components/user_education/views/help_bubble_view_unittest.cc - chromium/src - Git at Google

 // Copyright 2020 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "components/user_education/views/help_bubble_view.h"

 #include <memory>
 #include <vector>

 #include "base/functional/bind.h"
 #include "base/functional/callback_forward.h"
 #include "base/functional/callback_helpers.h"
 #include "base/memory/raw_ptr.h"
 #include "base/test/mock_callback.h"
 #include "components/user_education/common/feature_promo_specification.h"
 #include "components/user_education/common/help_bubble.h"
 #include "components/user_education/common/help_bubble_params.h"
 #include "components/user_education/views/help_bubble_delegate.h"
 #include "components/user_education/views/help_bubble_factory_views.h"
 #include "components/user_education/views/help_bubble_views_test_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "ui/base/accelerators/accelerator.h"
 #include "ui/base/interaction/element_identifier.h"
 #include "ui/base/interaction/element_test_util.h"
 #include "ui/base/interaction/element_tracker.h"
 #include "ui/base/interaction/expect_call_in_scope.h"
 #include "ui/base/interaction/interaction_test_util.h"
 #include "ui/base/theme_provider.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/views/interaction/interaction_test_util_views.h"
 #include "ui/views/test/views_test_base.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_observer.h"

 namespace user_education {

 namespace {
 DEFINE_LOCAL_ELEMENT_IDENTIFIER_VALUE(kTestElementId);
 const ui::ElementContext kTestElementContext{1};
 constexpr gfx::Rect kWidgetBounds{400, 200, 200, 200};
 }  // namespace

 // Unit tests for HelpBubbleView. Timeout functionality isn't tested here due to
 // the vagaries of trying to get simulated timed events to run without a full
 // execution environment (specifically, Mac tests were extremely flaky without
 // the browser).
 //
 // Timeouts are tested in:
 // chrome/browser/ui/views/user_education/help_bubble_view_timeout_unittest.cc
 class HelpBubbleViewTest : public views::ViewsTestBase {
  public:
   HelpBubbleViewTest() = default;
   ~HelpBubbleViewTest() override = default;

   void SetUp() override {
     ViewsTestBase::SetUp();
     widget_ = std::make_unique<test::TestThemedWidget>();
     widget_->Init(CreateParamsForTestWidget());
     view_ = widget_->SetContentsView(std::make_unique<views::View>());
     widget_->Show();
     widget_->SetBounds(kWidgetBounds);
   }

   void TearDown() override {
     widget_.reset();
     ViewsTestBase::TearDown();
   }

  protected:
   gfx::Rect GetWidgetClientBounds() const {
     return widget_->GetClientAreaBoundsInScreen();
   }

   HelpBubbleView* CreateHelpBubbleView(
       HelpBubbleParams params,
       absl::optional<gfx::Rect> bounds = absl::nullopt) {
     internal::HelpBubbleAnchorParams anchor_params;
     anchor_params.view = view_;
     anchor_params.rect = bounds;
     return new HelpBubbleView(&test_delegate_, anchor_params,
                               std::move(params));
   }

   HelpBubbleView* CreateHelpBubbleView(base::RepeatingClosure button_callback) {
     HelpBubbleParams params;
     params.body_text = u"To X, do Y";
     params.arrow = HelpBubbleArrow::kTopRight;

     if (button_callback) {
       HelpBubbleButtonParams button_params;
       button_params.text = u"Go away";
       button_params.is_default = true;
       button_params.callback = std::move(button_callback);
       params.buttons.push_back(std::move(button_params));
     }

     return CreateHelpBubbleView(std::move(params));
   }

   test::TestHelpBubbleDelegate test_delegate_;
   base::raw_ptr<views::View> view_;
   std::unique_ptr<views::Widget> widget_;
 };

 TEST_F(HelpBubbleViewTest, CallButtonCallback_Mouse) {
   UNCALLED_MOCK_CALLBACK(base::RepeatingClosure, mock_callback);

   HelpBubbleView* const bubble = CreateHelpBubbleView(mock_callback.Get());

