hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/services/TestQueryParams.java

/**
 * 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.services;

import java.util.HashMap;
import java.util.Map;

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

import org.apache.hadoop.fs.azurebfs.oauth2.QueryParams;
/**
 * Test query params serialization.
 */
public class TestQueryParams {
  private static final String SEPARATOR = "&";
  private static final String[][] PARAM_ARRAY = {{"K0", "V0"}, {"K1", "V1"}, {"K2", "V2"}};

  @Test
  public void testOneParam() {
    String key = PARAM_ARRAY[0][0];
    String value = PARAM_ARRAY[0][1];

    Map<String, String> paramMap = new HashMap<>();
    paramMap.put(key, value);

    QueryParams qp = new QueryParams();
    qp.add(key, value);
    Assert.assertEquals(key + "=" + value, qp.serialize());
  }

  @Test
  public void testMultipleParams() {
    QueryParams qp = new QueryParams();
    for (String[] entry : PARAM_ARRAY) {
      qp.add(entry[0], entry[1]);
    }
    Map<String, String> paramMap = constructMap(qp.serialize());
    Assert.assertEquals(PARAM_ARRAY.length, paramMap.size());

    for (String[] entry : PARAM_ARRAY) {
      Assert.assertTrue(paramMap.containsKey(entry[0]));
      Assert.assertEquals(entry[1], paramMap.get(entry[0]));
    }
  }

  private Map<String, String> constructMap(String input) {
    String[] entries = input.split(SEPARATOR);
    Map<String, String> paramMap = new HashMap<>();
    for (String entry : entries) {
      String[] keyValue = entry.split("=");
      paramMap.put(keyValue[0], keyValue[1]);
    }
    return paramMap;
  }

}