public void And_IsConnectionString_is_true_then_setting_is_saved_as_connection_string()
{
var settings = new AppSettings("filename", FileOption.None);
var mySettings = new SettingsWithConnectionString()
{
DatabaseConnectionString = @"Data Source=localhost;Initial Catalog=MyDb;User Id=username;Password=password;"
};
settings.ReadFrom(mySettings);
var value = settings.GetConnectionString("MyDb");
Assert.AreEqual(value, mySettings.DatabaseConnectionString);
}