Java tutorial
/** * Copyright (C) 2015 Bonitasoft S.A. * Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2.0 of the License, or * (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.bonitasoft.web.designer.model; import static org.assertj.core.api.Assertions.assertThat; import java.nio.charset.StandardCharsets; import com.fasterxml.jackson.core.JsonProcessingException; import org.bonitasoft.web.designer.config.DesignerConfig; import org.junit.Assert; import org.junit.Test; import org.junit.runners.JUnit4; import org.skyscreamer.jsonassert.JSONAssert; public class JacksonObjectMapperTest { private JacksonObjectMapper objectMapper = new DesignerConfig().objectMapperWrapper(); @Test public void should_deserialize_json() throws Exception { String json = "{\"name\": \"colin\", \"number\": 31}"; SimpleObject object = objectMapper.fromJson(json.getBytes(StandardCharsets.UTF_8), SimpleObject.class); assertThat(object.getName()).isEqualTo("colin"); assertThat(object.getNumber()).isEqualTo(31); } @Test public void should_serialize_object_into_json() throws Exception { SimpleObject object = new SimpleObject("id", "Vincent", 1); JSONAssert.assertEquals(new String(objectMapper.toJson(object)), "{\"name\":\"Vincent\",\"number\":1, \"another\": null, \"id\": \"id\"}", false); } @Test public void should_serialize_object_into_json_using_serialization_view() throws Exception { SimpleObject object = new SimpleObject("id", "Vincent", 1); JSONAssert.assertEquals(new String(objectMapper.toJson(object, JsonViewPersistence.class)), "{\"name\":\"Vincent\",\"number\":1}", false); } @Test public void should_format_json_when_using_pretty_print_on_object() throws Exception { SimpleObject object = new SimpleObject("id", "Vincent", 1); assertThat(objectMapper.prettyPrint(object)).isEqualTo("{" + System.lineSeparator() + " \"id\" : \"id\"," + System.lineSeparator() + " \"name\" : \"Vincent\"," + System.lineSeparator() + " \"number\" : 1" + System.lineSeparator() + "}"); } @Test public void should_format_json_when_using_pretty_print_on_json() throws Exception { assertThat(objectMapper.prettyPrint("{\"foo\":\"bar\"}")) .isEqualTo("{" + System.lineSeparator() + " \"foo\" : \"bar\"" + System.lineSeparator() + "}"); } @Test(expected = JsonProcessingException.class) public void should_check_that_json_is_invalid() throws Exception { String notjson = "\n" + " \"fr-FR\": {\n" + " \"Default name\": \"Nom par dfaut\",\n" + " \"Hello boys\": \"Coucou les garooonns\"\n" + " },\n" + " \"ru-RU\": {\n" + " \"Default label\": \"Etiqueta por defecto\",\n" + " \"Hello boys\": \"Bonjourno los garones\"\n" + " }\n" + "}"; objectMapper.checkValidJson(notjson.getBytes(StandardCharsets.UTF_8)); } @Test public void should_check_that_json_is_valid() throws Exception { objectMapper.checkValidJson("{ \"collection\": [\n] }".getBytes(StandardCharsets.UTF_8)); objectMapper.checkValidJson("[1, 2, 3, 4]".getBytes(StandardCharsets.UTF_8)); String json = "{\n" + " \"fr-FR\": {\n" + " \"Default name\": \"Nom par dfaut\",\n" + " \"Hello boys\": \"Coucou les garooonns\"\n" + " },\n" + " \"ru-RU\": {\n" + " \"Default label\": \"Etiqueta por defecto\",\n" + " \"Hello boys\": \"Bonjourno los garones\"\n" + " }\n" + "}"; objectMapper.checkValidJson(json.getBytes(StandardCharsets.UTF_8)); // ok - no exception expected } }