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

/*
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#include "core/css/CSSTestHelper.h"

#include "bindings/core/v8/ExceptionState.h"
#include "core/css/CSSRuleList.h"
#include "core/css/CSSStyleSheet.h"
#include "core/css/RuleSet.h"
#include "core/css/StyleSheetContents.h"
#include "core/dom/Document.h"
#include "platform/wtf/text/TextEncoding.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace blink {

CSSTestHelper::~CSSTestHelper() = default;

CSSTestHelper::CSSTestHelper() {
  document_ = Document::CreateForTest();
  TextPosition position;
  style_sheet_ = CSSStyleSheet::CreateInline(*document_, NullURL(), position,
                                             UTF8Encoding());
}

CSSRuleList* CSSTestHelper::CssRules() {
  DummyExceptionStateForTesting exception_state;
  CSSRuleList* result = style_sheet_->cssRules(exception_state);
  EXPECT_FALSE(exception_state.HadException());
  return result;
}

RuleSet& CSSTestHelper::GetRuleSet() {
  RuleSet& rule_set = style_sheet_->Contents()->EnsureRuleSet(
      MediaQueryEvaluator(), kRuleHasNoSpecialState);
  rule_set.CompactRulesIfNeeded();
  return rule_set;
}

void CSSTestHelper::AddCSSRules(const char* css_text, bool is_empty_sheet) {
  TextPosition position;
  unsigned sheet_length = style_sheet_->length();
  style_sheet_->Contents()->ParseStringAtPosition(css_text, position);
  if (!is_empty_sheet)
    ASSERT_GT(style_sheet_->length(), sheet_length);
  else
    ASSERT_EQ(style_sheet_->length(), sheet_length);
}

}  // namespace blink