// Copyright (c) 2010 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 "base/message_loop.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "webkit/appcache/appcache.h"
#include "webkit/appcache/appcache_group.h"
#include "webkit/appcache/appcache_response.h"
#include "webkit/appcache/appcache_storage.h"
#include "webkit/appcache/mock_appcache_service.h"

namespace appcache {

class AppCacheStorageTest : public testing::Test {
 public:
  class MockStorageDelegate : public AppCacheStorage::Delegate {
   public:
  };

  class MockQuotaManagerProxy : public quota::QuotaManagerProxy {
   public:
    MockQuotaManagerProxy()
        : QuotaManagerProxy(NULL, NULL),
          notify_storage_accessed_count_(0),
          notify_storage_modified_count_(0),
          last_delta_(0) {}

    virtual void NotifyStorageAccessed(quota::QuotaClient::ID client_id,
                                       const GURL& origin,
                                       quota::StorageType type) {
      EXPECT_EQ(quota::QuotaClient::kAppcache, client_id);
      EXPECT_EQ(quota::kStorageTypeTemporary, type);
      ++notify_storage_accessed_count_;
      last_origin_ = origin;
    }

    virtual void NotifyStorageModified(quota::QuotaClient::ID client_id,
                                       const GURL& origin,
                                       quota::StorageType type,
                                       int64 delta) {
      EXPECT_EQ(quota::QuotaClient::kAppcache, client_id);
      EXPECT_EQ(quota::kStorageTypeTemporary, type);
      ++notify_storage_modified_count_;
      last_origin_ = origin;
      last_delta_ = delta;
    }

    // Not needed for our tests.
    virtual void RegisterClient(quota::QuotaClient* client) {}
    virtual void NotifyOriginInUse(const GURL& origin) {}
    virtual void NotifyOriginNoLongerInUse(const GURL& origin) {}

    int notify_storage_accessed_count_;
    int notify_storage_modified_count_;
    GURL last_origin_;
    int last_delta_;
  };
};

TEST_F(AppCacheStorageTest, AddRemoveCache) {
  MockAppCacheService service;
  scoped_refptr<AppCache> cache(new AppCache(&service, 111));

  EXPECT_EQ(cache.get(),
            service.storage()->working_set()->GetCache(111));

  service.storage()->working_set()->RemoveCache(cache);

  EXPECT_TRUE(!service.storage()->working_set()->GetCache(111));

  // Removing non-existing cache from service should not fail.
  MockAppCacheService dummy;
  dummy.storage()->working_set()->RemoveCache(cache);
}

TEST_F(AppCacheStorageTest, AddRemoveGroup) {
  MockAppCacheService service;
  scoped_refptr<AppCacheGroup> group(new AppCacheGroup(&service, GURL(), 111));

  EXPECT_EQ(group.get(), service.storage()->working_set()->GetGroup(GURL()));

  service.storage()->working_set()->RemoveGroup(group);

  EXPECT_TRUE(!service.storage()->working_set()->GetGroup(GURL()));

  // Removing non-existing group from service should not fail.
  MockAppCacheService dummy;
  dummy.storage()->working_set()->RemoveGroup(group);
}

TEST_F(AppCacheStorageTest, AddRemoveResponseInfo) {
  MockAppCacheService service;
  scoped_refptr<AppCacheResponseInfo> info(
      new AppCacheResponseInfo(&service, GURL(),
                               111, new net::HttpResponseInfo,
                               kUnkownResponseDataSize));

  EXPECT_EQ(info.get(),
            service.storage()->working_set()->GetResponseInfo(111));

  service.storage()->working_set()->RemoveResponseInfo(info);

  EXPECT_TRUE(!service.storage()->working_set()->GetResponseInfo(111));

  // Removing non-existing info from service should not fail.
  MockAppCacheService dummy;
  dummy.storage()->working_set()->RemoveResponseInfo(info);
}

