bpahuja commented on code in PR #6407:
URL: https://github.com/apache/hadoop/pull/6407#discussion_r1487351924


##########
hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/list/ITestS3AReadRestoredGlacierObjects.java:
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@@ -0,0 +1,181 @@
+/*
+ * 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.hadoop.fs.s3a.list;
+
+import static org.apache.hadoop.fs.s3a.Constants.READ_RESTORED_GLACIER_OBJECTS;
+import static org.apache.hadoop.fs.s3a.Constants.STORAGE_CLASS;
+import static org.apache.hadoop.fs.s3a.Constants.STORAGE_CLASS_DEEP_ARCHIVE;
+import static org.apache.hadoop.fs.s3a.Constants.STORAGE_CLASS_GLACIER;
+import static org.apache.hadoop.fs.s3a.S3ATestUtils.disableFilesystemCaching;
+import static 
org.apache.hadoop.fs.s3a.S3ATestUtils.removeBaseAndBucketOverrides;
+import static 
org.apache.hadoop.fs.s3a.S3ATestUtils.skipIfStorageClassTestsDisabled;
+import static 
org.apache.hadoop.fs.statistics.StoreStatisticNames.OBJECT_LIST_REQUEST;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collection;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.contract.ContractTestUtils;
+import org.apache.hadoop.fs.contract.s3a.S3AContract;
+import org.apache.hadoop.fs.s3a.AbstractS3ATestBase;
+import org.apache.hadoop.fs.s3a.S3ListRequest;
+import org.apache.hadoop.fs.s3a.S3ObjectStorageClassFilter;
+import org.apache.hadoop.fs.store.audit.AuditSpan;
+import org.apache.hadoop.test.LambdaTestUtils;
+import org.assertj.core.api.Assertions;
+import org.junit.Assume;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.RestoreObjectRequest;
+import software.amazon.awssdk.services.s3.model.S3Object;
+import software.amazon.awssdk.services.s3.model.Tier;
+
+/**
+ * Tests of various cases related to Glacier/Deep Archive Storage class.
+ */
+@RunWith(Parameterized.class)
+public class ITestS3AReadRestoredGlacierObjects extends AbstractS3ATestBase {
+
+  enum Type { GLACIER_AND_DEEP_ARCHIVE, GLACIER }
+
+  @Parameterized.Parameters(name = "storage-class-{1}")
+  public static Collection<Object[]> data(){
+    return Arrays.asList(new Object[][] {
+        {Type.GLACIER_AND_DEEP_ARCHIVE, STORAGE_CLASS_GLACIER},
+        {Type.GLACIER_AND_DEEP_ARCHIVE, STORAGE_CLASS_DEEP_ARCHIVE},
+        {Type.GLACIER, STORAGE_CLASS_GLACIER}
+    });
+  }
+
+  private final int maxRetries = 100;
+  private final int retryDelayMs = 5000;
+
+  private final Type type;
+  private final String glacierClass;
+
+  public ITestS3AReadRestoredGlacierObjects(Type type, String glacierClass) {
+    this.type = type;
+    this.glacierClass = glacierClass;
+  }
+
+  private FileSystem createFiles(String s3ObjectStorageClassFilter) throws 
Throwable {
+    Configuration conf = this.createConfiguration();
+    conf.set(READ_RESTORED_GLACIER_OBJECTS, s3ObjectStorageClassFilter);
+    // Create Glacier objects:Storage Class:DEEP_ARCHIVE/GLACIER
+    conf.set(STORAGE_CLASS, glacierClass);
+    S3AContract contract = (S3AContract) createContract(conf);
+    contract.init();
+
+    FileSystem fs = contract.getTestFileSystem();
+    Path dir = methodPath();
+    fs.mkdirs(dir);
+    Path path = new Path(dir, "file1");

Review Comment:
   Sure



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