// ****************************************************************

// Copyright 2007, Charlie Poole

// This is free software licensed under the NUnit license. You may

// obtain a copy of the license at http://nunit.org

// ****************************************************************

using System;



namespace NUnit.Core.Extensibility

{

	/// <summary>

	/// Add-ins are used to extend NUnti. All add-ins must

	/// implement the IAddin interface.

	/// </summary>

	public interface IAddin

	{

		/// <summary>

		/// When called, the add-in installs itself into

		/// the host, if possible. Because NUnit uses separate

		/// hosts for the client and test domain environments,

		/// an add-in may be invited to istall itself more than

		/// once. The add-in is responsible for checking which

		/// extension points are supported by the host that is

		/// passed to it and taking the appropriate action.

		/// </summary>

		/// <param name="host">The host in which to install the add-in</param>

		/// <returns>True if the add-in was installed, otehrwise false</returns>

		bool Install( IExtensionHost host );

	}

}