Fix various issues in RedirectToFileResourceHandler.

content/browser/loader/temporary_file_stream_unittest.cc

+// Copyright 2013 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 "content/browser/loader/temporary_file_stream.h"
+
+#include <string.h>
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/bind.h"
+#include "base/file_util.h"
+#include "base/files/file_path.h"
+#include "base/run_loop.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "net/base/file_stream.h"
+#include "net/base/io_buffer.h"
+#include "net/base/net_errors.h"
+#include "net/base/test_completion_callback.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "webkit/common/blob/shareable_file_reference.h"
+
+using webkit_blob::ShareableFileReference;
+
+namespace content {
+
+namespace {
+
+const char kTestData[] = "0123456789";
+const int kTestDataSize = arraysize(kTestData) - 1;
+
+class WaitForFileStream {
+ public:
+  base::File::Error error() const { return error_; }
+  net::FileStream* file_stream() const { return file_stream_.get(); }
+  ShareableFileReference* deletable_file() const {
+    return deletable_file_.get();
+  }
+
+  void OnFileStreamCreated(base::File::Error error,
+                           scoped_ptr<net::FileStream> file_stream,
+                           ShareableFileReference* deletable_file) {
+    error_ = error;
+    file_stream_ = file_stream.Pass();
+    deletable_file_ = deletable_file;
+    loop_.Quit();
+  }
+
+  void Wait() {
+    loop_.Run();
+  }
+
+  void Release() {
+    file_stream_.reset(NULL);
+    deletable_file_ = NULL;
+  }
+ private:
+  base::RunLoop loop_;
+  base::File::Error error_;
+  scoped_ptr<net::FileStream> file_stream_;
+  scoped_refptr<ShareableFileReference> deletable_file_;
+};
+
+}  // namespace
+
+TEST(TemporaryFileStreamTest, Basic) {
+  TestBrowserThreadBundle thread_bundle(TestBrowserThreadBundle::IO_MAINLOOP);
+
+  // Create a temporary.
+  WaitForFileStream file_stream_waiter;
+  CreateTemporaryFileStream(base::Bind(&WaitForFileStream::OnFileStreamCreated,
+                                       base::Unretained(&file_stream_waiter)));
+  file_stream_waiter.Wait();
+
+  // The temporary should exist.
+  EXPECT_EQ(base::File::FILE_OK, file_stream_waiter.error());
+  base::FilePath file_path = file_stream_waiter.deletable_file()->path();
+  EXPECT_TRUE(base::PathExists(file_path));
+
+  // Write some data to the temporary.
+  int bytes_written = 0;
+  scoped_refptr<net::IOBufferWithSize> buf =
+      new net::IOBufferWithSize(kTestDataSize);
+  memcpy(buf->data(), kTestData, kTestDataSize);
+  scoped_refptr<net::DrainableIOBuffer> drainable =
+      new net::DrainableIOBuffer(buf.get(), buf->size());
+  while (bytes_written != kTestDataSize) {
+    net::TestCompletionCallback write_callback;
+    int rv = file_stream_waiter.file_stream()->Write(
+        drainable.get(), drainable->BytesRemaining(),
+        write_callback.callback());
+    if (rv == net::ERR_IO_PENDING)
+      rv = write_callback.WaitForResult();
+    ASSERT_LT(0, rv);
+    drainable->DidConsume(rv);
+    bytes_written += rv;
+  }
+
+  // Verify the data matches.
+  std::string contents;
+  ASSERT_TRUE(base::ReadFileToString(file_path, &contents));
+  EXPECT_EQ(kTestData, contents);
+
+  // Close the file.
+  net::TestCompletionCallback close_callback;
+  int rv = file_stream_waiter.file_stream()->Close(close_callback.callback());
+  if (rv == net::ERR_IO_PENDING)
+    rv = close_callback.WaitForResult();
+  EXPECT_EQ(net::OK, rv);
+
+  // Release everything. The file should be gone now.
+  file_stream_waiter.Release();
+  base::MessageLoop::current()->RunUntilIdle();
+
+  // The temporary should be gone now.
+  EXPECT_FALSE(base::PathExists(file_path));
+}
+
+}  // content