yang/yang-common/src/test/java/org/opendaylight/yangtools/yang/common/Uint16Test.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.yang.common;
   9
  10 import static org.hamcrest.MatcherAssert.assertThat;
  11 import static org.hamcrest.Matchers.greaterThan;
  12 import static org.hamcrest.Matchers.lessThan;
  13 import static org.junit.Assert.assertEquals;
  14 import static org.junit.Assert.assertFalse;
  15 import static org.junit.Assert.assertSame;
  16 import static org.junit.Assert.assertThrows;
  17 import static org.junit.Assert.assertTrue;
  18
  19 import java.io.ByteArrayInputStream;
  20 import java.io.ByteArrayOutputStream;
  21 import java.io.IOException;
  22 import java.io.ObjectInputStream;
  23 import java.io.ObjectOutputStream;
  24 import org.junit.Test;
  25
  26 public class Uint16Test {
  27     @Test
  28     public void testValueOf() {
  29         assertEquals(127, Uint16.valueOf(Byte.MAX_VALUE).byteValue());
  30         assertEquals(32767, Uint16.valueOf(Short.MAX_VALUE).shortValue());
  31         assertEquals(65535, Uint16.valueOf(65535).intValue());
  32         assertEquals(65535L, Uint16.valueOf(65535L).longValue());
  33         assertEquals(0, Uint16.valueOf("0").intValue());
  34     }
  35
  36     @Test
  37     public void testCompareTo() {
  38         final Uint16 five = Uint16.valueOf(5);
  39         final Uint16 zero = Uint16.valueOf(0);
  40         final Uint16 max = Uint16.valueOf(65535);
  41
  42         assertEquals(0, zero.compareTo(zero));
  43         assertThat(zero.compareTo(five), lessThan(0));
  44         assertThat(zero.compareTo(max), lessThan(0));
  45
  46         assertThat(five.compareTo(zero), greaterThan(0));
  47         assertEquals(0, five.compareTo(five));
  48         assertThat(five.compareTo(max), lessThan(0));
  49
  50         assertThat(max.compareTo(zero), greaterThan(0));
  51         assertThat(max.compareTo(five), greaterThan(0));
  52         assertEquals(0, max.compareTo(max));
  53     }
  54
  55     @Test
  56     public void testEquals() {
  57         final Uint16 five = Uint16.valueOf(5);
  58         final Uint16 zero = Uint16.valueOf(0);
  59         final Uint16 max = Uint16.valueOf(65535);
  60
  61         final Uint16 test = new Uint16(five);
  62         assertFalse(test.equals(zero));
  63         assertFalse(test.equals(new Object()));
  64         assertFalse(test.equals(max));
  65         assertTrue(test.equals(test));
  66         assertTrue(test.equals(five));
  67         assertTrue(five.equals(test));
  68     }
  69
  70     @Test
  71     public void testToString() {
  72         assertEquals("0", Uint16.valueOf(0).toString());
  73         assertEquals("32767", Uint16.valueOf(32767).toString());
  74         assertEquals("32768", Uint16.valueOf(32768).toString());
  75         assertEquals("65535", Uint16.valueOf(65535).toString());
  76     }
  77
  78     @Test
  79     public void testHashCode() {
  80         assertEquals(Short.hashCode((short)-63), Uint16.fromShortBits((short)-63).hashCode());
  81     }
  82
  83     @Test
  84     public void testFloatValue() {
  85         assertEquals(0, Uint16.valueOf(0).floatValue(), 0);
  86     }
  87
  88     @Test
  89     public void testDoubleValue() {
  90         assertEquals(0, Uint16.valueOf(0).doubleValue(), 0);
  91     }
  92
  93     @Test
  94     public void testConversions() {
  95         assertSame(Uint16.valueOf(5), Uint16.valueOf(Uint8.valueOf(5)));
  96         assertSame(Uint16.valueOf(10), Uint16.valueOf(Uint32.valueOf(10)));
  97         assertSame(Uint16.valueOf(20), Uint16.valueOf(Uint64.valueOf(20)));
  98
  99         assertEquals(Uint8.TEN, Uint16.TEN.toUint8());
 100         assertEquals(Uint32.valueOf(65535), Uint16.MAX_VALUE.toUint32());
 101         assertEquals(Uint64.valueOf(65535), Uint16.MAX_VALUE.toUint64());
 102     }
 103
 104     @Test
 105     public void testToUint8() {
 106         assertThrows(IllegalArgumentException.class, () -> Uint16.MAX_VALUE.toUint8());
 107     }
 108
 109     @Test
 110     public void testSerialization() throws IOException, ClassNotFoundException {
 111         final Uint16 source = Uint16.valueOf(255);
 112         final ByteArrayOutputStream bos = new ByteArrayOutputStream();
 113         try (ObjectOutputStream oos = new ObjectOutputStream(bos)) {
 114             oos.writeObject(source);
 115         }
 116
 117         final Object read;
 118         try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(bos.toByteArray()))) {
 119             read = ois.readObject();
 120         }
 121
 122         assertSame(source, read);
 123     }
 124
 125     @Test
 126     public void testNegativeValues() {
 127         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf((byte)-1));
 128         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf((short)-1));
 129         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf(-1));
 130         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf(-1L));
 131     }
 132
 133     @Test
 134     public void testLargeValues() {
 135         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf(65536));
 136         assertThrows(IllegalArgumentException.class, () -> Uint16.valueOf(65536L));
 137     }
 138
 139     @Test
 140     public void testNullValueOfString() {
 141         assertThrows(NullPointerException.class, () -> Uint16.valueOf((String) null));
 142     }
 143 }