Fix aws-node-sdk range tests after enabling suite.

Handle SDK v3 GetObject stream bodies before writing to disk and return UploadPart responses so MPU completion receives valid ETag values.

Author: benzekrimaha

tests/functional/aws-node-sdk/test/object/rangeTest.js

@@ -24,6 +24,14 @@ const execAsync = promisify(exec);
 const execFileAsync = promisify(execFile);
 const writeFileAsync = promisify(writeFile);
 
+async function streamToBuffer(stream) {
+    const chunks = [];
+    for await (const chunk of stream) {
+        chunks.push(Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk));
+    }
+    return Buffer.concat(chunks);
+}
+
 // Get the expected end values for various ranges (e.g., '-10', '10-', '-')
 function getOuterRange(range, bytes) {
     const arr = range.split('-');
@@ -62,11 +70,11 @@ function checkRanges(range, bytes) {
         assert.deepStrictEqual(res.ContentType, 'application/octet-stream');
         assert.deepStrictEqual(res.Metadata, {});
 
-        // Write a file using the buffer so getRangeExec can then check bytes.
-        // If the getRangeExec program fails, then the range is incorrect.
-        return writeFileAsync(`hashedFile.${bytes}.${range}`, res.Body)
-        .then(() => execFileAsync('./getRangeExec', ['--check', '--size', total,
-            '--offset', begin, `hashedFile.${bytes}.${range}`]));
+        // SDK v3 returns a stream body: convert before writing to disk.
+        return streamToBuffer(res.Body)
+            .then(bodyBuffer => writeFileAsync(`hashedFile.${bytes}.${range}`, bodyBuffer))
+            .then(() => execFileAsync('./getRangeExec', ['--check', '--size', total,
+                '--offset', begin, `hashedFile.${bytes}.${range}`]));
     });
 }
 
@@ -82,7 +90,7 @@ async function uploadParts(bytes, uploadId) {
                 `skip=${part - 1}`,
                 'count=1',
             ]);
-            await s3.send(new UploadPartCommand({
+            return s3.send(new UploadPartCommand({
                 Bucket: bucket,
                 Key: key,
                 PartNumber: part,