third_party/WebKit/Source/core/css/CSSTestHelper.h

/*
 * Copyright (c) 2014, Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of Opera Software ASA nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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#ifndef CSSTestHelper_h
#define CSSTestHelper_h

#include "base/memory/scoped_refptr.h"
#include "core/css/RuleSet.h"
#include "platform/wtf/Allocator.h"

namespace blink {

class Document;
class CSSStyleSheet;

// A helper class for writing tests of CSS rules. Example usage:
//
// CSSTestHelper helper;
// helper.addCSSRule("body { color: red} #a { position: absolute }");
// RuleSet& ruleSet = helper.ruleSet();
// ... examine RuleSet to find the rule and test properties on it.

class CSSTestHelper {
  STACK_ALLOCATED();

 public:
  CSSTestHelper();
  ~CSSTestHelper();

  const Document& GetDocument() { return *document_; };

  void AddCSSRules(const char* rule_text);
  RuleSet& GetRuleSet();
  CSSRuleList* CssRules();

 private:
  Persistent<Document> document_;
  Persistent<CSSStyleSheet> style_sheet_;
};

}  // namespace blink

#endif  // CSSTestHelper_h