content: /*
   * 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
   *
   * https://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.trevni;
  
  import java.util.Random;
  import java.util.Arrays;
  
  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
  
  import org.junit.jupiter.api.Test;
  
  public class TestInputBytes {
  
    private static final int SIZE = 1000;
    private static final int COUNT = 100;
  
    @Test
    void randomReads() throws Exception {
      Random random = new Random(19820210);
      int length = random.nextInt(SIZE) + 1;
      byte[] data = new byte[length];
      random.nextBytes(data);
  
      Input in = new InputBytes(data);
  
      for (int i = 0; i < COUNT; i++) {
        int p = random.nextInt(length);
        int l = Math.min(random.nextInt(SIZE / 10), length - p);
        byte[] buffer = new byte[l];
        in.read(p, buffer, 0, l);
        assertArrayEquals(Arrays.copyOfRange(data, p, p + l), buffer);
      }
      in.close();
    }
  }
  