/// <summary>
/// Ensures the given IRCConfig is not valid.
/// </summary>
/// <param name="config">The config to check.</param>
private void CheckNotValid( IrcConfig config )
{
Assert.Throws<ValidationException>( () => config.Validate() );
ReadOnlyIrcConfig roConfig = new ReadOnlyIrcConfig( config.Clone() );
Assert.Throws<ValidationException>( () => roConfig.Validate() );
IIrcConfig iircConfig = config;
Assert.Throws<ValidationException>( () => iircConfig.Validate() );
}