public async Task ItemsInfoChanged_TestAsync()
{
var authentication = await this.TestContext.LoginRandomAsync(Authority.Admin);
var dataBaseFilter = new DataBaseFilter(DataBaseFlags.Loaded | DataBaseFlags.Public | DataBaseFlags.NotLocked);
var dataBase = await dataBaseFilter.GetDataBaseAsync(app);
var dataBaseInfo = dataBase.DataBaseInfo;
var typeContext = dataBase.GetService(typeof(ITypeContext)) as ITypeContext;
var expectedModificationInfo = dataBaseInfo.ModificationInfo;
var actualModificationInfo = dataBaseInfo.ModificationInfo;
await dataBase.EnterAsync(authentication);
await dataBaseContext.AddItemsInfoChangedEventHandlerAsync(DataBaseContext_ItemsInfoChanged);
await typeContext.AddRandomCategoryAsync(authentication);
Assert.AreNotEqual(expectedModificationInfo, actualModificationInfo);
actualModificationInfo = expectedModificationInfo;
await dataBaseContext.RemoveItemsInfoChangedEventHandlerAsync(DataBaseContext_ItemsInfoChanged);
await typeContext.AddRandomCategoryAsync(authentication);
await dataBase.LeaveAsync(authentication);
Assert.AreEqual(expectedModificationInfo, actualModificationInfo);
void DataBaseContext_ItemsInfoChanged(object sender, ItemsEventArgs <IDataBase> e)
{
var dataBase = e.Items.Single();
actualModificationInfo = dataBase.DataBaseInfo.ModificationInfo;
}
}