AU: Use NiceMock<PrefsMock to suppress uninteresting call warnings.

omaha_response_handler_action_unittest.cc

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include <gtest/gtest.h>
 
 #include "update_engine/omaha_response_handler_action.h"
 #include "update_engine/prefs_mock.h"
 #include "update_engine/test_utils.h"
 #include "update_engine/utils.h"
 
 using std::string;
+using testing::NiceMock;
 using testing::Return;
 
 namespace chromeos_update_engine {
 
 class OmahaResponseHandlerActionTest : public ::testing::Test {
  public:
   // Return true iff the OmahaResponseHandlerAction succeeded.
   // If out is non-NULL, it's set w/ the response from the action.
   bool DoTest(const OmahaResponse& in,
               const string& boot_dev,
@@ skipping 32 matching lines @@
 
 bool OmahaResponseHandlerActionTest::DoTest(const OmahaResponse& in,
                                             const string& boot_dev,
                                             InstallPlan* out) {
   ActionProcessor processor;
   OmahaResponseHandlerActionProcessorDelegate delegate;
   processor.set_delegate(&delegate);
 
   ObjectFeederAction<OmahaResponse> feeder_action;
   feeder_action.set_obj(in);
-  PrefsMock prefs;
+  NiceMock<PrefsMock> prefs;
   if (in.update_exists) {
     EXPECT_CALL(prefs, SetString(kPrefsUpdateCheckResponseHash, in.hash))
         .WillOnce(Return(true));
   }
   OmahaResponseHandlerAction response_handler_action(&prefs);
   response_handler_action.set_boot_device(boot_dev);
   BondActions(&feeder_action, &response_handler_action);
   ObjectCollectorAction<InstallPlan> collector_action;
   BondActions(&response_handler_action, &collector_action);
   processor.EnqueueAction(&feeder_action);
@@ skipping 93 matching lines @@
   in.update_exists = false;
   InstallPlan install_plan;
   EXPECT_FALSE(DoTest(in, "/dev/sda1", &install_plan));
   EXPECT_FALSE(install_plan.is_full_update);
   EXPECT_EQ("", install_plan.download_url);
   EXPECT_EQ("", install_plan.download_hash);
   EXPECT_EQ("", install_plan.install_path);
 }
 
 }  // namespace chromeos_update_engine