base/test/mock_time_provider.cc

   1 // Copyright (c) 2011 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 "base/logging.h"
   6 #include "base/test/mock_time_provider.h"
   7
   8 using ::testing::DefaultValue;
   9
  10 namespace base {
  11
  12 MockTimeProvider* MockTimeProvider::instance_ = NULL;
  13
  14 MockTimeProvider::MockTimeProvider() {
  15   DCHECK(!instance_) << "Only one instance of MockTimeProvider can exist";
  16   DCHECK(!DefaultValue<Time>::IsSet());
  17   instance_ = this;
  18   DefaultValue<Time>::Set(Time::FromInternalValue(0));
  19 }
  20
  21 MockTimeProvider::~MockTimeProvider() {
  22   instance_ = NULL;
  23   DefaultValue<Time>::Clear();
  24 }
  25
  26 // static
  27 Time MockTimeProvider::StaticNow() {
  28   return instance_->Now();
  29 }
  30
  31 }  // namespace base