Keep only base/extractor.[cc|h].

test/step_test.h

-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-
-#pragma warning(push)
-// C4548: expression before comma has no effect
-#pragma warning(disable : 4548)
-#include <atlstr.h>
-#pragma warning(pop)
-
-// Overview
-//
-// The program to be tested instantiates a StepTestStepper, passing in a
-// unique identifier (by convention, a GUID in registry format). It then
-// calls StepTestStepper::Step() with values representing specific points in
-// execution of the program.
-//
-// Then in test/omaha_system_test.cpp, derive a concrete subclass of
-// StepTestWatcher. In particular, implement VerifyStep(), which takes each of
-// the values passed in through the tested program's StepTestStepper::Step()
-// function, and verifies that the state of the system matches what it should
-// be.
-
-class StepTestBase {
-public:
-  StepTestBase(const TCHAR *name);
-  virtual ~StepTestBase();
-
-protected:
-  HANDLE step_reached_event_;
-  HANDLE resume_event_;
-  HKEY state_key_;
-
-  static const TCHAR *RESUME_EVENT_TEMPLATE;
-  static const TCHAR *STEP_REACHED_EVENT_TEMPLATE;
-  static const TCHAR *STATE_REG_KEY_TEMPLATE;
-  static const TCHAR *STATE_REG_VALUE_NAME;
-
-  void Terminate();
-};
-
-class StepTestStepper : public StepTestBase {
-public:
-  StepTestStepper(const TCHAR *name);
-  virtual ~StepTestStepper();
-
-  void Step(DWORD step);
-private:
-  bool is_someone_listening_;
-};
-
-class StepTestWatcher : public StepTestBase {
-public:
-  StepTestWatcher(const TCHAR *name);
-  virtual ~StepTestWatcher();
-
-  void Go();
-
-protected:
-  // Checks the state of the machine once the tested program has reached the
-  // given step.
-  //
-  // @param step: the step to be verified
-  // @param testing_complete: pointer to bool that should be set to true iff
-  // the testing instance is done testing and should now terminate.
-  // @return true iff the test of this step passed.
-  virtual bool VerifyStep(DWORD step, bool *testing_complete) = 0;
-
-  // Prints instructions to the console telling the human tester what the
-  // expected setup of the system should be.
-  virtual void PrintIntroduction() = 0;
-
-  // Prints a statement to the console indicating that testing is complete.
-  virtual void PrintConclusion() = 0;
-
-  // Returns true iff the given registry key exists on this machine.
-  bool RegistryKeyExists(HKEY root, const TCHAR *name);
-
-  // Returns true iff the given registry value exists on this machine.
-  bool RegistryValueExists(HKEY root, const TCHAR *key_name,
-    const TCHAR *value_name);
-
-  CString name_;
-};