Jonathan Hart | 8f6dc09 | 2014-04-18 15:56:43 -0700 | [diff] [blame] | 1 | package net.onrc.onos.apps.sdnip; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 2 | |
Jonathan Hart | a88fd24 | 2014-04-03 11:24:54 -0700 | [diff] [blame] | 3 | import static org.junit.Assert.assertEquals; |
| 4 | import static org.junit.Assert.assertFalse; |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 5 | import static org.junit.Assert.assertNotNull; |
Jonathan Hart | a88fd24 | 2014-04-03 11:24:54 -0700 | [diff] [blame] | 6 | import static org.junit.Assert.assertTrue; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 7 | |
| 8 | import java.util.Arrays; |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 9 | import java.util.LinkedList; |
| 10 | import java.util.List; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 11 | |
| 12 | import org.junit.After; |
| 13 | import org.junit.Before; |
| 14 | import org.junit.Test; |
| 15 | |
| 16 | public class PrefixTest { |
| 17 | |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 18 | private List<PrefixTestData> testPrefixes; |
| 19 | |
| 20 | private class PrefixTestData { |
| 21 | public final String dotNotation; |
| 22 | public final String binaryNotation; |
| 23 | public final int prefixLength; |
| 24 | |
| 25 | public PrefixTestData(String dotNotation, int prefixLength, |
| 26 | String binaryNotation) { |
| 27 | this.dotNotation = dotNotation; |
| 28 | this.prefixLength = prefixLength; |
| 29 | this.binaryNotation = binaryNotation; |
| 30 | } |
| 31 | } |
| 32 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 33 | @Before |
| 34 | public void setUp() throws Exception { |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 35 | |
| 36 | testPrefixes = new LinkedList<>(); |
| 37 | |
| 38 | testPrefixes.add(new PrefixTestData("0.0.0.0", 0, "")); |
| 39 | |
| 40 | testPrefixes.add(new PrefixTestData("192.168.166.0", 22, |
| 41 | "1100000010101000101001")); |
| 42 | |
| 43 | testPrefixes.add(new PrefixTestData("192.168.166.0", 23, |
| 44 | "11000000101010001010011")); |
| 45 | |
| 46 | testPrefixes.add(new PrefixTestData("192.168.166.0", 24, |
| 47 | "110000001010100010100110")); |
| 48 | |
| 49 | testPrefixes.add(new PrefixTestData("130.162.10.1", 25, |
| 50 | "1000001010100010000010100")); |
| 51 | |
| 52 | testPrefixes.add(new PrefixTestData("255.255.255.255", 32, |
| 53 | "11111111111111111111111111111111")); |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 54 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 55 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 56 | @After |
| 57 | public void tearDown() throws Exception { |
| 58 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 59 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 60 | @Test |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 61 | public void testNewPrefixFromByteArray() { |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 62 | byte[] b1 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0x00, (byte) 0x00}; |
| 63 | byte[] b2 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0xff, (byte) 0xff}; |
| 64 | byte[] b3 = new byte[]{(byte) 0x8f, (byte) 0xac, (byte) 0x00, (byte) 0x00}; |
| 65 | byte[] b4 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0x00, (byte) 0x00}; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 66 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 67 | Prefix p1 = new Prefix(b1, 12); |
| 68 | Prefix p2 = new Prefix(b2, 12); |
| 69 | Prefix p3 = new Prefix(b3, 12); |
| 70 | Prefix p4 = new Prefix(b4, 11); |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 71 | |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 72 | //Have different input byte arrays, but should be equal after construction |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 73 | assertTrue(p1.equals(p2)); |
| 74 | assertTrue(p2.equals(p3)); |
| 75 | |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 76 | //Same input byte array, but should be false |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 77 | assertFalse(p1.equals(p4)); |
| 78 | |
| 79 | assertTrue(Arrays.equals(p1.getAddress(), p3.getAddress())); |
| 80 | assertTrue(p1.toString().equals(p2.toString())); |
| 81 | assertTrue(Arrays.equals(p1.getAddress(), p4.getAddress())); |
| 82 | assertFalse(p1.toString().equals(p4.toString())); |
| 83 | } |
| 84 | |
| 85 | @Test |
| 86 | public void testPrefixString() { |
| 87 | Prefix p1 = new Prefix("192.168.166.0", 24); |
