text: // Copyright 2019 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef IOS_CHROME_TEST_EARL_GREY_EARL_GREY_SCOPED_BLOCK_SWIZZLER_H_
  #define IOS_CHROME_TEST_EARL_GREY_EARL_GREY_SCOPED_BLOCK_SWIZZLER_H_
  
  #import <UIKit/UIKit.h>
  
  #include "base/macros.h"
  
  // Helper class that wraps ScopedBlockSwizzler for use in EG1 and EG2 tests.
  class EarlGreyScopedBlockSwizzler {
   public:
    // Constructs a new ScopedBlockSwizzler via the
    // EarlGreyScopedBlockSwizzlerAppInterface interface.
    EarlGreyScopedBlockSwizzler(NSString* target, NSString* selector, id block);
  
    // Destroys the ScopedBlockSwizzler object via the
    // EarlGreyScopedBlockSwizzlerAppInterface interface.
    virtual ~EarlGreyScopedBlockSwizzler();
  
   private:
    // id used to track creation and destruction of swizzled block.
    int unique_id_ = 0;
  
    DISALLOW_COPY_AND_ASSIGN(EarlGreyScopedBlockSwizzler);
  };
  
  #endif  // IOS_CHROME_TEST_EARL_GREY_EARL_GREY_SCOPED_BLOCK_SWIZZLER_H_
  