mirror of https://github.com/apache/cassandra
63 lines
2.2 KiB
Java
63 lines
2.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.utils;
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import java.nio.file.Paths;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.apache.cassandra.config.DatabaseDescriptor;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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public class HeapUtilsTest
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{
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@BeforeClass
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public static void setup()
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{
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DatabaseDescriptor.daemonInitialization();
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}
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@Test
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public void shouldDumpHeapWithPathArgSpecified()
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{
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DatabaseDescriptor.setDumpHeapOnUncaughtException(true);
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String path = HeapUtils.maybeCreateHeapDump();
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assertNotNull(path);
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assertTrue(Paths.get(path).toFile().exists());
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assertFalse(DatabaseDescriptor.getDumpHeapOnUncaughtException());
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// After the first dump, subsequent requests should be no-ops...
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path = HeapUtils.maybeCreateHeapDump();
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assertNull(path);
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// ...until creation is manually re-enabled.
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DatabaseDescriptor.setDumpHeapOnUncaughtException(true);
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assertTrue(DatabaseDescriptor.getDumpHeapOnUncaughtException());
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assertNotNull(DatabaseDescriptor.getHeapDumpPath());
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path = HeapUtils.maybeCreateHeapDump();
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assertNotNull(path);
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assertTrue(Paths.get(path).toFile().exists());
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assertFalse(DatabaseDescriptor.getDumpHeapOnUncaughtException());
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}
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} |