| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.ambari.metrics.core.loadsimulator.data; |
| |
| import org.apache.ambari.metrics.core.loadsimulator.util.Json; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.entry; |
| import static org.junit.Assert.assertEquals; |
| |
| public class TestMetric { |
| private static final String SAMPLE_METRIC_IN_JSON = "{\n" + |
| " \"instanceid\" : \"\",\n" + |
| " \"hostname\" : \"localhost\",\n" + |
| " \"metrics\" : {\n" + |
| " \"0\" : \"5.35\",\n" + |
| " \"5000\" : \"5.35\",\n" + |
| " \"10000\" : \"5.35\",\n" + |
| " \"15000\" : \"5.35\"\n" + |
| " },\n" + |
| " \"starttime\" : \"0\",\n" + |
| " \"appid\" : \"HOST\",\n" + |
| " \"metricname\" : \"disk_free\"\n" + |
| "}"; |
| |
| @Test |
| public void testSerializeToJson() throws IOException { |
| Metric diskOnHostMetric = new Metric(new ApplicationInstance("localhost", AppID.HOST, ""), "disk_free", 0); |
| |
| long timestamp = 0; |
| double value = 5.35; |
| |
| diskOnHostMetric.putMetric(timestamp, Double.toString(value)); |
| diskOnHostMetric.putMetric(timestamp + 5000, Double.toString(value)); |
| diskOnHostMetric.putMetric(timestamp + 10000, Double.toString(value)); |
| diskOnHostMetric.putMetric(timestamp + 15000, Double.toString(value)); |
| |
| String expected = SAMPLE_METRIC_IN_JSON; |
| String s = new Json(true).serialize(diskOnHostMetric); |
| |
| assertEquals("Json should match", expected, s); |
| } |
| |
| @Test |
| public void testDeserializeObjectFromString() throws IOException { |
| String source = SAMPLE_METRIC_IN_JSON; |
| |
| Metric m = new Json().deserialize(source, Metric.class); |
| |
| assertEquals("localhost", m.getHostname()); |
| assertEquals("HOST", m.getAppid()); |
| assertEquals("", m.getInstanceid()); |
| assertEquals("disk_free", m.getMetricname()); |
| assertEquals("0", m.getStarttime()); |
| |
| assertThat(m.getMetrics()).isNotEmpty().hasSize(4).contains( |
| entry("0", "5.35"), |
| entry("5000", "5.35"), |
| entry("10000", "5.35"), |
| entry("15000", "5.35")); |
| } |
| } |