Reflect the current state in Media Router Action icon.

chrome/browser/ui/toolbar/media_router_action_unittest.cc

+// Copyright 2015 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/ui/toolbar/media_router_action.h"
+#include "chrome/browser/ui/webui/media_router/media_router_test.h"
+#include "chrome/grit/generated_resources.h"
+#include "content/public/test/test_utils.h"
+#include "grit/theme_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image_unittest_util.h"
+
+class MediaRouterActionUnitTest : public MediaRouterTest {
+ public:
+  MediaRouterActionUnitTest()
+      : fake_issue_notification_(media_router::Issue("title notification",
+            "message notification",
+            media_router::IssueAction(media_router::IssueAction::TYPE_OK),
+            std::vector<media_router::IssueAction>(),
+            "route_id",
+            media_router::Issue::NOTIFICATION,
+            false, std::string())),
+        fake_issue_warning_(media_router::Issue("title warning",
+            "message warning",
+            media_router::IssueAction(
+                media_router::IssueAction::TYPE_LEARN_MORE),
+            std::vector<media_router::IssueAction>(),
+            "route_id",
+            media_router::Issue::WARNING,
+            false,
+            "www.google.com")),
+        fake_issue_fatal_(media_router::Issue("title fatal",
+            "message fatal",
+            media_router::IssueAction(media_router::IssueAction::TYPE_OK),
+            std::vector<media_router::IssueAction>(),
+            "route_id",
+            media_router::Issue::FATAL,
+            true,
+            std::string())),
+        fake_sink1_("fakeSink1", "Fake Sink 1"),
+        fake_sink2_("fakeSink2", "Fake Sink 2"),
+        fake_source1_("fakeSource1"),
+        fake_source2_("fakeSource2"),
+        fake_route_local_("route1", fake_source1_, fake_sink1_, "desc1",
+            true, "path.html"),
+        fake_route_remote_("route2", fake_source2_, fake_sink2_, "desc2",
+            false, "path.html"),
+        active_icon_(ui::ResourceBundle::GetSharedInstance().
+            GetImageNamed(IDR_MEDIA_ROUTER_ACTIVE_ICON)),
+        error_icon_(ui::ResourceBundle::GetSharedInstance().
+            GetImageNamed(IDR_MEDIA_ROUTER_ERROR_ICON)),
+        idle_icon_(ui::ResourceBundle::GetSharedInstance().
+            GetImageNamed(IDR_MEDIA_ROUTER_IDLE_ICON)),
+        warning_icon_(ui::ResourceBundle::GetSharedInstance().
+            GetImageNamed(IDR_MEDIA_ROUTER_WARNING_ICON)) {
+  }
+
+  ~MediaRouterActionUnitTest() override {}
+
+  // BrowserWithTestWindowTest:
+  void SetUp() override {
+    BrowserWithTestWindowTest::SetUp();
+    action_ = new MediaRouterAction(browser());
+  }
+
+  MediaRouterAction* action() { return action_; }
+  media_router::Issue fake_issue_notification() {
+    return fake_issue_notification_;
+  }
+  media_router::Issue fake_issue_warning() { return fake_issue_warning_; }
+  media_router::Issue fake_issue_fatal() { return fake_issue_fatal_; }
+  media_router::MediaRoute fake_route_local() { return fake_route_local_; }
+  media_router::MediaRoute fake_route_remote() { return fake_route_remote_; }
+  gfx::Image active_icon() { return active_icon_; }
+  gfx::Image error_icon() { return error_icon_; }
+  gfx::Image idle_icon() { return idle_icon_; }
+  gfx::Image warning_icon() { return warning_icon_; }
+
+ private:
+  MediaRouterAction* action_;
+
+  // Fake Issues.
+  media_router::Issue fake_issue_notification_;
+  media_router::Issue fake_issue_warning_;
+  media_router::Issue fake_issue_fatal_;
+
+  // Fake Sinks and Sources, used for the Routes.
+  media_router::MediaSink fake_sink1_;
+  media_router::MediaSink fake_sink2_;
+  media_router::MediaSource fake_source1_;
+  media_router::MediaSource fake_source2_;
+
+  // Fake Routes.
+  media_router::MediaRoute fake_route_local_;
+  media_router::MediaRoute fake_route_remote_;
+
+  // Cached images.
+  gfx::Image active_icon_;
+  gfx::Image error_icon_;
+  gfx::Image idle_icon_;
+  gfx::Image warning_icon_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaRouterActionUnitTest);
+};
+
+// Tests the initial state of MediaRouterAction after construction.
+TEST_F(MediaRouterActionUnitTest, Initialization) {
