components/drive/fake_free_disk_space_getter.h

   1 // Copyright (c) 2012 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 #ifndef COMPONENTS_DRIVE_FAKE_FREE_DISK_SPACE_GETTER_H_
   6 #define COMPONENTS_DRIVE_FAKE_FREE_DISK_SPACE_GETTER_H_
   7
   8 #include <list>
   9
  10 #include "base/basictypes.h"
  11 #include "components/drive/file_cache.h"
  12
  13 namespace drive {
  14
  15 // This class is used to report fake free disk space. In particular, this
  16 // class can be used to simulate a case where disk is full, or nearly full.
  17 class FakeFreeDiskSpaceGetter : public internal::FreeDiskSpaceGetterInterface {
  18  public:
  19   FakeFreeDiskSpaceGetter();
  20   ~FakeFreeDiskSpaceGetter() override;
  21
  22   void set_default_value(int64 value) { default_value_ = value; }
  23
  24   // Pushes the given value to the back of the fake value list.
  25   //
  26   // If the fake value list is empty, AmountOfFreeDiskSpace() will return
  27   // |default_value_| repeatedly.
  28   // Otherwise, AmountOfFreeDiskSpace() will return the value at the front of
  29   // the list and removes it from the list.
  30   void PushFakeValue(int64 value);
  31
  32   // FreeDiskSpaceGetterInterface overrides.
  33   int64 AmountOfFreeDiskSpace() override;
  34
  35  private:
  36   std::list<int64> fake_values_;
  37   int64 default_value_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(FakeFreeDiskSpaceGetter);
  40 };
  41
  42 }  // namespace drive
  43
  44 #endif  // COMPONENTS_DRIVE_FAKE_FREE_DISK_SPACE_GETTER_H_