| /** |
| * 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.hadoop.metrics2.impl; |
| |
| import java.util.List; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| import org.junit.runner.RunWith; |
| |
| import static org.mockito.Mockito.*; |
| import org.mockito.ArgumentCaptor; |
| import org.mockito.Captor; |
| import org.mockito.runners.MockitoJUnitRunner; |
| |
| import org.apache.hadoop.metrics2.MetricsVisitor; |
| import org.apache.hadoop.metrics2.AbstractMetric; |
| import org.apache.hadoop.metrics2.MetricsInfo; |
| import static org.apache.hadoop.metrics2.lib.Interns.*; |
| import org.apache.hadoop.metrics2.lib.MetricsRegistry; |
| |
| /** |
| * Test the metric visitor interface |
| */ |
| @RunWith(MockitoJUnitRunner.class) |
| public class TestMetricsVisitor { |
| @Captor private ArgumentCaptor<MetricsInfo> c1; |
| @Captor private ArgumentCaptor<MetricsInfo> c2; |
| @Captor private ArgumentCaptor<MetricsInfo> g1; |
| @Captor private ArgumentCaptor<MetricsInfo> g2; |
| @Captor private ArgumentCaptor<MetricsInfo> g3; |
| @Captor private ArgumentCaptor<MetricsInfo> g4; |
| |
| /** |
| * Test the common use cases |
| */ |
| @Test public void testCommon() { |
| MetricsVisitor visitor = mock(MetricsVisitor.class); |
| MetricsRegistry registry = new MetricsRegistry("test"); |
| List<AbstractMetric> metrics = MetricsLists.builder("test") |
| .addCounter(info("c1", "int counter"), 1) |
| .addCounter(info("c2", "long counter"), 2L) |
| .addGauge(info("g1", "int gauge"), 5) |
| .addGauge(info("g2", "long gauge"), 6L) |
| .addGauge(info("g3", "float gauge"), 7f) |
| .addGauge(info("g4", "double gauge"), 8d) |
| .metrics(); |
| |
| for (AbstractMetric metric : metrics) { |
| metric.visit(visitor); |
| } |
| |
| verify(visitor).counter(c1.capture(), eq(1)); |
| assertEquals("c1 name", "c1", c1.getValue().name()); |
| assertEquals("c1 description", "int counter", c1.getValue().description()); |
| verify(visitor).counter(c2.capture(), eq(2L)); |
| assertEquals("c2 name", "c2", c2.getValue().name()); |
| assertEquals("c2 description", "long counter", c2.getValue().description()); |
| verify(visitor).gauge(g1.capture(), eq(5)); |
| assertEquals("g1 name", "g1", g1.getValue().name()); |
| assertEquals("g1 description", "int gauge", g1.getValue().description()); |
| verify(visitor).gauge(g2.capture(), eq(6L)); |
| assertEquals("g2 name", "g2", g2.getValue().name()); |
| assertEquals("g2 description", "long gauge", g2.getValue().description()); |
| verify(visitor).gauge(g3.capture(), eq(7f)); |
| assertEquals("g3 name", "g3", g3.getValue().name()); |
| assertEquals("g3 description", "float gauge", g3.getValue().description()); |
| verify(visitor).gauge(g4.capture(), eq(8d)); |
| assertEquals("g4 name", "g4", g4.getValue().name()); |
| assertEquals("g4 description", "double gauge", g4.getValue().description()); |
| } |
| |
| } |