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
   *
   *     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 com.datastax.oss.driver.internal.core.type.util;
  
  import static org.junit.Assert.assertEquals;
  
  import com.tngtech.java.junit.dataprovider.DataProvider;
  import com.tngtech.java.junit.dataprovider.DataProviderRunner;
  import com.tngtech.java.junit.dataprovider.UseDataProvider;
  import java.nio.ByteBuffer;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  @RunWith(DataProviderRunner.class)
  public class VIntCodingTest {
    @DataProvider
    public static Object[] roundTripTestValues() {
      return new Integer[] {
        Integer.MAX_VALUE + 1,
        Integer.MAX_VALUE,
        Integer.MAX_VALUE - 1,
        Integer.MIN_VALUE,
        Integer.MIN_VALUE + 1,
        Integer.MIN_VALUE - 1,
        0,
        -1,
        1
      };
    };
  
    private static final long[] LONGS =
        new long[] {
          53L,
          10201L,
          1097151L,
          168435455L,
          33251130335L,
          3281283447775L,
          417672546086779L,
          52057592037927932L,
          72057594037927937L
        };
  
    @Test
    public void should_compute_unsigned_vint_size() {
      for (int i = 0; i < LONGS.length; i++) {
        long val = LONGS[i];
        assertEquals(i + 1, VIntCoding.computeUnsignedVIntSize(val));
      }
    }
  
    @Test
    @UseDataProvider("roundTripTestValues")
    public void should_write_and_read_unsigned_vint_32(int value) {
      ByteBuffer bb = ByteBuffer.allocate(9);
  
      VIntCoding.writeUnsignedVInt32(value, bb);
      bb.flip();
      assertEquals(value, VIntCoding.getUnsignedVInt32(bb, 0));
    }
  
    @Test
    @UseDataProvider("roundTripTestValues")
    public void should_write_and_read_unsigned_vint(int value) {
      ByteBuffer bb = ByteBuffer.allocate(9);
  
      VIntCoding.writeUnsignedVInt(value, bb);
      bb.flip();
      assertEquals(value, VIntCoding.getUnsignedVInt(bb, 0));
    }
  }
  