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

   1 /*
   2  * Copyright (c) 2014, Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  * 3. Neither the name of Opera Software ASA nor the names of its
  13  *    contributors may be used to endorse or promote products derived
  14  *    from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  19  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  20  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  21  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  23  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  25  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  27  * OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifndef CSSTestHelper_h
  31 #define CSSTestHelper_h
  32
  33 #include "core/css/RuleSet.h"
  34 #include "wtf/Allocator.h"
  35 #include "wtf/RefPtr.h"
  36
  37 namespace blink {
  38
  39 class Document;
  40 class CSSStyleSheet;
  41
  42 // A helper class for writing tests of CSS rules. Example usage:
  43 //
  44 // CSSTestHelper helper;
  45 // helper.addCSSRule("body { color: red} #a { position: absolute }");
  46 // RuleSet& ruleSet = helper.ruleSet();
  47 // ... examine RuleSet to find the rule and test properties on it.
  48
  49 class CSSTestHelper {
  50     STACK_ALLOCATED();
  51 public:
  52     CSSTestHelper();
  53     ~CSSTestHelper();
  54
  55     void addCSSRules(const char* ruleText);
  56     RuleSet& ruleSet();
  57
  58 private:
  59     RefPtrWillBePersistent<Document> m_document;
  60     RefPtrWillBePersistent<CSSStyleSheet> m_styleSheet;
  61 };
  62
  63 } // namespace blink
  64
  65 #endif // CSSTestHelper_h