Merged in other half of NaCl SDK's r1387 change to update_manifest.py

native_client_sdk/src/build_tools/tests/update_manifest_test.py

Index: native_client_sdk/src/build_tools/tests/update_manifest_test.py
diff --git a/native_client_sdk/src/build_tools/tests/update_manifest_test.py b/native_client_sdk/src/build_tools/tests/update_manifest_test.py
index 0e33207f2569d82354ef65cb1f921930054fc2fb..529e38ce032e8cec179af815625ff31507b8f6c9 100755
--- a/native_client_sdk/src/build_tools/tests/update_manifest_test.py
+++ b/native_client_sdk/src/build_tools/tests/update_manifest_test.py
@@ -295,6 +295,12 @@ class TestUpdateManifest(unittest.TestCase):
     finally:
       RemoveFile(temp_filename)
 
+  def testPush(self):
+    '''Test whether the push function does the right thing'''
+    options = FakeOptions()
+    argv = ['-g', options.gsutil, 'push']
+    update_manifest.main(argv)
+
   def testHandleSDKTools(self):
     '''Test the handling of the sdk_tools bundle'''
     options = FakeOptions()