   // Simulate clicks on dismiss button.
   EXPECT_CALL_IN_SCOPE(
       mock_callback, Run,
       views::test::InteractionTestUtilSimulatorViews::PressButton(
           bubble->GetDefaultButtonForTesting(),
           ui::test::InteractionTestUtil::InputType::kMouse));

   bubble->GetWidget()->Close();
 }

 TEST_F(HelpBubbleViewTest, CallButtonCallback_Keyboard) {
   UNCALLED_MOCK_CALLBACK(base::RepeatingClosure, mock_callback);

   HelpBubbleView* const bubble = CreateHelpBubbleView(mock_callback.Get());

   // Simulate clicks on dismiss button.
   EXPECT_CALL_IN_SCOPE(
       mock_callback, Run,
       views::test::InteractionTestUtilSimulatorViews::PressButton(
           bubble->GetDefaultButtonForTesting(),
           ui::test::InteractionTestUtil::InputType::kKeyboard));

   bubble->GetWidget()->Close();
 }

 TEST_F(HelpBubbleViewTest, StableButtonOrder) {
   HelpBubbleParams params;
   params.body_text = u"To X, do Y";
   params.arrow = HelpBubbleArrow::kTopRight;

   constexpr char16_t kButton1Text[] = u"button 1";
   constexpr char16_t kButton2Text[] = u"button 2";
   constexpr char16_t kButton3Text[] = u"button 3";

   HelpBubbleButtonParams button1;
   button1.text = kButton1Text;
   button1.is_default = false;
   params.buttons.push_back(std::move(button1));

   HelpBubbleButtonParams button2;
   button2.text = kButton2Text;
   button2.is_default = true;
   params.buttons.push_back(std::move(button2));

   HelpBubbleButtonParams button3;
   button3.text = kButton3Text;
   button3.is_default = false;
   params.buttons.push_back(std::move(button3));

   auto* bubble = new HelpBubbleView(&test_delegate_,
                                     internal::HelpBubbleAnchorParams{view_},
                                     std::move(params));
   EXPECT_EQ(kButton1Text, bubble->GetNonDefaultButtonForTesting(0)->GetText());
   EXPECT_EQ(kButton2Text, bubble->GetDefaultButtonForTesting()->GetText());
   EXPECT_EQ(kButton3Text, bubble->GetNonDefaultButtonForTesting(1)->GetText());
 }

 TEST_F(HelpBubbleViewTest, AnchorToRect) {
   HelpBubbleParams params;
   params.body_text = u"To X, do Y";
   params.arrow = HelpBubbleArrow::kRightCenter;

   const auto widget_bounds = GetWidgetClientBounds();
   gfx::Rect anchor_bounds = widget_bounds;
   anchor_bounds.Inset(50);

   HelpBubbleView* const bubble =
       CreateHelpBubbleView(std::move(params), anchor_bounds);
   const auto bubble_bounds = bubble->GetWidget()->GetWindowBoundsInScreen();

   // The right side of the bubble should overlap the widget.
   EXPECT_TRUE(widget_bounds.Contains(bubble_bounds.right_center()));

   // The right side of the widget should be outside and aligned with the center
   // of the anchor bounds. Allow for rounding error when checking alignment.
   EXPECT_LT(bubble_bounds.right(), anchor_bounds.x());
   EXPECT_LE(std::abs(bubble_bounds.CenterPoint().y() -
                      anchor_bounds.CenterPoint().y()),
             2);
 }

 TEST_F(HelpBubbleViewTest, AnchorRectUpdated) {
   HelpBubbleParams params;
   params.body_text = u"To X, do Y";
   params.arrow = HelpBubbleArrow::kRightCenter;

   const auto widget_bounds = GetWidgetClientBounds();
   gfx::Rect anchor_bounds = widget_bounds;
   anchor_bounds.Inset(50);

