[Presentation API] Add support for multiple URLs in PresentationRequest on Media Router UI side

chrome/browser/ui/webui/media_router/cast_modes_with_media_sources_unittest.cc

Index: chrome/browser/ui/webui/media_router/cast_modes_with_media_sources_unittest.cc
diff --git a/chrome/browser/ui/webui/media_router/cast_modes_with_media_sources_unittest.cc b/chrome/browser/ui/webui/media_router/cast_modes_with_media_sources_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d3e2046bda99e272aa6a184298bff5d17b9fe1cb
--- /dev/null
+++ b/chrome/browser/ui/webui/media_router/cast_modes_with_media_sources_unittest.cc
@@ -0,0 +1,75 @@
+// Copyright 2016 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/webui/media_router/cast_modes_with_media_sources.h"
+
+#include "chrome/browser/media/router/media_source_helper.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace media_router {
+
+TEST(MediaRouterCastModesWithMediaSourcesTest, AddAndRemoveSources) {
+  const MediaSource defaultSource1(MediaSourceForPresentationUrl("http://1"));
+  const MediaSource defaultSource2(MediaSourceForPresentationUrl("http://2"));
+  const MediaSource tabSourceA(MediaSourceForTab(123));
+  const CastModeSet castModeSetEmpty;
+  const CastModeSet castModeSetDefault({MediaCastMode::DEFAULT});
+  const CastModeSet castModeSetTab({MediaCastMode::TAB_MIRROR});
+  const CastModeSet castModeSetDefaultAndTab(
+      {MediaCastMode::DEFAULT, MediaCastMode::TAB_MIRROR});
+
+  CastModesWithMediaSources sources;
+  EXPECT_TRUE(sources.IsEmpty());
+  EXPECT_EQ(sources.GetCastModes(), castModeSetEmpty);
+
+  // After the below addition, |sources| should contain:
+  // [Default: 1]
+  sources.AddSource(MediaCastMode::DEFAULT, defaultSource1);
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource2));
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::TAB_MIRROR, defaultSource1));
+  EXPECT_FALSE(sources.IsEmpty());
+  EXPECT_EQ(sources.GetCastModes(), castModeSetDefault);
+
+  // Trying to remove non-existing sources should be no-op.
+  sources.RemoveSource(MediaCastMode::DEFAULT, defaultSource2);
+  sources.RemoveSource(MediaCastMode::TAB_MIRROR, defaultSource1);
+  sources.RemoveSource(MediaCastMode::TAB_MIRROR, tabSourceA);
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_EQ(sources.GetCastModes(), castModeSetDefault);
+
+  // [Default: 1; Tab: A]
+  sources.AddSource(MediaCastMode::TAB_MIRROR, tabSourceA);
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::TAB_MIRROR, tabSourceA));
+  EXPECT_EQ(sources.GetCastModes(), castModeSetDefaultAndTab);
+
+  // [Default: 1,2; Tab: A]
+  sources.AddSource(MediaCastMode::DEFAULT, defaultSource2);
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource2));
+  EXPECT_EQ(sources.GetCastModes(), castModeSetDefaultAndTab);
+
+  // [Default: 2; Tab: A]
+  sources.RemoveSource(MediaCastMode::DEFAULT, defaultSource1);
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_TRUE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource2));
+  EXPECT_EQ(sources.GetCastModes(), castModeSetDefaultAndTab);
+
+  // [Tab: A]
+  sources.RemoveSource(MediaCastMode::DEFAULT, defaultSource2);
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_FALSE(sources.IsEmpty());
+  EXPECT_EQ(sources.GetCastModes(), castModeSetTab);
+
+  // []
+  sources.RemoveSource(MediaCastMode::TAB_MIRROR, tabSourceA);
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource1));
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::DEFAULT, defaultSource2));
+  EXPECT_FALSE(sources.HasSource(MediaCastMode::TAB_MIRROR, tabSourceA));
+  EXPECT_TRUE(sources.IsEmpty());
+  EXPECT_EQ(sources.GetCastModes(), castModeSetEmpty);
+}
+
+}  // namespace media_router