content/browser/loader/temporary_file_stream_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/loader/temporary_file_stream.h"
   6
   7 #include <string.h>
   8
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/bind.h"
  13 #include "base/files/file_path.h"
  14 #include "base/files/file_util.h"
  15 #include "base/run_loop.h"
  16 #include "content/public/test/test_browser_thread_bundle.h"
  17 #include "net/base/file_stream.h"
  18 #include "net/base/io_buffer.h"
  19 #include "net/base/net_errors.h"
  20 #include "net/base/test_completion_callback.h"
  21 #include "storage/browser/blob/shareable_file_reference.h"
  22 #include "testing/gtest/include/gtest/gtest.h"
  23
  24 using storage::ShareableFileReference;
  25
  26 namespace content {
  27
  28 namespace {
  29
  30 const char kTestData[] = "0123456789";
  31 const int kTestDataSize = arraysize(kTestData) - 1;
  32
  33 class WaitForFileStream {
  34  public:
  35   base::File::Error error() const { return error_; }
  36   net::FileStream* file_stream() const { return file_stream_.get(); }
  37   ShareableFileReference* deletable_file() const {
  38     return deletable_file_.get();
  39   }
  40
  41   void OnFileStreamCreated(base::File::Error error,
  42                            scoped_ptr<net::FileStream> file_stream,
  43                            ShareableFileReference* deletable_file) {
  44     error_ = error;
  45     file_stream_ = file_stream.Pass();
  46     deletable_file_ = deletable_file;
  47     loop_.Quit();
  48   }
  49
  50   void Wait() {
  51     loop_.Run();
  52   }
  53
  54   void Release() {
  55     file_stream_.reset(NULL);
  56     deletable_file_ = NULL;
  57   }
  58  private:
  59   base::RunLoop loop_;
  60   base::File::Error error_;
  61   scoped_ptr<net::FileStream> file_stream_;
  62   scoped_refptr<ShareableFileReference> deletable_file_;
  63 };
  64
  65 }  // namespace
  66
  67 TEST(TemporaryFileStreamTest, Basic) {
  68   TestBrowserThreadBundle thread_bundle(TestBrowserThreadBundle::IO_MAINLOOP);
  69
  70   // Create a temporary.
  71   WaitForFileStream file_stream_waiter;
  72   CreateTemporaryFileStream(base::Bind(&WaitForFileStream::OnFileStreamCreated,
  73                                        base::Unretained(&file_stream_waiter)));
  74   file_stream_waiter.Wait();
  75
  76   // The temporary should exist.
  77   EXPECT_EQ(base::File::FILE_OK, file_stream_waiter.error());
  78   base::FilePath file_path = file_stream_waiter.deletable_file()->path();
  79   EXPECT_TRUE(base::PathExists(file_path));
  80
  81   // Write some data to the temporary.
  82   int bytes_written = 0;
  83   scoped_refptr<net::IOBufferWithSize> buf =
  84       new net::IOBufferWithSize(kTestDataSize);
  85   memcpy(buf->data(), kTestData, kTestDataSize);
  86   scoped_refptr<net::DrainableIOBuffer> drainable =
  87       new net::DrainableIOBuffer(buf.get(), buf->size());
  88   while (bytes_written != kTestDataSize) {
  89     net::TestCompletionCallback write_callback;
  90     int rv = file_stream_waiter.file_stream()->Write(
  91         drainable.get(), drainable->BytesRemaining(),
  92         write_callback.callback());
  93     if (rv == net::ERR_IO_PENDING)
  94       rv = write_callback.WaitForResult();
  95     ASSERT_LT(0, rv);
  96     drainable->DidConsume(rv);
  97     bytes_written += rv;
  98   }
  99
 100   // Verify the data matches.
 101   std::string contents;
 102   ASSERT_TRUE(base::ReadFileToString(file_path, &contents));
 103   EXPECT_EQ(kTestData, contents);
 104
 105   // Close the file.
 106   net::TestCompletionCallback close_callback;
 107   int rv = file_stream_waiter.file_stream()->Close(close_callback.callback());
 108   if (rv == net::ERR_IO_PENDING)
 109     rv = close_callback.WaitForResult();
 110   EXPECT_EQ(net::OK, rv);
 111
 112   // Release everything. The file should be gone now.
 113   file_stream_waiter.Release();
 114   base::MessageLoop::current()->RunUntilIdle();
 115
 116   // The temporary should be gone now.
 117   EXPECT_FALSE(base::PathExists(file_path));
 118 }
 119
 120 }  // content