DeserializationTest.java

package com.twobox.evaluategson_jsonapi;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

import junit.framework.TestCase;

import java.util.Map;


import com.twobox.evaluategson_jsonapi.deserialize.JSONApiTypeAdapter;
import com.twobox.evaluategson_jsonapi.deserialize.JSONApiTypeAdapterFactory;

import com.twobox.evaluategson_jsonapi.model.Data;
import com.twobox.evaluategson_jsonapi.model.JsonAPIData;
import com.twobox.evaluategson_jsonapi.model.User;
import com.twobox.evaluategson_jsonapi.model.UsersResponse;

/**
 * Created by wischweh1 on 02.07.15.
 */
public class DeserializationTest extends TestCase {

    public static final String USERS_JSON=" {\n" +
            "    \"data\": [\n" +
            "      {\n" +
            "        \"type\":\"users\",\n" +
            "        \"id\":\"929f2f80-e457-4045-841b-c7c2d97a2058\",\n" +
            "        \"attributes\":{\n" +
            "          \"email\":\"example@example.com\",\n" +
            "          \"token\":\"12345\"\n" +
            "        }\n" +
            "      }\n" +
            "    ]\n" +
            "  }" ;


    public void testDefaultDeserialization() {
        Gson gson=new GsonBuilder().create();
        Data[] datas=gson.fromJson(USERS_JSON, JsonAPIData.class).data;
        assertEquals(1,datas.length);
        Data data=datas[0];
        assertEquals("users",data.type);
        assertEquals("929f2f80-e457-4045-841b-c7c2d97a2058",data.id);
        Map<String,String> attributes=data.attributes;
        assertEquals(2,attributes.keySet().size());
        assertEquals("example@example.com",attributes.get("email"));
        assertEquals("12345",attributes.get("token"));
    }

    public void testGenericJSONApiDeserialization() {
        Gson gson=new GsonBuilder().registerTypeAdapter(User.class,new JSONApiTypeAdapter<User>(User.class)).create();
        UsersResponse parsedResponse=gson.fromJson(USERS_JSON,UsersResponse.class);
        assertEquals(1,parsedResponse.users.length);
        User user=parsedResponse.users[0];
        assertNotNull(user);
        assertEquals("929f2f80-e457-4045-841b-c7c2d97a2058",user.id);
        assertEquals("example@example.com",user.email);
        assertEquals("12345",user.token);
    }

    public void testCustomizedTypeAdapterDeserialization() {
        Gson gson=new GsonBuilder().registerTypeAdapterFactory(new JSONApiTypeAdapterFactory<User>(User.class)).create();
        UsersResponse parsedResponse=gson.fromJson(USERS_JSON,UsersResponse.class);
        assertEquals(1,parsedResponse.users.length);
        User user=parsedResponse.users[0];
        assertNotNull(user);
        assertEquals("929f2f80-e457-4045-841b-c7c2d97a2058",user.id);
        assertEquals("example@example.com",user.email);
        assertEquals("12345",user.token);
    }



}