MapEntryFormat1419Test.java

package com.fasterxml.jackson.failing;

import java.util.*;

import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.databind.*;

// for [databind#1419]
public class MapEntryFormat1419Test extends BaseMapTest
{
    static class BeanWithMapEntryAsObject {
        @JsonFormat(shape=JsonFormat.Shape.OBJECT)
        public Map.Entry<String,String> entry;

        protected BeanWithMapEntryAsObject() { }
        public BeanWithMapEntryAsObject(String key, String value) {
            Map<String,String> map = new HashMap<>();
            map.put(key, value);
            entry = map.entrySet().iterator().next();
        }
    }

    /*
    /**********************************************************
    /* Test methods
    /**********************************************************
     */

    private final ObjectMapper MAPPER = new ObjectMapper();

    public void testWrappedAsObjectRoundtrip() throws Exception
    {
        BeanWithMapEntryAsObject input = new BeanWithMapEntryAsObject("foo" ,"bar");
        String json = MAPPER.writeValueAsString(input);
        assertEquals(aposToQuotes("{'entry':{'key':'foo','value':'bar'}}"), json);
        BeanWithMapEntryAsObject result = MAPPER.readValue(json, BeanWithMapEntryAsObject.class);
        assertEquals("foo", result.entry.getKey());
        assertEquals("bar", result.entry.getValue());
    }
}