lib/java/src/test/java/org/apache/thrift/transport/TestAutoExpandingBuffer.java


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/*
 * 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.thrift.transport;

import junit.framework.TestCase;

public class TestAutoExpandingBuffer extends TestCase {
  public void testExpands() throws Exception {
    // has expected initial capacity
    AutoExpandingBuffer b = new AutoExpandingBuffer(10);
    assertEquals(10, b.array().length);

    // doesn't shrink
    b.resizeIfNecessary(8);
    assertEquals(10, b.array().length);

    // grows when more capacity is needed
    b.resizeIfNecessary(100);
    assertTrue(b.array().length >= 100);
  }
}