TestListTables.java

/**
 * Copyright 2007 The Apache Software Foundation
 *
 * 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.hbase;

import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;

/**
 * Tests the listTables client API
 */
public class TestListTables extends HBaseClusterTestCase {
  HBaseAdmin admin = null;
  
  private static final HTableDescriptor[] tables = {
      new HTableDescriptor("table1"),
      new HTableDescriptor("table2"),
      new HTableDescriptor("table3")
  };
  
  /** {@inheritDoc} */
  @Override
  public void setUp() throws Exception {
    super.setUp();
    
    admin = new HBaseAdmin(conf);

    HColumnDescriptor family =
      new HColumnDescriptor(HConstants.COLUMN_FAMILY_STR);
    
    for (int i = 0; i < tables.length; i++) {
      tables[i].addFamily(family);
      admin.createTable(tables[i]);
    }
  }

  /**
   * the test
   * @throws IOException
   */
  public void testListTables() throws IOException {
    HashSet<HTableDescriptor> result =
      new HashSet<HTableDescriptor>(Arrays.asList(admin.listTables()));
    
    int size = result.size();
    assertEquals(tables.length, size);
    for (int i = 0; i < tables.length && i < size; i++) {
      assertTrue(result.contains(tables[i]));
    }
  }
}