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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/media/webrtc/media_stream_focus_delegate.h"
#include <memory>
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/test/base/browser_with_test_window_test.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "testing/gmock/include/gmock/gmock.h"
using testing::_;
using testing::Return;
namespace {
const content::DesktopMediaID kDesktopMediaIDWindow =
content::DesktopMediaID(content::DesktopMediaID::TYPE_WINDOW,
content::DesktopMediaID::kNullId);
class MockWindowCapturer : public webrtc::DesktopCapturer {
public:
MockWindowCapturer() = default;
~MockWindowCapturer() override = default;
MOCK_METHOD0(FocusOnSelectedSource, bool());
MOCK_METHOD1(SelectSource, bool(webrtc::DesktopCapturer::SourceId));
void Start(Callback* callback) override {}
void CaptureFrame() override {}
};
} // namespace
class MediaStreamFocusDelegateTest : public BrowserWithTestWindowTest {
public:
~MediaStreamFocusDelegateTest() override = default;
void SetUp() override {
BrowserWithTestWindowTest::SetUp();
// Tabs are added at index 0, so add them in reverse order,
// leading to a simple mapping of tab-N pointing at foo/N.
AddTab(browser(), GURL("http://foo/2"));
AddTab(browser(), GURL("http://foo/1"));
AddTab(browser(), GURL("http://foo/0"));
delegate_ = std::make_unique<MediaStreamFocusDelegate>(
browser()->tab_strip_model()->GetWebContentsAt(0));
}
content::DesktopMediaID DesktopMediaIDForTabAt(int index) const {
content::WebContents* const tab =
browser()->tab_strip_model()->GetWebContentsAt(index);
return content::DesktopMediaID(
content::DesktopMediaID::TYPE_WEB_CONTENTS,
content::DesktopMediaID::kNullId,
content::WebContentsMediaCaptureId(
tab->GetPrimaryMainFrame()->GetProcess()->GetDeprecatedID(),
tab->GetPrimaryMainFrame()->GetRoutingID()));
}
void SetFocus(const content::DesktopMediaID& media_id,
bool focus,
bool is_from_microtask = false,
bool is_from_timer = false) {
delegate_->SetFocus(media_id, focus, is_from_microtask, is_from_timer);
}
void SetWindowCapturer(MockWindowCapturer* window_capturer) {
delegate_->SetWindowCapturerForTesting(
base::WrapUnique<MockWindowCapturer>(window_capturer));
}
protected:
std::unique_ptr<MediaStreamFocusDelegate> delegate_; // Unit-under-test.
};
TEST_F(MediaStreamFocusDelegateTest, FirstSetFocusTrueFocusesTab) {
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 0);
SetFocus(DesktopMediaIDForTabAt(1), true);
EXPECT_EQ(browser()->tab_strip_model()->active_index(), 1);
}
TEST_F(MediaStreamFocusDelegateTest, SecondSetFocusTrueHasNoEffect) {
// Setup - repeated from FirstSetFocusTrueFocusesTab, but as an assumption.
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 0);
SetFocus(DesktopMediaIDForTabAt(1), true);
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 1);
// Test - focus unchanged.
SetFocus(DesktopMediaIDForTabAt(0), true);
EXPECT_EQ(browser()->tab_strip_model()->active_index(), 1);
}
TEST_F(MediaStreamFocusDelegateTest, SetFocusFalseClosesFocusWindow) {
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 0);
// Calling SetFocus(false) does not change focus.
SetFocus(DesktopMediaIDForTabAt(1), false);
EXPECT_EQ(browser()->tab_strip_model()->active_index(), 0);
// Focus can no longer change by new calls to SetFocus(true).
SetFocus(DesktopMediaIDForTabAt(1), true);
EXPECT_EQ(browser()->tab_strip_model()->active_index(), 0);
}
TEST_F(MediaStreamFocusDelegateTest, ChangeOfTabClosesFocusWindow) {
// Setup.
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 0);
browser()->tab_strip_model()->ActivateTabAt(2);
ASSERT_EQ(browser()->tab_strip_model()->active_index(), 2);
// Test - SetFocus has had no effect.
SetFocus(DesktopMediaIDForTabAt(1), true);
EXPECT_EQ(browser()->tab_strip_model()->active_index(), 2);
}
TEST_F(MediaStreamFocusDelegateTest, SelectedSourceFocusesWindow) {
// Setup.
raw_ptr<MockWindowCapturer, DanglingUntriaged> window_capturer =
new MockWindowCapturer();
SetWindowCapturer(window_capturer);
ON_CALL(*window_capturer, SelectSource(_)).WillByDefault(Return(true));
EXPECT_CALL(*window_capturer, SelectSource(_)).Times(1);
EXPECT_CALL(*window_capturer, FocusOnSelectedSource()).Times(1);
SetFocus(kDesktopMediaIDWindow, true);
}
TEST_F(MediaStreamFocusDelegateTest, NotSelectedSourceDoesNotFocusWindow) {
// Setup.
raw_ptr<MockWindowCapturer, DanglingUntriaged> window_capturer =
new MockWindowCapturer();
SetWindowCapturer(window_capturer);
ON_CALL(*window_capturer, SelectSource(_)).WillByDefault(Return(false));
EXPECT_CALL(*window_capturer, SelectSource(_)).Times(1);
EXPECT_CALL(*window_capturer, FocusOnSelectedSource()).Times(0);
SetFocus(kDesktopMediaIDWindow, true);
}
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