Updated update_manifest.py to push manifest files to server

build_tools/tests/update_manifest_test.py

Index: build_tools/tests/update_manifest_test.py
diff --git a/build_tools/tests/update_manifest_test.py b/build_tools/tests/update_manifest_test.py
index ce2c89a18219015eeb0a619a72ec78d37fad2427..5fa1f5cf169215e1bbb4b352db51a4d5b040a9e3 100755
--- a/build_tools/tests/update_manifest_test.py
+++ b/build_tools/tests/update_manifest_test.py
@@ -294,6 +294,12 @@ 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()