Fetch local files asynchronously.
This patch implements a new fetcher that only handles local files.
While libcurl supports file:// urls, the stream can't be suspended when
accessing local files.
This new FileFetcher is based on the brillo::FileStream class which
properly handles the asynchronous reads from regular files.
Bug: 28866512
TEST=Added unittest. Deployed an update from a file:// URL.
Change-Id: Ie9d07dda2d773312e55be3c0ab7c9e5b737be18b
diff --git a/common/file_fetcher_unittest.cc b/common/file_fetcher_unittest.cc
new file mode 100644
index 0000000..9c6b0ec
--- /dev/null
+++ b/common/file_fetcher_unittest.cc
@@ -0,0 +1,37 @@
+//
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "update_engine/common/file_fetcher.h"
+
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include "update_engine/common/test_utils.h"
+
+namespace chromeos_update_engine {
+
+class FileFetcherUnitTest : public ::testing::Test {};
+
+TEST_F(FileFetcherUnitTest, SupporterUrlsTest) {
+ EXPECT_TRUE(FileFetcher::SupportedUrl("file:///path/to/somewhere.bin"));
+ EXPECT_TRUE(FileFetcher::SupportedUrl("FILE:///I/LIKE/TO/SHOUT"));
+
+ EXPECT_FALSE(FileFetcher::SupportedUrl("file://relative"));
+ EXPECT_FALSE(FileFetcher::SupportedUrl("http:///no_http_here"));
+}
+
+} // namespace chromeos_update_engine