/**
 * 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.azurebfs;

import java.util.UUID;

import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;

import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.azurebfs.contracts.exceptions.AbfsRestOperationException;
import org.apache.hadoop.fs.azurebfs.services.AbfsClient;
import org.apache.hadoop.fs.azurebfs.services.AbfsRestOperation;

import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY;
import static org.apache.hadoop.fs.azurebfs.constants.TestConfigurationKeys.FS_AZURE_ACCOUNT_KEY;
import static org.apache.hadoop.test.LambdaTestUtils.intercept;

/**
 * Test continuation token which has equal sign.
 */
public final class ITestAbfsClient extends AbstractAbfsIntegrationTest {
  private static final int LIST_MAX_RESULTS = 500;

  public ITestAbfsClient() throws Exception {
    super();
  }

  @Test
  public void testContinuationTokenHavingEqualSign() throws Exception {
    final AzureBlobFileSystem fs = this.getFileSystem();
    AbfsClient abfsClient =  fs.getAbfsClient();

    try {
      AbfsRestOperation op = abfsClient.listPath("/", true, LIST_MAX_RESULTS, "===========");
      Assert.assertTrue(false);
    } catch (AbfsRestOperationException ex) {
      Assert.assertEquals("InvalidQueryParameterValue", ex.getErrorCode().getErrorCode());
    }
  }

  @Ignore("Enable this to verify the log warning message format for HostNotFoundException")
  @Test
  public void testUnknownHost() throws Exception {
    // When hitting hostName not found exception, the retry will take about 14 mins until failed.
    // This test is to verify that the "Unknown host name: %s. Retrying to resolve the host name..." is logged as warning during the retry.
    AbfsConfiguration conf = this.getConfiguration();
    String accountName = this.getAccountName();
    String fakeAccountName = "fake" + UUID.randomUUID() + accountName.substring(accountName.indexOf("."));

    String fsDefaultFS = conf.get(FS_DEFAULT_NAME_KEY);
    conf.set(FS_DEFAULT_NAME_KEY, fsDefaultFS.replace(accountName, fakeAccountName));
    conf.set(FS_AZURE_ACCOUNT_KEY + "." + fakeAccountName, this.getAccountKey());

    intercept(AbfsRestOperationException.class,
            "UnknownHostException: " + fakeAccountName,
            () -> FileSystem.get(conf.getRawConfiguration()));
  }
}

@@ -1684,16 +1684,178 @@
 );%0A  %7D%0A%0A
+  @Ignore(%22HADOOP-16845: Invalid continuation tokens are ignored by the ADLS %22%0A      + %22Gen2 service, so we are disabling this test until the service is fixed.%22)%0A
   @Test%0A

Disable ITestAbfsClient.testContinuationTokenHavingEqualSign due to ADLS Gen2 service bug. Contributed by Sneha Vijayarajan.