   HelpBubbleView* const bubble =
       CreateHelpBubbleView(std::move(params), anchor_bounds);
   const auto bubble_bounds = bubble->GetWidget()->GetWindowBoundsInScreen();

   constexpr gfx::Vector2d kAnchorOffset{9, 13};
   anchor_bounds.Offset(kAnchorOffset);
   bubble->SetForceAnchorRect(anchor_bounds);
   bubble->OnAnchorBoundsChanged();

   gfx::Rect expected = bubble_bounds;
   expected.Offset(kAnchorOffset);
   EXPECT_EQ(expected, bubble->GetWidget()->GetWindowBoundsInScreen());
 }

 class HelpBubbleViewsTest : public HelpBubbleViewTest {
  public:
   HelpBubbleViewsTest() = default;
   ~HelpBubbleViewsTest() override = default;

   // This simulates logic used by e.g. FloatingWebUIHelpBubbleFactory.
   std::unique_ptr<HelpBubbleViews> CreateHelpBubble(
       HelpBubbleParams params,
       ui::TrackedElement* element) {
     HelpBubbleView* const bubble_view =
         CreateHelpBubbleView(std::move(params), element->GetScreenBounds());
     return base::WrapUnique(new HelpBubbleViews(bubble_view, element));
   }

   void SetUp() override {
     HelpBubbleViewTest::SetUp();

     HelpBubbleParams params;
     params.body_text = u"To X, do Y";
     params.arrow = HelpBubbleArrow::kRightCenter;

     gfx::Rect anchor_bounds = GetWidgetClientBounds();
     anchor_bounds.Inset(50);

     test_element_ = std::make_unique<ui::test::TestElement>(
         kTestElementId, kTestElementContext);
     test_element_->SetScreenBounds(anchor_bounds);
     test_element_->Show();

     help_bubble_ = CreateHelpBubble(std::move(params), test_element_.get());
   }

   void TearDown() override {
     test_element_.reset();
     HelpBubbleViewTest::TearDown();
   }

  protected:
   gfx::Rect GetHelpBubbleAnchorRect() const {
     return help_bubble_->bubble_view()->GetAnchorRect();
   }

   std::unique_ptr<ui::test::TestElement> test_element_;
   std::unique_ptr<HelpBubbleViews> help_bubble_;
 };

 // This duplicates the HelpBubbleViewTest, but with a HelpBubbleViews object.
 TEST_F(HelpBubbleViewsTest, AnchorToRect) {
   const auto widget_bounds = GetWidgetClientBounds();
   const auto anchor_bounds = test_element_->GetScreenBounds();
   const auto bubble_bounds = help_bubble_->GetBoundsInScreen();

   // The right side of the bubble should overlap the widget.
   EXPECT_TRUE(widget_bounds.Contains(bubble_bounds.right_center()));

   // The right side of the widget should be outside and aligned with the center
   // of the anchor bounds. Allow for rounding error when checking alignment.
   EXPECT_LT(bubble_bounds.right(), anchor_bounds.x());
   EXPECT_LE(std::abs(bubble_bounds.CenterPoint().y() -
                      anchor_bounds.CenterPoint().y()),
             2);
 }

 // This duplicates the HelpBubbleViewTest, but with a HelpBubbleViews object.
 TEST_F(HelpBubbleViewsTest, AnchorRectUpdated) {
   const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

   // Move the anchor target by a small but noticeable amount.
   auto new_bounds = test_element_->GetScreenBounds();
   constexpr gfx::Vector2d kAnchorOffset{9, 13};
   new_bounds.Offset(kAnchorOffset);
   test_element_->SetScreenBounds(new_bounds);
   ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
       test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

   // Verify that the help bubble has moved by a similar amount.
   gfx::Rect expected = old_bounds;
   expected.Offset(kAnchorOffset);
   EXPECT_EQ(expected, help_bubble_->GetBoundsInScreen());
 }

 // This checks a case where the target anchor region scrolls partially out of
 // the host view. The anchor rect should be the intersection of the two.
 TEST_F(HelpBubbleViewsTest, AnchorRectOverlapsEdge) {
   const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

   // Move the anchor target so that the upper left is beyond the edge of the
   // anchor view.
   auto new_bounds = test_element_->GetScreenBounds();
   new_bounds.Offset(-100, -100);
   test_element_->SetScreenBounds(new_bounds);
   ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
       test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

