gnodet-bot commented on code in PR #28072: URL: https://github.com/apache/camel/pull/28072#discussion_r4309409186
########## components/camel-azure/camel-azure-files/src/test/java/org/apache/camel/component/file/azure/FilesOperationsResumeDownloadTest.java: ########## @@ -0,0 +1,228 @@ +/* + * 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.camel.component.file.azure; + +import java.lang.reflect.Field; +import java.nio.ByteBuffer; +import java.nio.charset.Charset; +import java.nio.charset.StandardCharsets; +import java.nio.file.Files; +import java.nio.file.Path; +import java.util.ArrayDeque; +import java.util.Arrays; +import java.util.List; +import java.util.concurrent.CopyOnWriteArrayList; + +import com.azure.core.http.HttpClient; +import com.azure.core.http.HttpHeaderName; +import com.azure.core.http.HttpHeaders; +import com.azure.core.http.HttpRequest; +import com.azure.core.http.HttpResponse; +import com.azure.storage.common.policy.RequestRetryOptions; +import com.azure.storage.file.share.ShareDirectoryClient; +import com.azure.storage.file.share.ShareServiceClient; +import com.azure.storage.file.share.ShareServiceClientBuilder; +import com.azure.storage.file.share.models.ShareFileItem; +import org.apache.camel.Exchange; +import org.apache.camel.component.file.FileComponent; +import org.apache.camel.component.file.remote.RemoteFile; +import org.apache.camel.support.DefaultExchange; +import org.apache.camel.test.junit6.CamelTestSupport; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.io.TempDir; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; + +import static org.junit.jupiter.api.Assertions.assertEquals; +import static org.junit.jupiter.api.Assertions.assertFalse; +import static org.junit.jupiter.api.Assertions.assertTrue; + +/** + * resumeDownload=true continues an interrupted download with a ranged GET, which the file service answers with 206 + * Partial Content. The fake service below answers like Azure Files: 200 without a range, 206 with a range that starts + * inside the file and 416 with a range that starts at or after its end. + */ +public class FilesOperationsResumeDownloadTest extends CamelTestSupport { + + private static final byte[] CONTENT = "0123456789".getBytes(StandardCharsets.US_ASCII); + + @TempDir + Path workDir; + + @Test + void resumedDownloadIsCompletedAndRenamed() throws Exception { + FakeFileService service = new FakeFileService(); + FilesOperations operations = operations(service); + // a previous download of the file was interrupted after 4 bytes + Files.write(workDir.resolve("hello.txt.inprogress"), Arrays.copyOf(CONTENT, 4)); + + boolean retrieved = operations.retrieveFile("hello.txt", exchange(), CONTENT.length); + + assertEquals(List.of("bytes=4-"), service.ranges, "the download is resumed with a range"); + assertTrue(retrieved, "a resumed download that returned the rest of the file must be retrieved"); + assertEquals("0123456789", Files.readString(workDir.resolve("hello.txt"), StandardCharsets.US_ASCII)); + assertFalse(Files.exists(workDir.resolve("hello.txt.inprogress"))); + } + + @Test + void downloadWithoutPartialFileIsRetrieved() throws Exception { + FakeFileService service = new FakeFileService(); + FilesOperations operations = operations(service); + + boolean retrieved = operations.retrieveFile("hello.txt", exchange(), CONTENT.length); + + assertEquals(1, service.ranges.size()); + assertEquals("none", service.ranges.get(0)); + assertTrue(retrieved); + assertEquals("0123456789", Files.readString(workDir.resolve("hello.txt"), StandardCharsets.US_ASCII)); + } Review Comment: 💡 **Missing test: 416 / already-complete path** `FakeFileService` correctly returns 416 when `start >= CONTENT.length` (lines 188–198), but neither test exercises this branch. Consider adding: ```java @Test void downloadAlreadyCompleteReturnsTrue() throws Exception { FakeFileService service = new FakeFileService(); FilesOperations operations = operations(service); // .inprogress file already has the full content Files.write(workDir.resolve("hello.txt.inprogress"), CONTENT); boolean retrieved = operations.retrieveFile("hello.txt", exchange(), CONTENT.length); assertEquals(List.of("bytes=10-"), service.ranges, "a full .inprogress should still attempt a range request"); assertTrue(retrieved, "a 416 response for a complete file should be treated as success"); assertEquals("0123456789", Files.readString(workDir.resolve("hello.txt"), StandardCharsets.US_ASCII)); assertFalse(Files.exists(workDir.resolve("hello.txt.inprogress"))); } ``` This validates that the 416 response is handled gracefully and the file is finalised correctly. -- This is an automated message from the Apache Git Service. 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