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// Copyright (c) 2012 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 "webkit/blob/shareable_file_reference.h"
#include "base/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/message_loop.h"
#include "base/message_loop_proxy.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace webkit_blob {
TEST(ShareableFileReferenceTest, TestReferences) {
MessageLoop message_loop;
scoped_refptr<base::MessageLoopProxy> loop_proxy =
base::MessageLoopProxy::current();
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
// Create a file.
FilePath file;
file_util::CreateTemporaryFileInDir(temp_dir.path(), &file);
EXPECT_TRUE(file_util::PathExists(file));
// Create a first reference to that file.
scoped_refptr<ShareableFileReference> reference1;
reference1 = ShareableFileReference::Get(file);
EXPECT_FALSE(reference1.get());
reference1 = ShareableFileReference::GetOrCreate(
file, ShareableFileReference::DELETE_ON_FINAL_RELEASE, loop_proxy);
EXPECT_TRUE(reference1.get());
EXPECT_TRUE(file == reference1->path());
// Get a second reference to that file.
scoped_refptr<ShareableFileReference> reference2;
reference2 = ShareableFileReference::Get(file);
EXPECT_EQ(reference1.get(), reference2.get());
reference2 = ShareableFileReference::GetOrCreate(
file, ShareableFileReference::DELETE_ON_FINAL_RELEASE, loop_proxy);
EXPECT_EQ(reference1.get(), reference2.get());
// Drop the first reference, the file and reference should still be there.
reference1 = NULL;
EXPECT_TRUE(ShareableFileReference::Get(file).get());
MessageLoop::current()->RunUntilIdle();
EXPECT_TRUE(file_util::PathExists(file));
// Drop the second reference, the file and reference should get deleted.
reference2 = NULL;
EXPECT_FALSE(ShareableFileReference::Get(file).get());
MessageLoop::current()->RunUntilIdle();
EXPECT_FALSE(file_util::PathExists(file));
// TODO(michaeln): add a test for files that aren't deletable behavior.
}
} // namespace webkit_blob
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