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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/layout/style_retain_scope.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/platform/wtf/thread_specific.h"
namespace blink {
TEST(StyleRetainScopeTest, Current) {
EXPECT_EQ(StyleRetainScope::Current(), nullptr);
{
StyleRetainScope scope;
EXPECT_EQ(StyleRetainScope::Current(), &scope);
{
StyleRetainScope scope2;
EXPECT_EQ(StyleRetainScope::Current(), &scope2);
}
EXPECT_EQ(StyleRetainScope::Current(), &scope);
}
EXPECT_EQ(StyleRetainScope::Current(), nullptr);
}
TEST(StyleRetainScopeTest, Retain) {
scoped_refptr<const ComputedStyle> style =
ComputedStyle::CreateInitialStyleSingleton();
EXPECT_TRUE(style->HasOneRef());
{
StyleRetainScope scope;
scope.Retain(*style);
EXPECT_FALSE(style->HasOneRef());
EXPECT_TRUE(style->HasAtLeastOneRef());
}
EXPECT_TRUE(style->HasOneRef());
}
} // namespace blink
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