public async Task ItemsAuthenticationLeft_TestAsync()
{
var dataBaseFilter = new DataBaseFilter(DataBaseFlags.Loaded | DataBaseFlags.Public | DataBaseFlags.NotLocked);
var dataBase = await dataBaseFilter.GetDataBaseAsync(app);
var authentications = await dataBase.GetAuthenticationInfosAsync();
var authenticationIDs = authentications.Select(item => item.ID).ToArray();
var authentication = await this.TestContext.LoginRandomAsync(item => authenticationIDs.Contains(item.ID) == false);
var expectedDataBase = dataBase;
var expectedUserID = authentication.ID;
var actualDataBase = null as IDataBase;
var actualUserID = string.Empty;
await dataBase.EnterAsync(authentication);
await dataBaseContext.AddItemsAuthenticationLeftEventHandlerAsync(DataBaseContext_ItemsAuthenticationLeft);
await dataBase.LeaveAsync(authentication);
Assert.AreEqual(expectedDataBase, actualDataBase);
Assert.AreEqual(expectedUserID, actualUserID);
await dataBase.EnterAsync(authentication);
await dataBaseContext.RemoveItemsAuthenticationLeftEventHandlerAsync(DataBaseContext_ItemsAuthenticationLeft);
await dataBase.LeaveAsync(authentication);
Assert.AreEqual(expectedDataBase, actualDataBase);
Assert.AreEqual(expectedUserID, actualUserID);
void DataBaseContext_ItemsAuthenticationLeft(object sender, ItemsEventArgs <IDataBase> e)
{
var dataBase = e.Items.Single();
actualDataBase = dataBase;
actualUserID = e.InvokeID;
}
}