package com.github.shansun.sparrow.test;
import junit.framework.TestCase;

import org.junit.Test;

import com.github.shansun.sparrow.command.AbstractCommand;
import com.github.shansun.sparrow.command.CommandException;
import com.github.shansun.sparrow.command.Context;

/**
 * @author: lanbo <br>
 * @version: 1.0 <br>
 * @date: 2012-8-15
 */
public class CommandTest extends TestCase {

    class SimpleCommand extends AbstractCommand {

        @Override
        public boolean canExecute(Context context) throws CommandException {
            return context != null; // 检查入参，绝对是否接受参数
        }

        @Override
        public void doExecute(Context context) throws CommandException {
            System.out.println(context);
            context.addProperty("return", "success");
        }

        @Override
        public void redo() throws CommandException {
            throw new UnsupportedOperationException();
        }

        @Override
        public void undo() throws CommandException {
            throw new UnsupportedOperationException();
        }
    }

    class SimpleContext extends Context {
    }

    @Test
    public void test() throws CommandException {
        CommandTest test = new CommandTest();

        Context ctx = test.new SimpleContext();
        test.new SimpleCommand().execute(ctx);

        System.out.println(ctx.getProperty("return"));
    }
}