net/quic/test_tools/mock_random.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 NET_QUIC_TEST_TOOLS_MOCK_RANDOM_H_
   6 #define NET_QUIC_TEST_TOOLS_MOCK_RANDOM_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "net/quic/crypto/quic_random.h"
  10
  11 namespace net {
  12
  13 class MockRandom : public QuicRandom {
  14  public:
  15   // Initializes base_ to 0xDEADBEEF.
  16   MockRandom();
  17   explicit MockRandom(uint32 base);
  18
  19   // QuicRandom:
  20   // Fills the |data| buffer with a repeating byte, initially 'r'.
  21   virtual void RandBytes(void* data, size_t len) OVERRIDE;
  22   // Returns base + the current increment.
  23   virtual uint64 RandUint64() OVERRIDE;
  24   // Does nothing.
  25   virtual void Reseed(const void* additional_entropy,
  26                       size_t entropy_len) OVERRIDE;
  27
  28   // ChangeValue increments |increment_|. This causes the value returned by
  29   // |RandUint64| and the byte that |RandBytes| fills with, to change.
  30   void ChangeValue();
  31
  32  private:
  33   uint32 base_;
  34   uint8 increment_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(MockRandom);
  37 };
  38
  39 }  // namespace net
  40
  41 #endif  // NET_QUIC_TEST_TOOLS_MOCK_RANDOM_H_