src/test/java/de/xn__ho_hia/utils/storage_unit/StorageUnitsBigBinaryTest.java

   1 /*
   2  * This file is part of storage-units. It is subject to the license terms in the LICENSE file found in the top-level
   3  * directory of this distribution and at http://creativecommons.org/publicdomain/zero/1.0/. No part of storage-units,
   4  * including this file, may be copied, modified, propagated, or distributed except according to the terms contained
   5  * in the LICENSE file.
   6  */
   7 package de.xn__ho_hia.utils.storage_unit;
   8
   9 import java.math.BigInteger;
  10
  11 import org.junit.Assert;
  12 import org.junit.experimental.theories.DataPoints;
  13 import org.junit.experimental.theories.Theories;
  14 import org.junit.experimental.theories.Theory;
  15 import org.junit.runner.RunWith;
  16
  17 import de.xn__ho_hia.quality.null_analysis.Nullsafe;
  18
  19 /**
  20 *
  21 *
  22 */
  23 @RunWith(Theories.class)
  24 public class StorageUnitsBigBinaryTest {
  25
  26     private static final BigInteger MULTIPLIER = NullsafeMath.asBigInteger(1024);
  27
  28     /**
  29      *
  30      */
  31     @DataPoints
  32     public static Object[][] INPUT_RESULTS = {
  33             { BigInteger.ONE, Kibibyte.class },
  34             { MULTIPLIER, Kibibyte.class },
  35             { MULTIPLIER.pow(2), Mebibyte.class },
  36             { MULTIPLIER.pow(3), Gibibyte.class },
  37             { MULTIPLIER.pow(4), Tebibyte.class },
  38             { MULTIPLIER.pow(5), Pebibyte.class },
  39             { MULTIPLIER.pow(6), Exbibyte.class },
  40             { MULTIPLIER.pow(7), Zebibyte.class },
  41             { MULTIPLIER.pow(8), Yobibyte.class },
  42             { MULTIPLIER.pow(9), Yobibyte.class },
  43     };
  44
  45     /**
  46      * @param input
  47      *            The number of bytes to wrap + the expected return class.
  48      */
  49     @SuppressWarnings({ "nls", "static-method", "unchecked" })
  50     @Theory
  51     public void shouldCreateCorrectBinaryUnit(final Object[] input) {
  52         // Given
  53         final BigInteger bytes = (BigInteger) input[0];
  54         final Class<? extends StorageUnit<?>> expectedClass = (Class<? extends StorageUnit<?>>) input[1];
  55
  56         // When
  57         final StorageUnit<?> unit = StorageUnits.binaryValueOf(Nullsafe.nonNull(bytes));
  58
  59         // Then
  60         Assert.assertEquals(
  61                 bytes + " should result in " + expectedClass.getSimpleName() + " but got "
  62                         + unit.getClass().getSimpleName(),
  63                 expectedClass, unit.getClass());
  64     }
  65
  66 }