Java tutorial
/** * 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 net.logstash.logback.marker; import static org.assertj.core.api.Assertions.assertThat; import java.io.IOException; import java.io.StringWriter; import org.junit.Test; import com.fasterxml.jackson.core.JsonFactory; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.MappingJsonFactory; public class ObjectAppendingMarkerTest { private static final JsonFactory FACTORY = new MappingJsonFactory() .enable(JsonGenerator.Feature.ESCAPE_NON_ASCII); public static class MyClass { private String myField; public MyClass(String myField) { this.myField = myField; } public String getMyField() { return myField; } public void setMyField(String myField) { this.myField = myField; } } @Test public void testWriteTo() throws IOException { MyClass myObject = new MyClass("value"); StringWriter writer = new StringWriter(); JsonGenerator generator = FACTORY.createGenerator(writer); LogstashMarker marker = Markers.append("myObject", myObject); generator.writeStartObject(); marker.writeTo(generator); generator.writeEndObject(); generator.flush(); assertThat(writer.toString()).isEqualTo("{\"myObject\":{\"myField\":\"value\"}}"); } @Test public void testEquals() { MyClass myObject = new MyClass("value"); assertThat(Markers.append("myObject", myObject)).isEqualTo(Markers.append("myObject", myObject)); assertThat(Markers.append("myObject", myObject)) .isNotEqualTo(Markers.append("myObject", new MyClass("value1"))); assertThat(Markers.append("myObject", myObject)) .isNotEqualTo(Markers.append("myDifferentObject", myObject)); } @Test public void testHashCode() { MyClass myObject = new MyClass("value"); assertThat(Markers.append("myObject", myObject).hashCode()) .isEqualTo(Markers.append("myObject", myObject).hashCode()); assertThat(Markers.append("myObject", myObject).hashCode()) .isNotEqualTo(Markers.append("myObject", new MyClass("value1")).hashCode()); assertThat(Markers.append("myObject", myObject).hashCode()) .isNotEqualTo(Markers.append("myDifferentObject", myObject)).hashCode(); } }