[vr] Clicking on the security icon should prompt the user to bail out of VR

chrome/browser/android/vr_shell/ui_elements/exit_prompt_unittest.cc

+// 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 "chrome/browser/android/vr_shell/ui_elements/exit_prompt.h"
+
+#include "base/bind.h"
+#include "base/macros.h"
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/android/vr_shell/textures/exit_prompt_texture.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/test/gfx_util.h"
+
+using ::testing::Return;
+
+namespace vr_shell {
+
+namespace {
+
+class MockExitPromptTexture : public ExitPromptTexture {
+ public:
+  MockExitPromptTexture() : ExitPromptTexture() {}
+  ~MockExitPromptTexture() override {}
+
+  MOCK_CONST_METHOD1(HitsPrimaryButton, bool(const gfx::PointF&));
+  MOCK_CONST_METHOD1(HitsSecondaryButton, bool(const gfx::PointF&));
+
+  MOCK_CONST_METHOD1(GetPreferredTextureSize, gfx::Size(int));
+  MOCK_CONST_METHOD0(GetDrawnSize, gfx::SizeF());
+  MOCK_METHOD2(Draw, void(SkCanvas*, const gfx::Size&));
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockExitPromptTexture);
+};
+
+}  // namespace
+
+class TestExitPrompt : public ExitPrompt {
+ public:
+  TestExitPrompt();
+  ~TestExitPrompt() override {}
+
+  bool primary_button_pressed() const { return primary_button_pressed_; }
+  bool secondary_button_pressed() const { return secondary_button_pressed_; }
+
+ private:
+  void OnPrimaryButtonPressed() { primary_button_pressed_ = true; }
+

[cjgrant, 2017/06/05 17:33:53]

Drop extra line?

[ymalik, 2017/06/05 20:02:42]

Done.

+  void OnSecondaryButtonPressed() { secondary_button_pressed_ = true; }
+
+  bool primary_button_pressed_ = false;
+  bool secondary_button_pressed_ = false;
+};
+
+TestExitPrompt::TestExitPrompt()
+    : ExitPrompt(512,
+                 base::Bind(&TestExitPrompt::OnPrimaryButtonPressed,
+                            base::Unretained(this)),
+                 base::Bind(&TestExitPrompt::OnSecondaryButtonPressed,
+                            base::Unretained(this))) {}
+
+TEST(ExitPromptTest, PrimaryButtonCallbackCalled) {
+  TestExitPrompt prompt;
+  MockExitPromptTexture* texture = new MockExitPromptTexture();
+  // Called twice from OnButtonDown and twice from OnButtonUp.
+  EXPECT_CALL(*texture, HitsPrimaryButton(gfx::PointF()))
+      .Times(4)
+      .WillRepeatedly(Return(true));
+  // Called once from OnButtonDown and once from OnButtonUp (via OnStatUpdated).
+  EXPECT_CALL(*texture, HitsSecondaryButton(gfx::PointF()))
+      .Times(2)
+      .WillRepeatedly(Return(false));
+  prompt.SetTextureForTesting(std::move(texture));
+
+  prompt.OnButtonDown(gfx::PointF());
+  prompt.OnButtonUp(gfx::PointF());
+
+  EXPECT_EQ(true, prompt.primary_button_pressed());
+  EXPECT_EQ(false, prompt.secondary_button_pressed());
+}
+
+TEST(ExitPromptTest, SecondaryButtonCallbackCalled) {
+  TestExitPrompt prompt;
+  MockExitPromptTexture* texture = new MockExitPromptTexture();
+  // Called twice from OnButtonDown and once from OnButtonUp.
+  EXPECT_CALL(*texture, HitsPrimaryButton(gfx::PointF()))
+      .Times(3)
+      .WillRepeatedly(Return(false));
+  // Called twice from OnButtonDown and twice from OnButtonUp.
+  EXPECT_CALL(*texture, HitsSecondaryButton(gfx::PointF()))
+      .Times(4)
+      .WillRepeatedly(Return(true));
+  prompt.SetTextureForTesting(std::move(texture));
+
+  prompt.OnButtonDown(gfx::PointF());
+  prompt.OnButtonUp(gfx::PointF());
+
+  EXPECT_EQ(false, prompt.primary_button_pressed());
+  EXPECT_EQ(true, prompt.secondary_button_pressed());
+}
+
+}  // namespace vr_shell