   // Verify that the help bubble has moved.
   constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.x(), kWidgetBounds.y(), 50,
                                        50};
   EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
   const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
   EXPECT_LT(help_bubble_bounds.y(), old_bounds.y());
   EXPECT_GT(help_bubble_bounds.CenterPoint().y(), kNewAnchorBounds.y());
   EXPECT_LT(help_bubble_bounds.CenterPoint().y(), kNewAnchorBounds.bottom());

   // Bubble may have mirrored horizontally. Check which orientation it's in and
   // verify the position is appropriate to the new anchor region.
   switch (help_bubble_->bubble_view()->GetBubbleFrameView()->GetArrow()) {
     case views::BubbleBorder::RIGHT_CENTER:
       EXPECT_LT(help_bubble_bounds.x(), old_bounds.x());
       EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
       break;
     case views::BubbleBorder::LEFT_CENTER:
       EXPECT_GT(help_bubble_bounds.x(), old_bounds.x());
       EXPECT_GT(help_bubble_bounds.x(), kNewAnchorBounds.right());
       break;
     default:
       NOTREACHED() << "Arrow should only be right-center or left-center.";
   }
 }

 // This checks a case where the target anchor region scrolls fully out of
 // the host view. The anchor rect should be a one-pixel slice on the edge
 // closest to the actual anchor.
 TEST_F(HelpBubbleViewsTest, AnchorOutsideBoundsHorizontal) {
   const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

   // Move the anchor target entirely off the right side of the anchor view.
   auto new_bounds = test_element_->GetScreenBounds();
   new_bounds.Offset(200, 0);
   test_element_->SetScreenBounds(new_bounds);
   ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
       test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

   // Verify that the help bubble has moved. It might be mirrored, however.
   constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.right() - 1,
                                        kWidgetBounds.y() + 50, 1, 100};
   EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
   const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
   EXPECT_EQ(help_bubble_bounds.y(), old_bounds.y());
   EXPECT_GT(help_bubble_bounds.x(), old_bounds.x());
   EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
 }

 // This checks a case where the target anchor region scrolls fully out of
 // the host view. The anchor rect should be a one-pixel slice on the edge
 // closest to the actual anchor.
 TEST_F(HelpBubbleViewsTest, AnchorOutsideBoundsVertical) {
   const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

   // Move the anchor target entirely beyond the bottom of the anchor view.
   auto new_bounds = test_element_->GetScreenBounds();
   new_bounds.Offset(0, 200);
   test_element_->SetScreenBounds(new_bounds);
   ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
       test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

   // Verify that the help bubble has moved. It might be mirrored, however.
   constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.x() + 50,
                                        kWidgetBounds.bottom() - 1, 100, 1};
   EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
   const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
   EXPECT_EQ(help_bubble_bounds.x(), old_bounds.x());
   EXPECT_GT(help_bubble_bounds.y(), old_bounds.y());
   EXPECT_LT(help_bubble_bounds.y(), kNewAnchorBounds.y());
   EXPECT_GE(help_bubble_bounds.bottom(), kNewAnchorBounds.y());
   EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
 }

 // Verifies that a bubble anchored to a region will still move with the owning
 // Widget.
 TEST_F(HelpBubbleViewsTest, MoveAnchorWidget) {
   const auto old_bubble_bounds = help_bubble_->GetBoundsInScreen();
   gfx::Rect widget_bounds = widget_->GetWindowBoundsInScreen();
   constexpr gfx::Vector2d kOffset{9, 13};
   widget_bounds.Offset(kOffset);
   widget_->SetBounds(widget_bounds);
   gfx::Rect expected = old_bubble_bounds;
   expected.Offset(kOffset);
   EXPECT_EQ(expected, help_bubble_->GetBoundsInScreen());
 }

 }  // namespace user_education
	// Copyright 2020 The Chromium Authors
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "components/user_education/views/help_bubble_view.h"

