// Copyright (c) 2012 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 "sync/sessions/sync_session.h"
#include "sync/test/engine/test_id_factory.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace browser_sync {
namespace sessions {

class StatusControllerTest : public testing::Test {
 public:
  virtual void SetUp() {
    routes_[syncable::BOOKMARKS] = GROUP_UI;
  }
 protected:
  ModelSafeRoutingInfo routes_;
};

TEST_F(StatusControllerTest, GetsDirty) {
  StatusController status(routes_);
  status.set_num_server_changes_remaining(30);
  EXPECT_TRUE(status.TestAndClearIsDirty());

  status.set_invalid_store(true);
  EXPECT_TRUE(status.TestAndClearIsDirty());
  status.set_invalid_store(false);
  EXPECT_TRUE(status.TestAndClearIsDirty());

  status.increment_num_successful_commits();
  EXPECT_TRUE(status.TestAndClearIsDirty());
  status.increment_num_successful_commits();
  EXPECT_TRUE(status.TestAndClearIsDirty());

  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_UI);
    status.mutable_conflict_progress()->
        AddSimpleConflictingItemById(syncable::Id());
  }
  EXPECT_TRUE(status.TestAndClearIsDirty());
}

TEST_F(StatusControllerTest, StaysClean) {
  StatusController status(routes_);
  status.update_conflicts_resolved(true);
  EXPECT_FALSE(status.TestAndClearIsDirty());
}

// This test is useful, as simple as it sounds, due to the copy-paste prone
// nature of status_controller.cc (we have had bugs in the past where a set_foo
// method was actually setting |bar_| instead!).
TEST_F(StatusControllerTest, ReadYourWrites) {
  StatusController status(routes_);
  status.set_num_server_changes_remaining(13);
  EXPECT_EQ(13, status.num_server_changes_remaining());

  EXPECT_FALSE(status.syncer_status().invalid_store);
  status.set_invalid_store(true);
  EXPECT_TRUE(status.syncer_status().invalid_store);

  EXPECT_FALSE(status.conflicts_resolved());
  status.update_conflicts_resolved(true);
  EXPECT_TRUE(status.conflicts_resolved());

  status.set_last_download_updates_result(SYNCER_OK);
  EXPECT_EQ(SYNCER_OK, status.error().last_download_updates_result);

  status.set_commit_result(SYNC_AUTH_ERROR);
  EXPECT_EQ(SYNC_AUTH_ERROR, status.error().commit_result);

  for (int i = 0; i < 14; i++)
    status.increment_num_successful_commits();
  EXPECT_EQ(14, status.syncer_status().num_successful_commits);
}

TEST_F(StatusControllerTest, HasConflictingUpdates) {
  StatusController status(routes_);
  EXPECT_FALSE(status.HasConflictingUpdates());
  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_UI);
    EXPECT_FALSE(status.update_progress());
    status.mutable_update_progress()->AddAppliedUpdate(SUCCESS,
        syncable::Id());
    status.mutable_update_progress()->AddAppliedUpdate(CONFLICT_SIMPLE,
        syncable::Id());
    EXPECT_TRUE(status.update_progress()->HasConflictingUpdates());
  }

  EXPECT_TRUE(status.HasConflictingUpdates());

  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_PASSIVE);
    EXPECT_FALSE(status.update_progress());
  }
}

TEST_F(StatusControllerTest, HasConflictingUpdates_NonBlockingUpdates) {
  StatusController status(routes_);
  EXPECT_FALSE(status.HasConflictingUpdates());
  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_UI);
    EXPECT_FALSE(status.update_progress());
    status.mutable_update_progress()->AddAppliedUpdate(SUCCESS,
        syncable::Id());
    status.mutable_update_progress()->AddAppliedUpdate(CONFLICT_HIERARCHY,
        syncable::Id());
    EXPECT_TRUE(status.update_progress()->HasConflictingUpdates());
  }

  EXPECT_TRUE(status.HasConflictingUpdates());
}

TEST_F(StatusControllerTest, CountUpdates) {
  StatusController status(routes_);
  EXPECT_EQ(0, status.CountUpdates());
  ClientToServerResponse* response(status.mutable_updates_response());
  sync_pb::SyncEntity* entity1 = response->mutable_get_updates()->add_entries();
  sync_pb::SyncEntity* entity2 = response->mutable_get_updates()->add_entries();
  ASSERT_TRUE(entity1 != NULL && entity2 != NULL);
  EXPECT_EQ(2, status.CountUpdates());
}

// Test TotalNumConflictingItems
TEST_F(StatusControllerTest, TotalNumConflictingItems) {
  StatusController status(routes_);
  TestIdFactory f;
  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_UI);
    EXPECT_FALSE(status.conflict_progress());
    status.mutable_conflict_progress()->
        AddSimpleConflictingItemById(f.NewLocalId());
    status.mutable_conflict_progress()->
        AddSimpleConflictingItemById(f.NewLocalId());
    EXPECT_EQ(2, status.conflict_progress()->SimpleConflictingItemsSize());
  }
  EXPECT_EQ(2, status.TotalNumConflictingItems());
  {
    ScopedModelSafeGroupRestriction r(&status, GROUP_DB);
    EXPECT_FALSE(status.conflict_progress());
    status.mutable_conflict_progress()->
        AddSimpleConflictingItemById(f.NewLocalId());
    status.mutable_conflict_progress()->
        AddSimpleConflictingItemById(f.NewLocalId());
    EXPECT_EQ(2, status.conflict_progress()->SimpleConflictingItemsSize());
  }
  EXPECT_EQ(4, status.TotalNumConflictingItems());
}

// Basic test that non group-restricted state accessors don't cause violations.
TEST_F(StatusControllerTest, Unrestricted) {
  StatusController status(routes_);
  const UpdateProgress* progress =
      status.GetUnrestrictedUpdateProgress(GROUP_UI);
  EXPECT_FALSE(progress);
  status.error();
  status.syncer_status();
  status.num_server_changes_remaining();
  status.download_updates_succeeded();
  status.ServerSaysNothingMoreToDownload();
  status.group_restriction();
}

}  // namespace sessions
}  // namespace browser_sync