Issue125Test.java

package org.nutz.el.issue125;

import java.util.HashMap;
import java.util.Map;

import org.junit.Test;
import org.nutz.el.El;
import org.nutz.lang.Lang;
import org.nutz.lang.util.Context;

import static org.junit.Assert.*;


public class Issue125Test {
    @Test
    public void test() throws InstantiationException, IllegalAccessException{
        String[] a = new String[]{"a","b"};
        Map<String, String[]> map = new HashMap<String, String[]>();
        map.put("a", a);
        El exp = new El("util.test(map['a'])");
        Context context = Lang.context();
        context.set("util",StringUtil.class.newInstance());
        context.set("map", map);
        assertEquals("ab", exp.eval(context));
    }
    
    @Test
    public void test2(){
        String[] a = new String[]{"a","b"};
        String[] b = new String[]{"1","2"};
        Map<String,Object> map = new HashMap<String,Object>();
        map.put("a", a);
        map.put("b", b);
        El exp = new El("util.test(map['a'][0],map['b'][0])");  // 预编译结果为一个 El 对象
        Context context = Lang.context();
        context.set("util",new StringUtil());
        context.set("map", map);
        System.out.println(exp.eval(context));
    }
    
    /** 
     * 原因级结论
     * 由于","操作符的权重设置不正确, 导致错误的逆波兰解析.
     * @ TODO 整理一下这个问题的测试, 别这么乱
     */
}