| /* |
| * 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.beam.sdk.metrics; |
| |
| import static org.junit.Assert.assertNull; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.verifyNoMoreInteractions; |
| import static org.mockito.Mockito.when; |
| |
| import org.junit.After; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| import org.mockito.Mockito; |
| |
| /** Tests for {@link MetricsEnvironment}. */ |
| @RunWith(JUnit4.class) |
| public class MetricsEnvironmentTest { |
| @After |
| public void teardown() { |
| MetricsEnvironment.setCurrentContainer(null); |
| } |
| |
| @Test |
| public void testUsesAppropriateMetricsContainer() { |
| Counter counter = Metrics.counter("ns", "name"); |
| |
| MetricsContainer c1 = Mockito.mock(MetricsContainer.class); |
| MetricsContainer c2 = Mockito.mock(MetricsContainer.class); |
| Counter counter1 = Mockito.mock(Counter.class); |
| Counter counter2 = Mockito.mock(Counter.class); |
| when(c1.getCounter(MetricName.named("ns", "name"))).thenReturn(counter1); |
| when(c2.getCounter(MetricName.named("ns", "name"))).thenReturn(counter2); |
| |
| MetricsEnvironment.setCurrentContainer(c1); |
| counter.inc(); |
| MetricsEnvironment.setCurrentContainer(c2); |
| counter.dec(); |
| MetricsEnvironment.setCurrentContainer(null); |
| |
| verify(counter1).inc(1L); |
| verify(counter2).inc(-1L); |
| verifyNoMoreInteractions(counter1, counter2); |
| } |
| |
| @Test |
| public void testBehavesWithoutMetricsContainer() { |
| assertNull(MetricsEnvironment.getCurrentContainer()); |
| } |
| } |