/* * 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.yarn; import org.apache.flink.util.TestLogger; import org.apache.hadoop.util.VersionInfo; import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse; import org.apache.hadoop.yarn.api.records.Container; import org.junit.Before; import org.junit.Test; import org.mockito.Mock; import org.mockito.MockitoAnnotations; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.Collections; import java.util.EnumSet; import java.util.List; import java.util.Optional; import java.util.Set; import static org.apache.flink.yarn.YarnTestUtils.isHadoopVersionGreaterThanOrEquals; import static org.hamcrest.Matchers.containsInAnyOrder; import static org.hamcrest.Matchers.empty; import static org.hamcrest.Matchers.hasSize; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertThat; import static org.junit.Assert.assertTrue; import static org.junit.Assume.assumeTrue; /** * Tests for {@link RegisterApplicationMasterResponseReflector}. */ public class RegisterApplicationMasterResponseReflectorTest extends TestLogger { private static final Logger LOG = LoggerFactory.getLogger(RegisterApplicationMasterResponseReflectorTest.class); @Mock private Container mockContainer; @Before public void setUp() { MockitoAnnotations.initMocks(this); } @Test public void testCallsGetContainersFromPreviousAttemptsMethodIfPresent() { final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG, HasMethod.class); final List<Container> containersFromPreviousAttemptsUnsafe = registerApplicationMasterResponseReflector.getContainersFromPreviousAttemptsUnsafe(new HasMethod()); assertThat(containersFromPreviousAttemptsUnsafe, hasSize(1)); } @Test public void testDoesntCallGetContainersFromPreviousAttemptsMethodIfAbsent() { final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG, HasMethod.class); final List<Container> containersFromPreviousAttemptsUnsafe = registerApplicationMasterResponseReflector.getContainersFromPreviousAttemptsUnsafe(new Object()); assertThat(containersFromPreviousAttemptsUnsafe, empty()); } @Test public void testGetContainersFromPreviousAttemptsMethodReflectiveHadoop22() { assumeTrue( "Method getContainersFromPreviousAttempts is not supported by Hadoop: " + VersionInfo.getVersion(), isHadoopVersionGreaterThanOrEquals(2, 2)); final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG); assertTrue(registerApplicationMasterResponseReflector.getGetContainersFromPreviousAttemptsMethod().isPresent()); } @Test public void testCallsGetSchedulerResourceTypesMethodIfPresent() { final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG, HasMethod.class); final Optional<Set<String>> schedulerResourceTypeNames = registerApplicationMasterResponseReflector.getSchedulerResourceTypeNamesUnsafe(new HasMethod()); assertTrue(schedulerResourceTypeNames.isPresent()); assertThat(schedulerResourceTypeNames.get(), containsInAnyOrder("MEMORY", "CPU")); } @Test public void testDoesntCallGetSchedulerResourceTypesMethodIfAbsent() { final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG, HasMethod.class); final Optional<Set<String>> schedulerResourceTypeNames = registerApplicationMasterResponseReflector.getSchedulerResourceTypeNamesUnsafe(new Object()); assertFalse(schedulerResourceTypeNames.isPresent()); } @Test public void testGetSchedulerResourceTypesMethodReflectiveHadoop26() { assumeTrue( "Method getSchedulerResourceTypes is not supported by Hadoop: " + VersionInfo.getVersion(), isHadoopVersionGreaterThanOrEquals(2, 6)); final RegisterApplicationMasterResponseReflector registerApplicationMasterResponseReflector = new RegisterApplicationMasterResponseReflector(LOG); assertTrue(registerApplicationMasterResponseReflector.getGetSchedulerResourceTypesMethod().isPresent()); } /** * Class which has a method with the same signature as * {@link RegisterApplicationMasterResponse#getContainersFromPreviousAttempts()}. */ private class HasMethod { /** * Called from {@link #testCallsGetContainersFromPreviousAttemptsMethodIfPresent()}. */ @SuppressWarnings("unused") public List<Container> getContainersFromPreviousAttempts() { return Collections.singletonList(mockContainer); } /** * Called from {@link #testCallsGetSchedulerResourceTypesMethodIfPresent()}. */ @SuppressWarnings("unused") public EnumSet<MockSchedulerResourceTypes> getSchedulerResourceTypes() { return EnumSet.allOf(MockSchedulerResourceTypes.class); } } @SuppressWarnings("unused") private enum MockSchedulerResourceTypes { MEMORY, CPU } }