| 88 | Prefix p2 = new Prefix("192.168.166.0", 23); |
| 89 | Prefix p3 = new Prefix("192.168.166.128", 24); |
| 90 | Prefix p4 = new Prefix("192.168.166.128", 25); |
| 91 | |
| 92 | assertFalse(p1.equals(p2)); |
| 93 | assertTrue(Arrays.equals(p1.getAddress(), p2.getAddress())); |
| 94 | |
| 95 | assertTrue(p1.equals(p3)); |
| 96 | assertTrue(Arrays.equals(p1.getAddress(), p2.getAddress())); |
| 97 | |
| 98 | assertFalse(p3.equals(p4)); |
| 99 | assertFalse(Arrays.equals(p3.getAddress(), p4.getAddress())); |
| 100 | |
| 101 | assertTrue(p1.toString().equals(p3.toString())); |
| 102 | assertEquals(p1.hashCode(), p3.hashCode()); |
| 103 | } |
| 104 | |
| 105 | @Test |
| 106 | public void testPrefixReturnsSame() { |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 107 | //Create a prefix of all ones for each prefix length. |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 108 | //Check that Prefix doesn't mangle it |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 109 | for (int prefixLength = 1; prefixLength <= Prefix.MAX_PREFIX_LENGTH; prefixLength++) { |
| 110 | byte[] address = new byte[Prefix.ADDRESS_LENGTH_BYTES]; |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 111 | |
| 112 | int lastByte = (prefixLength - 1) / Byte.SIZE; |
| 113 | int lastBit = (prefixLength - 1) % Byte.SIZE; |
| 114 | |
| 115 | for (int j = 0; j < address.length; j++) { |
| 116 | if (j < lastByte) { |
| 117 | address[j] = (byte) 0xff; |
| 118 | } else if (j == lastByte) { |
| 119 | byte b = 0; |
| 120 | byte msb = (byte) 0x80; |
| 121 | for (int k = 0; k < Byte.SIZE; k++) { |
| 122 | if (k <= lastBit) { |
| 123 | b |= (msb >> k); |
| 124 | } |
| 125 | } |
| 126 | address[j] = b; |
| 127 | } else { |
| 128 | address[j] = 0; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | Prefix p = new Prefix(address, prefixLength); |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 133 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 134 | assertTrue(Arrays.equals(address, p.getAddress())); |
| 135 | } |
| 136 | } |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame^] | 137 | |
| 138 | @Test |
| 139 | public void testToBinaryString() { |
| 140 | for (PrefixTestData testPrefix : testPrefixes) { |
| 141 | Prefix p = new Prefix(testPrefix.dotNotation, testPrefix.prefixLength); |
| 142 | assertEquals(testPrefix.binaryNotation, p.toBinaryString()); |
| 143 | assertEquals(p.getPrefixLength(), p.toBinaryString().length()); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | @Test(expected = IllegalArgumentException.class) |
| 148 | public void testStringConstructorPrefixLengthTooSmall() { |
| 149 | String s = "255.255.255.255"; |
| 150 | |
| 151 | // Check the first valid prefix length works |
| 152 | Prefix p = new Prefix(s, Prefix.MIN_PREFIX_LENGTH); |
| 153 | assertNotNull(p); |
| 154 | |
| 155 | // Should throw IllegalArgumentException |
| 156 | new Prefix(s, Prefix.MIN_PREFIX_LENGTH - 1); |
| 157 | } |
| 158 | |
| 159 | @Test(expected = IllegalArgumentException.class) |
| 160 | public void testStringConstructorPrefixLengthTooLarge() { |
| 161 | String s = "255.255.255.255"; |
| 162 | |
| 163 | // Check the last valid prefix length works |
| 164 | Prefix p = new Prefix(s, Prefix.MAX_PREFIX_LENGTH); |
| 165 | assertNotNull(p); |
| 166 | |
| 167 | // Should throw IllegalArgumentException |
| 168 | new Prefix(s, Prefix.MAX_PREFIX_LENGTH + 1); |
| 169 | } |
| 170 | |
| 171 | @Test(expected = IllegalArgumentException.class) |
| 172 | public void testByteConstructorPrefixLengthTooSmall() { |
| 173 | byte[] b = new byte[]{(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; |
| 174 | |
| 175 | // Check the first valid prefix length works |
| 176 | Prefix p = new Prefix(b, Prefix.MIN_PREFIX_LENGTH); |
| 177 | assertNotNull(p); |
| 178 | |
| 179 | // Should throw IllegalArgumentException |
| 180 | new Prefix(b, Prefix.MIN_PREFIX_LENGTH - 1); |
| 181 | } |
| 182 | |
| 183 | @Test(expected = IllegalArgumentException.class) |
| 184 | public void testByteConstructorPrefixLengthTooLarge() { |
| 185 | byte[] b = new byte[]{(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; |
| 186 | |
| 187 | // Check the last valid prefix length works |
| 188 | Prefix p = new Prefix(b, Prefix.MAX_PREFIX_LENGTH); |
| 189 | assertNotNull(p); |
| 190 | |
| 191 | // Should throw IllegalArgumentException |
| 192 | new Prefix(b, Prefix.MAX_PREFIX_LENGTH + 1); |
| 193 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 194 | } |