	#include <memory>
	#include <vector>

	#include "base/functional/bind.h"
	#include "base/functional/callback_forward.h"
	#include "base/functional/callback_helpers.h"
	#include "base/memory/raw_ptr.h"
	#include "base/test/mock_callback.h"
	#include "components/user_education/common/feature_promo_specification.h"
	#include "components/user_education/common/help_bubble.h"
	#include "components/user_education/common/help_bubble_params.h"
	#include "components/user_education/views/help_bubble_delegate.h"
	#include "components/user_education/views/help_bubble_factory_views.h"
	#include "components/user_education/views/help_bubble_views_test_util.h"
	#include "testing/gmock/include/gmock/gmock.h"
	#include "ui/base/accelerators/accelerator.h"
	#include "ui/base/interaction/element_identifier.h"
	#include "ui/base/interaction/element_test_util.h"
	#include "ui/base/interaction/element_tracker.h"
	#include "ui/base/interaction/expect_call_in_scope.h"
	#include "ui/base/interaction/interaction_test_util.h"
	#include "ui/base/theme_provider.h"
	#include "ui/gfx/geometry/vector2d.h"
	#include "ui/views/interaction/interaction_test_util_views.h"
	#include "ui/views/test/views_test_base.h"
	#include "ui/views/widget/widget.h"
	#include "ui/views/widget/widget_observer.h"

	namespace user_education {

	namespace {
	DEFINE_LOCAL_ELEMENT_IDENTIFIER_VALUE(kTestElementId);
	const ui::ElementContext kTestElementContext{1};
	constexpr gfx::Rect kWidgetBounds{400, 200, 200, 200};
	} // namespace

	// Unit tests for HelpBubbleView. Timeout functionality isn't tested here due to
	// the vagaries of trying to get simulated timed events to run without a full
	// execution environment (specifically, Mac tests were extremely flaky without
	// the browser).
	//
	// Timeouts are tested in:
	// chrome/browser/ui/views/user_education/help_bubble_view_timeout_unittest.cc
	class HelpBubbleViewTest : public views::ViewsTestBase {
	public:
	HelpBubbleViewTest() = default;
	~HelpBubbleViewTest() override = default;

	void SetUp() override {
	ViewsTestBase::SetUp();
	widget_ = std::make_unique<test::TestThemedWidget>();
	widget_->Init(CreateParamsForTestWidget());
	view_ = widget_->SetContentsView(std::make_unique<views::View>());
	widget_->Show();
	widget_->SetBounds(kWidgetBounds);
	}

	void TearDown() override {
	widget_.reset();
	ViewsTestBase::TearDown();
	}

	protected:
	gfx::Rect GetWidgetClientBounds() const {
	return widget_->GetClientAreaBoundsInScreen();
	}

	HelpBubbleView* CreateHelpBubbleView(
	HelpBubbleParams params,
	absl::optional<gfx::Rect> bounds = absl::nullopt) {
	internal::HelpBubbleAnchorParams anchor_params;
	anchor_params.view = view_;
	anchor_params.rect = bounds;
	return new HelpBubbleView(&test_delegate_, anchor_params,
	std::move(params));
	}

	HelpBubbleView* CreateHelpBubbleView(base::RepeatingClosure button_callback) {
	HelpBubbleParams params;
	params.body_text = u"To X, do Y";
	params.arrow = HelpBubbleArrow::kTopRight;

	if (button_callback) {
	HelpBubbleButtonParams button_params;
	button_params.text = u"Go away";
	button_params.is_default = true;
	button_params.callback = std::move(button_callback);
	params.buttons.push_back(std::move(button_params));
	}

	return CreateHelpBubbleView(std::move(params));
	}

	test::TestHelpBubbleDelegate test_delegate_;
	base::raw_ptr<views::View> view_;
	std::unique_ptr<views::Widget> widget_;
	};

	TEST_F(HelpBubbleViewTest, CallButtonCallback_Mouse) {
	UNCALLED_MOCK_CALLBACK(base::RepeatingClosure, mock_callback);

	HelpBubbleView* const bubble = CreateHelpBubbleView(mock_callback.Get());

