| /* |
| * 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.cassandra.io.compress; |
| |
| |
| import org.junit.Test; |
| |
| import org.apache.cassandra.io.util.File; |
| import org.apache.cassandra.io.util.Memory; |
| import org.apache.cassandra.schema.CompressionParams; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatExceptionOfType; |
| |
| public class CompressionMetadataTest |
| { |
| File chunksIndexFile = new File("/path/to/metadata"); |
| CompressionParams params = CompressionParams.zstd(); |
| long dataLength = 1000; |
| long compressedFileLength = 100; |
| |
| private CompressionMetadata newCompressionMetadata(Memory memory) |
| { |
| return new CompressionMetadata(chunksIndexFile, |
| params, |
| memory, |
| memory.size(), |
| dataLength, |
| compressedFileLength); |
| } |
| |
| @Test |
| public void testMemoryIsFreed() |
| { |
| Memory memory = Memory.allocate(10); |
| CompressionMetadata cm = newCompressionMetadata(memory); |
| |
| cm.close(); |
| assertThat(cm.isCleanedUp()).isTrue(); |
| assertThatExceptionOfType(AssertionError.class).isThrownBy(memory::size); |
| } |
| |
| @Test |
| public void testMemoryIsShared() |
| { |
| Memory memory = Memory.allocate(10); |
| CompressionMetadata cm = newCompressionMetadata(memory); |
| |
| CompressionMetadata copy = cm.sharedCopy(); |
| assertThat(copy).isNotSameAs(cm); |
| |
| cm.close(); |
| assertThat(cm.isCleanedUp()).isFalse(); |
| assertThat(copy.isCleanedUp()).isFalse(); |
| assertThat(memory.size()).isEqualTo(10); // expected that no expection is thrown since memory should not be released yet |
| |
| copy.close(); |
| assertThat(cm.isCleanedUp()).isTrue(); |
| assertThat(copy.isCleanedUp()).isTrue(); |
| assertThatExceptionOfType(AssertionError.class).isThrownBy(memory::size); |
| } |
| } |