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 java.util.HashMap; import java.util.Map; import org.junit.Test; import com.fasterxml.jackson.core.JsonFactory; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.MappingJsonFactory; public class MapEntriesAppendingMarkerTest { private static final JsonFactory FACTORY = new MappingJsonFactory() .enable(JsonGenerator.Feature.ESCAPE_NON_ASCII); @Test public void testWriteTo() throws IOException { Map<String, String> map = new HashMap<String, String>(); map.put("myField", "value"); StringWriter writer = new StringWriter(); JsonGenerator generator = FACTORY.createGenerator(writer); LogstashMarker marker = Markers.appendEntries(map); generator.writeStartObject(); marker.writeTo(generator); generator.writeEndObject(); generator.flush(); assertThat(writer.toString()).isEqualTo("{\"myField\":\"value\"}"); } @Test public void testEquals() { Map<String, String> map = new HashMap<String, String>(); assertThat(Markers.appendEntries(map)).isEqualTo(Markers.appendEntries(map)); Map<String, String> map2 = new HashMap<String, String>(); map2.put("foo", "bar"); assertThat(Markers.appendEntries(map)).isNotEqualTo(Markers.appendEntries(map2)); } @Test public void testHashCode() { Map<String, String> map = new HashMap<String, String>(); assertThat(Markers.appendEntries(map).hashCode()).isEqualTo(Markers.appendEntries(map).hashCode()); Map<String, String> map2 = new HashMap<String, String>(); map2.put("foo", "bar"); assertThat(Markers.appendEntries(map).hashCode()).isNotEqualTo(Markers.appendEntries(map2).hashCode()); } }