	// Simulate clicks on dismiss button.
	EXPECT_CALL_IN_SCOPE(
	mock_callback, Run,
	views::test::InteractionTestUtilSimulatorViews::PressButton(
	bubble->GetDefaultButtonForTesting(),
	ui::test::InteractionTestUtil::InputType::kMouse));

	bubble->GetWidget()->Close();
	}

	TEST_F(HelpBubbleViewTest, CallButtonCallback_Keyboard) {
	UNCALLED_MOCK_CALLBACK(base::RepeatingClosure, mock_callback);

	HelpBubbleView* const bubble = CreateHelpBubbleView(mock_callback.Get());

	// Simulate clicks on dismiss button.
	EXPECT_CALL_IN_SCOPE(
	mock_callback, Run,
	views::test::InteractionTestUtilSimulatorViews::PressButton(
	bubble->GetDefaultButtonForTesting(),
	ui::test::InteractionTestUtil::InputType::kKeyboard));

	bubble->GetWidget()->Close();
	}

	TEST_F(HelpBubbleViewTest, StableButtonOrder) {
	HelpBubbleParams params;
	params.body_text = u"To X, do Y";
	params.arrow = HelpBubbleArrow::kTopRight;

	constexpr char16_t kButton1Text[] = u"button 1";
	constexpr char16_t kButton2Text[] = u"button 2";
	constexpr char16_t kButton3Text[] = u"button 3";

	HelpBubbleButtonParams button1;
	button1.text = kButton1Text;
	button1.is_default = false;
	params.buttons.push_back(std::move(button1));

	HelpBubbleButtonParams button2;
	button2.text = kButton2Text;
	button2.is_default = true;
	params.buttons.push_back(std::move(button2));

	HelpBubbleButtonParams button3;
	button3.text = kButton3Text;
	button3.is_default = false;
	params.buttons.push_back(std::move(button3));

	auto* bubble = new HelpBubbleView(&test_delegate_,
	internal::HelpBubbleAnchorParams{view_},
	std::move(params));
	EXPECT_EQ(kButton1Text, bubble->GetNonDefaultButtonForTesting(0)->GetText());
	EXPECT_EQ(kButton2Text, bubble->GetDefaultButtonForTesting()->GetText());
	EXPECT_EQ(kButton3Text, bubble->GetNonDefaultButtonForTesting(1)->GetText());
	}

	TEST_F(HelpBubbleViewTest, AnchorToRect) {
	HelpBubbleParams params;
	params.body_text = u"To X, do Y";
	params.arrow = HelpBubbleArrow::kRightCenter;

	const auto widget_bounds = GetWidgetClientBounds();
	gfx::Rect anchor_bounds = widget_bounds;
	anchor_bounds.Inset(50);

	HelpBubbleView* const bubble =
	CreateHelpBubbleView(std::move(params), anchor_bounds);
	const auto bubble_bounds = bubble->GetWidget()->GetWindowBoundsInScreen();

	// The right side of the bubble should overlap the widget.
	EXPECT_TRUE(widget_bounds.Contains(bubble_bounds.right_center()));

	// The right side of the widget should be outside and aligned with the center
	// of the anchor bounds. Allow for rounding error when checking alignment.
	EXPECT_LT(bubble_bounds.right(), anchor_bounds.x());
	EXPECT_LE(std::abs(bubble_bounds.CenterPoint().y() -
	anchor_bounds.CenterPoint().y()),
	2);
	}

	TEST_F(HelpBubbleViewTest, AnchorRectUpdated) {
	HelpBubbleParams params;
	params.body_text = u"To X, do Y";
	params.arrow = HelpBubbleArrow::kRightCenter;

	const auto widget_bounds = GetWidgetClientBounds();
	gfx::Rect anchor_bounds = widget_bounds;
	anchor_bounds.Inset(50);

	HelpBubbleView* const bubble =
	CreateHelpBubbleView(std::move(params), anchor_bounds);
	const auto bubble_bounds = bubble->GetWidget()->GetWindowBoundsInScreen();

	constexpr gfx::Vector2d kAnchorOffset{9, 13};
	anchor_bounds.Offset(kAnchorOffset);
	bubble->SetForceAnchorRect(anchor_bounds);
	bubble->OnAnchorBoundsChanged();

	gfx::Rect expected = bubble_bounds;
	expected.Offset(kAnchorOffset);
	EXPECT_EQ(expected, bubble->GetWidget()->GetWindowBoundsInScreen());
	}

	class HelpBubbleViewsTest : public HelpBubbleViewTest {
	public:
	HelpBubbleViewsTest() = default;
	~HelpBubbleViewsTest() override = default;

