invocation_asynchronous_event_service_test"
+  },
+  {
+    "module": "grpc.framework.foundation._later_test"
+  },
+  {
+    "module": "grpc.framework.foundation._logging_pool_test"
+  }
 ]
-

tools/run_tests/run_python.sh

@@ -36,4 +36,4 @@ cd $(dirname $0)/../..
 root=`pwd`
 export LD_LIBRARY_PATH=$root/libs/opt
 source python2.7_virtual_environment/bin/activate
-python2.7 -B -m $*
+python2.7 -B $*

tools/run_tests/run_tests.py

@@ -170,11 +170,16 @@ class PythonLanguage(object):
       self._tests = json.load(f)
 
   def test_specs(self, config, travis):
-    return [config.job_spec(['tools/run_tests/run_python.sh', test], None)
-            for test in self._tests]
+    modules = [config.job_spec(['tools/run_tests/run_python.sh', '-m',
+                                test['module']], None)
+               for test in self._tests if 'module' in test]
+    files = [config.job_spec(['tools/run_tests/run_python.sh',
+                              test['file']], None)
+             for test in self._tests if 'file' in test]
+    return files + modules
 
   def make_targets(self):
-    return ['static_c']
+    return ['static_c', 'grpc_python_plugin']
 
   def build_steps(self):
     return [['tools/run_tests/build_python.sh']]