arc: Exclude non-media files from Android media scanning.

chrome/browser/chromeos/arc/arc_downloads_watcher_service_unittest.cc

Index: chrome/browser/chromeos/arc/arc_downloads_watcher_service_unittest.cc
diff --git a/chrome/browser/chromeos/arc/arc_downloads_watcher_service_unittest.cc b/chrome/browser/chromeos/arc/arc_downloads_watcher_service_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dc69211ddf4b4718ec4c3b0a810c55c7a4ecd919
--- /dev/null
+++ b/chrome/browser/chromeos/arc/arc_downloads_watcher_service_unittest.cc
@@ -0,0 +1,37 @@
+// 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/chromeos/arc/arc_downloads_watcher_service.h"
+
+#include "base/files/file_path.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace arc {
+
+TEST(ArcDownloadsWatcherServiceTest, HasAndroidSupportedMediaExtension) {
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.3g2"))));
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.jpg"))));
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.png"))));
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.xmf"))));
+
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.JPEG"))));
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.cute.jpg"))));
+  EXPECT_TRUE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/.kitten.jpg"))));
+
+  EXPECT_FALSE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.txt"))));
+  EXPECT_FALSE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten.jpg.exe"))));
+  EXPECT_FALSE(HasAndroidSupportedMediaExtension(
+      base::FilePath(FILE_PATH_LITERAL("/tmp/kitten"))));
+}
+
+}  // namespace arc