Java tutorial
/* Copyright 2009-2016 Igor Polevoy Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package org.javalite.activejdbc; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.util.ISO8601DateFormat; import org.javalite.activejdbc.test.ActiveJDBCTest; import org.javalite.activejdbc.test_models.*; import org.junit.Test; import java.text.ParseException; import java.util.Date; import java.util.List; import java.util.Map; /** * @author Igor Polevoy * @author Eric Nielsen */ public class ToJsonSpec extends ActiveJDBCTest { @Test public void shouldGenerateSimpleJson() { deleteAndPopulateTable("people"); Person p = Person.findFirst("name = ? and last_name = ? ", "John", "Smith"); //test no indent String json = p.toJson(false, "name", "last_name", "dob"); Map map = JsonHelper.toMap(json); a(map.get("name")).shouldBeEqual("John"); a(map.get("last_name")).shouldBeEqual("Smith"); a(map.get("dob")).shouldBeEqual("1934-12-01"); } @Test public void shouldIncludePrettyChildren() { deleteAndPopulateTables("users", "addresses"); List<User> personList = User.findAll().orderBy("id").include(Address.class); User u = personList.get(0); String json = u.toJson(true); Map m = JsonHelper.toMap(json); a(m.get("first_name")).shouldBeEqual("Marilyn"); a(m.get("last_name")).shouldBeEqual("Monroe"); Map children = (Map) m.get("children"); List<Map> addresses = (List<Map>) children.get("addresses"); the(addresses.size()).shouldBeEqual(3); //at this point, no need to verify, since the order of addresses is not guaranteed.. or is it?? } @Test public void shouldIncludeUglyChildren() { deleteAndPopulateTables("users", "addresses"); List<User> personList = User.findAll().orderBy("id").include(Address.class); User u = personList.get(0); String json = u.toJson(false); Map m = JsonHelper.toMap(json); a(m.get("first_name")).shouldBeEqual("Marilyn"); a(m.get("last_name")).shouldBeEqual("Monroe"); Map children = (Map) m.get("children"); List<Map> addresses = (List<Map>) children.get("addresses"); the(addresses.size()).shouldBeEqual(3); //at this point, no need to verify, since the order of addresses is not guaranteed.. or is it?? } @Test public void shouldIncludeOnlyProvidedAttributes() { deleteAndPopulateTables("users", "addresses"); User u = User.findById(1); String json = u.toJson(true, "email", "last_name"); JsonHelper.readTree(json); // validate the(json).shouldBeEqual( "{\n" + " \"email\":\"mmonroe@yahoo.com\",\n" + " \"last_name\":\"Monroe\"\n" + "}"); } @Test public void shouldGenerateFromList() { deleteAndPopulateTables("users", "addresses"); LazyList<User> personList = User.findAll().orderBy("id").include(Address.class); String json = personList.toJson(false); JsonHelper.readTree(json); // validate } @Test public void shouldEscapeDoubleQuote() { Page p = new Page(); p.set("description", "bad \"/description\""); JsonNode node = JsonHelper.readTree(p.toJson(true)); a(node.get("description").toString()).shouldBeEqual("\"bad \\\"/description\\\"\""); //ensure no NPE: p = new Page(); p.set("description", null); p.toJson(true); } @Test public void shouldInjectCustomContentIntoJson() { deleteAndPopulateTable("posts"); Post p = Post.findById(1); String json = p.toJson(true, "title"); Map map = JsonHelper.toMap(json); Map injected = (Map) map.get("injected"); a(injected.get("secret_name")).shouldBeEqual("Secret Name"); } @Test public void shouldReturnSecondsInDateTime() throws ParseException { Person p = new Person(); p.set("name", "john", "last_name", "doe").saveIt(); p.refresh(); String json = p.toJson(true); System.out.println(json); @SuppressWarnings("unchecked") Map<String, String> map = JsonHelper.toMap(json); Date d = new ISO8601DateFormat().parse(map.get("created_at")); // difference between date in Json and in original model instance should be less than 1000 milliseconds a(Math.abs(d.getTime() - p.getTimestamp("created_at").getTime()) < 1000L).shouldBeTrue(); } @Test @SuppressWarnings("unchecked") public void shouldGenerateJsonForPolymorphicChildren() { deleteAndPopulateTables("articles", "comments", "tags"); Article a = Article.findFirst("title = ?", "ActiveJDBC polymorphic associations"); a.add(Comment.create("author", "igor", "content", "this is just a test comment text")); a.add(Tag.create("content", "orm")); LazyList<Article> articles = Article.where("title = ?", "ActiveJDBC polymorphic associations") .include(Tag.class, Comment.class); Map[] maps = JsonHelper.toMaps(articles.toJson(true)); the(maps.length).shouldBeEqual(1); Map article = maps[0]; List<Map> comments = (List<Map>) ((Map) article.get("children")).get("comments"); List<Map> tags = (List<Map>) ((Map) article.get("children")).get("tags"); the(comments.size()).shouldBeEqual(1); the(comments.get(0).get("content")).shouldBeEqual("this is just a test comment text"); the(tags.size()).shouldBeEqual(1); the(tags.get(0).get("content")).shouldBeEqual("orm"); } @Test public void shouldKeepParametersCase() { Person p = Person.create("name", "Joe", "last_name", "Schmoe"); Map map = JsonHelper.toMap(p.toJson(true)); a(map.get("name")).shouldBeEqual("Joe"); a(map.get("last_name")).shouldBeEqual("Schmoe"); map = JsonHelper.toMap(p.toJson(true, "Name", "Last_Name")); a(map.get("Name")).shouldBeEqual("Joe"); a(map.get("Last_Name")).shouldBeEqual("Schmoe"); } @Test @SuppressWarnings("unchecked") public void shouldIncludeParent() { deleteAndPopulateTables("libraries", "books", "readers"); List<Book> books = Book.findAll().orderBy(Book.getMetaModel().getIdName()).include(Reader.class, Library.class); Map book = JsonHelper.toMap(books.get(0).toJson(true)); Map parents = (Map) book.get("parents"); the(parents.size()).shouldBeEqual(1); List<Map> libraries = (List<Map>) parents.get("libraries"); the(libraries.size()).shouldBeEqual(1); Map library = libraries.get(0); a(library.get("address")).shouldBeEqual("124 Pine Street"); } @Test @SuppressWarnings("unchecked") public void shouldIncludeParents() { deleteFromTable("computers"); deleteFromTable("motherboards"); deleteFromTable("keyboards"); populateTable("motherboards"); populateTable("keyboards"); populateTable("computers"); String json = Computer.findAll().include(Motherboard.class, Keyboard.class).toJson(true); List list = org.javalite.common.JsonHelper.toList(json); Map m = (Map) list.get(0); Map parents = (Map) m.get("parents"); List motherboards = (List) parents.get("motherboards"); List keyboards = (List) parents.get("keyboards"); the(motherboards.size()).shouldBeEqual(1); the(keyboards.size()).shouldBeEqual(1); } }