	// This simulates logic used by e.g. FloatingWebUIHelpBubbleFactory.
	std::unique_ptr<HelpBubbleViews> CreateHelpBubble(
	HelpBubbleParams params,
	ui::TrackedElement* element) {
	HelpBubbleView* const bubble_view =
	CreateHelpBubbleView(std::move(params), element->GetScreenBounds());
	return base::WrapUnique(new HelpBubbleViews(bubble_view, element));
	}

	void SetUp() override {
	HelpBubbleViewTest::SetUp();

	HelpBubbleParams params;
	params.body_text = u"To X, do Y";
	params.arrow = HelpBubbleArrow::kRightCenter;

	gfx::Rect anchor_bounds = GetWidgetClientBounds();
	anchor_bounds.Inset(50);

	test_element_ = std::make_unique<ui::test::TestElement>(
	kTestElementId, kTestElementContext);
	test_element_->SetScreenBounds(anchor_bounds);
	test_element_->Show();

	help_bubble_ = CreateHelpBubble(std::move(params), test_element_.get());
	}

	void TearDown() override {
	test_element_.reset();
	HelpBubbleViewTest::TearDown();
	}

	protected:
	gfx::Rect GetHelpBubbleAnchorRect() const {
	return help_bubble_->bubble_view()->GetAnchorRect();
	}

	std::unique_ptr<ui::test::TestElement> test_element_;
	std::unique_ptr<HelpBubbleViews> help_bubble_;
	};

	// This duplicates the HelpBubbleViewTest, but with a HelpBubbleViews object.
	TEST_F(HelpBubbleViewsTest, AnchorToRect) {
	const auto widget_bounds = GetWidgetClientBounds();
	const auto anchor_bounds = test_element_->GetScreenBounds();
	const auto bubble_bounds = help_bubble_->GetBoundsInScreen();

	// The right side of the bubble should overlap the widget.
	EXPECT_TRUE(widget_bounds.Contains(bubble_bounds.right_center()));

	// The right side of the widget should be outside and aligned with the center
	// of the anchor bounds. Allow for rounding error when checking alignment.
	EXPECT_LT(bubble_bounds.right(), anchor_bounds.x());
	EXPECT_LE(std::abs(bubble_bounds.CenterPoint().y() -
	anchor_bounds.CenterPoint().y()),
	2);
	}

	// This duplicates the HelpBubbleViewTest, but with a HelpBubbleViews object.
	TEST_F(HelpBubbleViewsTest, AnchorRectUpdated) {
	const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

	// Move the anchor target by a small but noticeable amount.
	auto new_bounds = test_element_->GetScreenBounds();
	constexpr gfx::Vector2d kAnchorOffset{9, 13};
	new_bounds.Offset(kAnchorOffset);
	test_element_->SetScreenBounds(new_bounds);
	ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
	test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

	// Verify that the help bubble has moved by a similar amount.
	gfx::Rect expected = old_bounds;
	expected.Offset(kAnchorOffset);
	EXPECT_EQ(expected, help_bubble_->GetBoundsInScreen());
	}

	// This checks a case where the target anchor region scrolls partially out of
	// the host view. The anchor rect should be the intersection of the two.
	TEST_F(HelpBubbleViewsTest, AnchorRectOverlapsEdge) {
	const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

	// Move the anchor target so that the upper left is beyond the edge of the
	// anchor view.
	auto new_bounds = test_element_->GetScreenBounds();
	new_bounds.Offset(-100, -100);
	test_element_->SetScreenBounds(new_bounds);
	ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
	test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

	// Verify that the help bubble has moved.
	constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.x(), kWidgetBounds.y(), 50,
	50};
	EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
	const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
	EXPECT_LT(help_bubble_bounds.y(), old_bounds.y());
	EXPECT_GT(help_bubble_bounds.CenterPoint().y(), kNewAnchorBounds.y());
	EXPECT_LT(help_bubble_bounds.CenterPoint().y(), kNewAnchorBounds.bottom());

