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// Copyright 2017 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.
#include "core/html/shadow/MediaControls.h"
#include "core/dom/Document.h"
#include "core/html/HTMLVideoElement.h"
#include "core/testing/DummyPageHolder.h"
#include "platform/geometry/IntSize.h"
#include "platform/heap/ThreadState.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
class MediaControlsLeakTest : public ::testing::Test {
protected:
virtual void SetUp() {
m_pageHolder = DummyPageHolder::create(IntSize(800, 600));
Document& document = this->document();
document.write("<body><video controls></video></body>");
m_video = toHTMLVideoElement(document.querySelector("video"));
m_controls = m_video->mediaControls();
}
Document& document() { return m_pageHolder->document(); }
HTMLVideoElement* video() { return m_video; }
MediaControls* controls() { return m_controls; }
private:
std::unique_ptr<DummyPageHolder> m_pageHolder;
WeakPersistent<HTMLVideoElement> m_video;
WeakPersistent<MediaControls> m_controls;
};
TEST_F(MediaControlsLeakTest, RemovingFromDocumentCollectsAll) {
ASSERT_NE(video(), nullptr);
EXPECT_TRUE(video()->hasEventListeners());
EXPECT_NE(controls(), nullptr);
EXPECT_TRUE(document().hasEventListeners());
document().body()->setInnerHTML("");
// When removed from the document, the event listeners should have been
// dropped.
EXPECT_FALSE(document().hasEventListeners());
// The video element should still have some event listeners.
EXPECT_TRUE(video()->hasEventListeners());
ThreadState::current()->collectAllGarbage();
// They have been GC'd.
EXPECT_EQ(video(), nullptr);
EXPECT_EQ(controls(), nullptr);
}
TEST_F(MediaControlsLeakTest, ReInsertingInDocumentCollectsControls) {
ASSERT_NE(video(), nullptr);
EXPECT_TRUE(video()->hasEventListeners());
EXPECT_NE(controls(), nullptr);
EXPECT_TRUE(document().hasEventListeners());
// This should be a no-op.
document().body()->removeChild(video());
document().body()->appendChild(video());
EXPECT_TRUE(document().hasEventListeners());
EXPECT_TRUE(video()->hasEventListeners());
ThreadState::current()->collectAllGarbage();
ASSERT_NE(video(), nullptr);
EXPECT_NE(controls(), nullptr);
EXPECT_EQ(controls(), video()->mediaControls());
}
} // namespace blink
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