JSONPath_size.java

package com.alibaba.json.bvt.path;

import java.util.ArrayList;
import java.util.List;

import org.junit.Assert;

import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.JSONPath;
import com.alibaba.fastjson.JSONPathException;
import com.alibaba.json.bvt.path.JSONPath_between_int.Entity;

import junit.framework.TestCase;

public class JSONPath_size extends TestCase {

    public void test_root() throws Exception {
        List list = new ArrayList();
        list.add(new Entity(101, "kiki"));
        list.add(new Entity(102, "ljw2083"));
        list.add(new Entity(103, "ljw2083"));

        Assert.assertEquals(3, JSONPath.size(list, "$"));
    }

    public void test_path() throws Exception {
        List list = new ArrayList();
        list.add(new Entity(101, "kiki"));
        list.add(new Entity(102, "ljw2083"));
        list.add(new Entity(103, "ljw2083"));

        JSONObject root = new JSONObject();
        root.put("values", list);

        Assert.assertEquals(3, JSONPath.size(root, "$.values"));
    }

    public void test_path_size() throws Exception {
        JSONPath path = JSONPath.compile("$");

        Assert.assertEquals(-1, path.size(null));
    }

    public void test_path_size_1() throws Exception {
        List list = new ArrayList();
        list.add(new Entity(101, "kiki"));
        list.add(new Entity(102, "ljw2083"));
        list.add(new Entity(103, "ljw2083"));

        JSONPath path = JSONPath.compile("$");

        Assert.assertEquals(3, path.size(list));
    }

    public void test_path_size_2() throws Exception {
        List list = new ArrayList();
        list.add(new Entity(101, "kiki"));
        list.add(new Entity(102, "ljw2083"));
        list.add(new Entity(103, "ljw2083"));

        JSONObject root = new JSONObject();
        root.put("values", list);

        JSONPath path = JSONPath.compile("$.values");

        Assert.assertEquals(3, path.size(root));
    }

    public void test_error() throws Exception {
        ErrorSizeBean obj = new ErrorSizeBean();

        Exception error = null;
        try {
            JSONPath.eval(obj, "$.size()");
        } catch (JSONPathException ex) {
            error = ex;
        }
        Assert.assertNotNull(error);
        Assert.assertNotNull(error.getCause());
    }

    public static class ErrorSizeBean {

        public int getId() {
            throw new IllegalStateException();
        }
    }
}