core/src/test/java/org/apache/accumulo/core/util/NumUtilTest.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.accumulo.core.util;

import static org.apache.accumulo.core.util.NumUtil.bigNumberForQuantity;
import static org.apache.accumulo.core.util.NumUtil.bigNumberForSize;
import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class NumUtilTest {

  @Test
  public void testBigNumberForSize() {
    assertEquals("1,000", bigNumberForSize(1000));
    assertEquals("1.00K", bigNumberForSize(1024));
    assertEquals("1.50K", bigNumberForSize(1024 + (1024 / 2)));
    assertEquals("1,024.00K", bigNumberForSize(1024 * 1024 - 1));
    assertEquals("1.00M", bigNumberForSize(1024 * 1024));
    assertEquals("1.50M", bigNumberForSize(1024 * 1024 + (1024 * 1024 / 2)));
    assertEquals("1,024.00M", bigNumberForSize(1073741823));
    assertEquals("1.00G", bigNumberForSize(1073741824));
    assertEquals("1,024.00G", bigNumberForSize(1099511627775L));
    assertEquals("1.00T", bigNumberForSize(1099511627776L));
  }

  @Test
  public void testBigNumberForQuantity() {
    assertEquals("999", bigNumberForQuantity(999));
    assertEquals("1.00K", bigNumberForQuantity(1000));
    assertEquals("1.02K", bigNumberForQuantity(1024));
    assertEquals("5.00K", bigNumberForQuantity(5000));
    assertEquals("50.00K", bigNumberForQuantity(50000));
    assertEquals("5.00M", bigNumberForQuantity(5000000));
    assertEquals("5.00B", bigNumberForQuantity(5000000000L));
    assertEquals("5.00T", bigNumberForQuantity(5000000000000L));
  }
}