+  EXPECT_EQ("media_router_action", action()->GetId());
+  EXPECT_EQ(l10n_util::GetStringUTF16(IDS_MEDIA_ROUTER_TITLE),
+      action()->GetActionName());
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+}
+
+// Tests the state of the MediaRouterAction based on updates to issues.
+TEST_F(MediaRouterActionUnitTest, UpdateIssues) {
+  // Initially, there are no issues.
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Don't update |state_| since the issue is only a notification.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_notification()));
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| since the issue is a warning.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_warning()));
+  EXPECT_TRUE(gfx::test::IsEqual(warning_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| since the issue is fatal.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_fatal()));
+  EXPECT_TRUE(gfx::test::IsEqual(error_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Clear the issue.
+  action()->OnIssueUpdated(nullptr);
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+}
+
+// Tests the state of the MediaRouterAction based on updates to routes.
+TEST_F(MediaRouterActionUnitTest, UpdateRoutes) {
+  // Initially, there are no routes.
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  std::vector<media_router::MediaRoute> routes =
+      { fake_route_local(), fake_route_remote() };
+
+  // Update |state_| since there is a local route.
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(active_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| since there are no more local routes.
+  routes = { fake_route_remote() };
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // |state_| stays the same if there are no local routes or no routes.
+  routes = {};
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+}
+
+// Tests the state of the MediaRouterAction based on updates to both issues
+// and routes.
+TEST_F(MediaRouterActionUnitTest, UpdateIssuesAndRoutes) {
+  // Initially, there are no issues or routes.
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // There is no change in |state_| since notification issues do not update
+  // the state.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_notification()));
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Non-local routes also do not have an effect on |state_|.
+  std::vector<media_router::MediaRoute> routes = { fake_route_remote() };
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| since there is a local route.
+  routes = { fake_route_local() };
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(active_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_|, with a priority to reflect the warning issue rather than
+  // local route.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_warning()));
+  EXPECT_TRUE(gfx::test::IsEqual(warning_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Swapping the local route for a non-local one makes no difference to the
+  // |state_|.
+  routes = { fake_route_remote() };
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(warning_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| since the issue has been updated to fatal.
+  action()->OnIssueUpdated(new media_router::Issue(fake_issue_fatal()));
+  EXPECT_TRUE(gfx::test::IsEqual(error_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Fatal issues still take precedent over local routes.
+  routes = { fake_route_local() };
+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(error_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // When the fatal issue is dismissed, |state_| reflects the existing local
+  // route.
+  action()->OnIssueUpdated(nullptr);
+  EXPECT_TRUE(gfx::test::IsEqual(active_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+
+  // Update |state_| when the local route is swapped out for a non-local route.
+  routes = { fake_route_remote() };

[Kevin M, 2015/08/05 20:20:28]

This type of assignment isn't allowed :(

see "(Uniform) Initialization Syntax" in https://chromium-cpp.appspot.com/

[apacible, 2015/08/05 22:13:52]

Updated. Thanks!

+  action()->OnRoutesUpdated(routes);
+  EXPECT_TRUE(gfx::test::IsEqual(idle_icon(),
+                                 action()->GetIcon(nullptr, gfx::Size())));
+}