| /* |
| * 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.sidecar.utils; |
| |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.file.Path; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| import java.util.Base64; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ThreadLocalRandom; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.junit.jupiter.api.BeforeAll; |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.io.TempDir; |
| |
| import io.vertx.core.Future; |
| import io.vertx.core.Vertx; |
| import io.vertx.core.file.AsyncFile; |
| import io.vertx.core.file.FileSystem; |
| |
| import static org.assertj.core.api.Assertions.assertThat; |
| import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| |
| /** |
| * Unit tests for {@link MD5ChecksumVerifier} |
| */ |
| class MD5ChecksumVerifierTest |
| { |
| static Vertx vertx; |
| static ExposeAsyncFileMD5ChecksumVerifier verifier; |
| |
| @TempDir |
| Path tempDir; |
| |
| @BeforeAll |
| static void setup() |
| { |
| vertx = Vertx.vertx(); |
| verifier = new ExposeAsyncFileMD5ChecksumVerifier(vertx.fileSystem()); |
| } |
| |
| @Test |
| void testFileDescriptorsClosedWithValidChecksum() throws IOException, NoSuchAlgorithmException, |
| InterruptedException |
| { |
| byte[] randomBytes = generateRandomBytes(); |
| Path randomFilePath = writeBytesToRandomFile(randomBytes); |
| String expectedChecksum = Base64.getEncoder() |
| .encodeToString(MessageDigest.getInstance("MD5") |
| .digest(randomBytes)); |
| |
| runTestScenario(randomFilePath, expectedChecksum); |
| } |
| |
| @Test |
| void testFileDescriptorsClosedWithInvalidChecksum() throws IOException, InterruptedException |
| { |
| Path randomFilePath = writeBytesToRandomFile(generateRandomBytes()); |
| runTestScenario(randomFilePath, "invalid"); |
| } |
| |
| private void runTestScenario(Path filePath, String checksum) throws InterruptedException |
| { |
| CountDownLatch latch = new CountDownLatch(1); |
| verifier.verify(checksum, filePath.toAbsolutePath().toString()) |
| .onComplete(complete -> latch.countDown()); |
| |
| assertThat(latch.await(2, TimeUnit.SECONDS)).isTrue(); |
| |
| assertThat(verifier.file).isNotNull(); |
| // we can't close the file if it's already closed, so we expect the exception here |
| assertThatThrownBy(() -> verifier.file.end()) |
| .isInstanceOf(IllegalStateException.class) |
| .hasMessageContaining("File handle is closed"); |
| } |
| |
| private byte[] generateRandomBytes() |
| { |
| byte[] bytes = new byte[1024]; |
| ThreadLocalRandom.current().nextBytes(bytes); |
| return bytes; |
| } |
| |
| private Path writeBytesToRandomFile(byte[] bytes) throws IOException |
| { |
| Path tempPath = tempDir.resolve("random-file.txt"); |
| try (RandomAccessFile writer = new RandomAccessFile(tempPath.toFile(), "rw")) |
| { |
| writer.write(bytes); |
| } |
| return tempPath; |
| } |
| |
| /** |
| * Class that extends from {@link MD5ChecksumVerifier} for testing purposes and holds a reference to the |
| * {@link AsyncFile} to ensure that the file has been closed. |
| */ |
| static class ExposeAsyncFileMD5ChecksumVerifier extends MD5ChecksumVerifier |
| { |
| AsyncFile file; |
| |
| public ExposeAsyncFileMD5ChecksumVerifier(FileSystem fs) |
| { |
| super(fs); |
| } |
| |
| @Override |
| Future<String> calculateMD5(AsyncFile file) |
| { |
| this.file = file; |
| return super.calculateMD5(file); |
| } |
| } |
| } |