	// Bubble may have mirrored horizontally. Check which orientation it's in and
	// verify the position is appropriate to the new anchor region.
	switch (help_bubble_->bubble_view()->GetBubbleFrameView()->GetArrow()) {
	case views::BubbleBorder::RIGHT_CENTER:
	EXPECT_LT(help_bubble_bounds.x(), old_bounds.x());
	EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
	break;
	case views::BubbleBorder::LEFT_CENTER:
	EXPECT_GT(help_bubble_bounds.x(), old_bounds.x());
	EXPECT_GT(help_bubble_bounds.x(), kNewAnchorBounds.right());
	break;
	default:
	NOTREACHED() << "Arrow should only be right-center or left-center.";
	}
	}

	// This checks a case where the target anchor region scrolls fully out of
	// the host view. The anchor rect should be a one-pixel slice on the edge
	// closest to the actual anchor.
	TEST_F(HelpBubbleViewsTest, AnchorOutsideBoundsHorizontal) {
	const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

	// Move the anchor target entirely off the right side of the anchor view.
	auto new_bounds = test_element_->GetScreenBounds();
	new_bounds.Offset(200, 0);
	test_element_->SetScreenBounds(new_bounds);
	ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
	test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

	// Verify that the help bubble has moved. It might be mirrored, however.
	constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.right() - 1,
	kWidgetBounds.y() + 50, 1, 100};
	EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
	const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
	EXPECT_EQ(help_bubble_bounds.y(), old_bounds.y());
	EXPECT_GT(help_bubble_bounds.x(), old_bounds.x());
	EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
	}

	// This checks a case where the target anchor region scrolls fully out of
	// the host view. The anchor rect should be a one-pixel slice on the edge
	// closest to the actual anchor.
	TEST_F(HelpBubbleViewsTest, AnchorOutsideBoundsVertical) {
	const gfx::Rect old_bounds = help_bubble_->GetBoundsInScreen();

	// Move the anchor target entirely beyond the bottom of the anchor view.
	auto new_bounds = test_element_->GetScreenBounds();
	new_bounds.Offset(0, 200);
	test_element_->SetScreenBounds(new_bounds);
	ui::ElementTracker::GetFrameworkDelegate()->NotifyCustomEvent(
	test_element_.get(), kHelpBubbleAnchorBoundsChangedEvent);

	// Verify that the help bubble has moved. It might be mirrored, however.
	constexpr gfx::Rect kNewAnchorBounds{kWidgetBounds.x() + 50,
	kWidgetBounds.bottom() - 1, 100, 1};
	EXPECT_EQ(kNewAnchorBounds, GetHelpBubbleAnchorRect());
	const gfx::Rect help_bubble_bounds = help_bubble_->GetBoundsInScreen();
	EXPECT_EQ(help_bubble_bounds.x(), old_bounds.x());
	EXPECT_GT(help_bubble_bounds.y(), old_bounds.y());
	EXPECT_LT(help_bubble_bounds.y(), kNewAnchorBounds.y());
	EXPECT_GE(help_bubble_bounds.bottom(), kNewAnchorBounds.y());
	EXPECT_LT(help_bubble_bounds.right(), kNewAnchorBounds.x());
	}

	// Verifies that a bubble anchored to a region will still move with the owning
	// Widget.
	TEST_F(HelpBubbleViewsTest, MoveAnchorWidget) {
	const auto old_bubble_bounds = help_bubble_->GetBoundsInScreen();
	gfx::Rect widget_bounds = widget_->GetWindowBoundsInScreen();
	constexpr gfx::Vector2d kOffset{9, 13};
	widget_bounds.Offset(kOffset);
	widget_->SetBounds(widget_bounds);
	gfx::Rect expected = old_bubble_bounds;
	expected.Offset(kOffset);
	EXPECT_EQ(expected, help_bubble_->GetBoundsInScreen());
	}

	} // namespace user_education