TEST_F(AppCacheStorageTest, DelegateReferences) {
  typedef scoped_refptr<AppCacheStorage::DelegateReference>
      ScopedDelegateReference;
  MockAppCacheService service;
  MockStorageDelegate delegate;
  ScopedDelegateReference delegate_reference1;
  ScopedDelegateReference delegate_reference2;

  EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

  delegate_reference1 =
      service.storage()->GetOrCreateDelegateReference(&delegate);
  EXPECT_TRUE(delegate_reference1.get());
  EXPECT_TRUE(delegate_reference1->HasOneRef());
  EXPECT_TRUE(service.storage()->GetDelegateReference(&delegate));
  EXPECT_EQ(&delegate,
            service.storage()->GetDelegateReference(&delegate)->delegate);
  EXPECT_EQ(service.storage()->GetDelegateReference(&delegate),
            service.storage()->GetOrCreateDelegateReference(&delegate));
  delegate_reference1 = NULL;
  EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

  delegate_reference1 =
      service.storage()->GetOrCreateDelegateReference(&delegate);
  service.storage()->CancelDelegateCallbacks(&delegate);
  EXPECT_TRUE(delegate_reference1.get());
  EXPECT_TRUE(delegate_reference1->HasOneRef());
  EXPECT_FALSE(delegate_reference1->delegate);
  EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

  delegate_reference2 =
      service.storage()->GetOrCreateDelegateReference(&delegate);
  EXPECT_TRUE(delegate_reference2.get());
  EXPECT_TRUE(delegate_reference2->HasOneRef());
  EXPECT_EQ(&delegate, delegate_reference2->delegate);
  EXPECT_NE(delegate_reference1.get(), delegate_reference2.get());
}

TEST_F(AppCacheStorageTest, UsageMap) {
  const GURL kOrigin("http://origin/");
  const GURL kOrigin2("http://origin2/");

  MockAppCacheService service;
  scoped_refptr<MockQuotaManagerProxy> mock_proxy(new MockQuotaManagerProxy);
  service.set_quota_manager_proxy(mock_proxy);

  service.storage()->UpdateUsageMapAndNotify(kOrigin, 0);
  EXPECT_EQ(0, mock_proxy->notify_storage_modified_count_);

  service.storage()->UpdateUsageMapAndNotify(kOrigin, 10);
  EXPECT_EQ(1, mock_proxy->notify_storage_modified_count_);
  EXPECT_EQ(10, mock_proxy->last_delta_);
  EXPECT_EQ(kOrigin, mock_proxy->last_origin_);

  service.storage()->UpdateUsageMapAndNotify(kOrigin, 100);
  EXPECT_EQ(2, mock_proxy->notify_storage_modified_count_);
  EXPECT_EQ(90, mock_proxy->last_delta_);
  EXPECT_EQ(kOrigin, mock_proxy->last_origin_);

  service.storage()->UpdateUsageMapAndNotify(kOrigin, 0);
  EXPECT_EQ(3, mock_proxy->notify_storage_modified_count_);
  EXPECT_EQ(-100, mock_proxy->last_delta_);
  EXPECT_EQ(kOrigin, mock_proxy->last_origin_);

  service.storage()->NotifyStorageAccessed(kOrigin2);
  EXPECT_EQ(0, mock_proxy->notify_storage_accessed_count_);

  service.storage()->usage_map_[kOrigin2] = 1;
  service.storage()->NotifyStorageAccessed(kOrigin2);
  EXPECT_EQ(1, mock_proxy->notify_storage_accessed_count_);
  EXPECT_EQ(kOrigin2, mock_proxy->last_origin_);

  service.storage()->usage_map_.clear();
  service.storage()->usage_map_[kOrigin] = 5000;
  service.storage()->ClearUsageMapAndNotify();
  EXPECT_EQ(4, mock_proxy->notify_storage_modified_count_);
  EXPECT_EQ(-5000, mock_proxy->last_delta_);
  EXPECT_EQ(kOrigin, mock_proxy->last_origin_);
  EXPECT_TRUE(service.storage()->usage_map_.empty());
}

}  // namespace appcache