1u0 commented on a change in pull request #6976: [FLINK-7155][metrics] Add new metrics reporter to InfluxDB URL: https://github.com/apache/flink/pull/6976#discussion_r232254767
########## File path: flink-metrics/flink-metrics-influxdb/src/test/java/org/apache/flink/metrics/influxdb/MetricMapperTest.java ########## @@ -0,0 +1,141 @@ +/* + * 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.flink.metrics.influxdb; + +import org.apache.flink.metrics.Counter; +import org.apache.flink.metrics.Gauge; +import org.apache.flink.metrics.Histogram; +import org.apache.flink.metrics.HistogramStatistics; +import org.apache.flink.metrics.Meter; + +import org.influxdb.dto.Point; +import org.junit.Test; + +import java.time.Instant; +import java.util.HashMap; +import java.util.Map; + +import static org.junit.Assert.assertEquals; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; + +/** + * Test for {@link MetricMapper} checking that metrics are converted to InfluxDB client objects as expected. + */ +public class MetricMapperTest { + + private final String name = "a-metric-name"; + private final MeasurementInfo info = getMeasurementInfo(name); + private final Instant timestamp = Instant.now(); + + @Test + public void testMapGauge() { + verifyPoint( + MetricMapper.map(info, timestamp, (Gauge<Number>) () -> 42), + "value=42"); + + verifyPoint( + MetricMapper.map(info, timestamp, (Gauge<Number>) () -> null), + "value=null"); + + verifyPoint( + MetricMapper.map(info, timestamp, (Gauge<String>) () -> "hello"), + "value=hello"); + + verifyPoint( + MetricMapper.map(info, timestamp, (Gauge<Long>) () -> 42L), + "value=42"); + } + + @Test + public void testMapCounter() { + Counter counter = mock(Counter.class); + when(counter.getCount()).thenReturn(42L); + + verifyPoint( + MetricMapper.map(info, timestamp, counter), + "count=42"); + } + + @Test + public void testMapHistogram() { + HistogramStatistics statistics = mock(HistogramStatistics.class); Review comment: Are there any reasons to not use mocks in this test class? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
