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 | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 7 | import static org.junit.Assert.fail; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 8 | |
| 9 | import java.util.Arrays; |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 10 | import java.util.HashMap; |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 11 | import java.util.LinkedList; |
| 12 | import java.util.List; |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 13 | import java.util.Map; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 14 | |
| 15 | import org.junit.After; |
| 16 | import org.junit.Before; |
| 17 | import org.junit.Test; |
| 18 | |
| 19 | public class PrefixTest { |
| 20 | |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 21 | private List<PrefixTestData> testPrefixes; |
| 22 | |
| 23 | private class PrefixTestData { |
| 24 | public final String dotNotation; |
| 25 | public final String binaryNotation; |
| 26 | public final int prefixLength; |
| 27 | |
| 28 | public PrefixTestData(String dotNotation, int prefixLength, |
| 29 | String binaryNotation) { |
| 30 | this.dotNotation = dotNotation; |
| 31 | this.prefixLength = prefixLength; |
| 32 | this.binaryNotation = binaryNotation; |
| 33 | } |
| 34 | } |
| 35 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 36 | @Before |
| 37 | public void setUp() throws Exception { |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 38 | |
| 39 | testPrefixes = new LinkedList<>(); |
| 40 | |
| 41 | testPrefixes.add(new PrefixTestData("0.0.0.0", 0, "")); |
| 42 | |
| 43 | testPrefixes.add(new PrefixTestData("192.168.166.0", 22, |
| 44 | "1100000010101000101001")); |
| 45 | |
| 46 | testPrefixes.add(new PrefixTestData("192.168.166.0", 23, |
| 47 | "11000000101010001010011")); |
| 48 | |
| 49 | testPrefixes.add(new PrefixTestData("192.168.166.0", 24, |
| 50 | "110000001010100010100110")); |
| 51 | |
| 52 | testPrefixes.add(new PrefixTestData("130.162.10.1", 25, |
| 53 | "1000001010100010000010100")); |
| 54 | |
| 55 | testPrefixes.add(new PrefixTestData("255.255.255.255", 32, |
| 56 | "11111111111111111111111111111111")); |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 57 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 58 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 59 | @After |
| 60 | public void tearDown() throws Exception { |
| 61 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 62 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 63 | @Test |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 64 | public void testNewPrefixFromByteArray() { |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 65 | byte[] b1 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0x00, (byte) 0x00}; |
| 66 | byte[] b2 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0xff, (byte) 0xff}; |
| 67 | byte[] b3 = new byte[]{(byte) 0x8f, (byte) 0xac, (byte) 0x00, (byte) 0x00}; |
| 68 | byte[] b4 = new byte[]{(byte) 0x8f, (byte) 0xa0, (byte) 0x00, (byte) 0x00}; |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 69 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 70 | Prefix p1 = new Prefix(b1, 12); |
| 71 | Prefix p2 = new Prefix(b2, 12); |
| 72 | Prefix p3 = new Prefix(b3, 12); |
| 73 | Prefix p4 = new Prefix(b4, 11); |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 74 | |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 75 | // Different input byte arrays, but Prefixes should be equal after |
| 76 | // construction |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 77 | assertTrue(p1.equals(p2)); |
| 78 | assertTrue(p2.equals(p3)); |
| 79 | |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 80 | // Same input byte array, but should be false |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 81 | assertFalse(p1.equals(p4)); |
| 82 | |
| 83 | assertTrue(Arrays.equals(p1.getAddress(), p3.getAddress())); |
| 84 | assertTrue(p1.toString().equals(p2.toString())); |
| 85 | assertTrue(Arrays.equals(p1.getAddress(), p4.getAddress())); |
| 86 | assertFalse(p1.toString().equals(p4.toString())); |
| 87 | } |
| 88 | |
| 89 | @Test |
| 90 | public void testPrefixString() { |
| 91 | Prefix p1 = new Prefix("192.168.166.0", 24); |
| 92 | Prefix p2 = new Prefix("192.168.166.0", 23); |
| 93 | Prefix p3 = new Prefix("192.168.166.128", 24); |
| 94 | Prefix p4 = new Prefix("192.168.166.128", 25); |
| 95 | |
| 96 | assertFalse(p1.equals(p2)); |
| 97 | assertTrue(Arrays.equals(p1.getAddress(), p2.getAddress())); |
| 98 | |
| 99 | assertTrue(p1.equals(p3)); |
| 100 | assertTrue(Arrays.equals(p1.getAddress(), p2.getAddress())); |
| 101 | |
| 102 | assertFalse(p3.equals(p4)); |
| 103 | assertFalse(Arrays.equals(p3.getAddress(), p4.getAddress())); |
| 104 | |
| 105 | assertTrue(p1.toString().equals(p3.toString())); |
| 106 | assertEquals(p1.hashCode(), p3.hashCode()); |
| 107 | } |
| 108 | |
| 109 | @Test |
| 110 | public void testPrefixReturnsSame() { |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 111 | // Create a prefix of all ones for each prefix length. |
| 112 | // Check that Prefix doesn't mangle it |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 113 | for (int prefixLength = 1; prefixLength <= Prefix.MAX_PREFIX_LENGTH; prefixLength++) { |
| 114 | byte[] address = new byte[Prefix.ADDRESS_LENGTH_BYTES]; |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 115 | |
| 116 | int lastByte = (prefixLength - 1) / Byte.SIZE; |
| 117 | int lastBit = (prefixLength - 1) % Byte.SIZE; |
| 118 | |
| 119 | for (int j = 0; j < address.length; j++) { |
| 120 | if (j < lastByte) { |
| 121 | address[j] = (byte) 0xff; |
| 122 | } else if (j == lastByte) { |
| 123 | byte b = 0; |
| 124 | byte msb = (byte) 0x80; |
| 125 | for (int k = 0; k < Byte.SIZE; k++) { |
| 126 | if (k <= lastBit) { |
| 127 | b |= (msb >> k); |
| 128 | } |
| 129 | } |
| 130 | address[j] = b; |
| 131 | } else { |
| 132 | address[j] = 0; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | Prefix p = new Prefix(address, prefixLength); |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 137 | |
Ray Milkey | 269ffb9 | 2014-04-03 14:43:30 -0700 | [diff] [blame] | 138 | assertTrue(Arrays.equals(address, p.getAddress())); |
| 139 | } |
| 140 | } |
Jonathan Hart | f6978ce | 2014-06-23 11:20:04 -0700 | [diff] [blame] | 141 | |
| 142 | @Test |
| 143 | public void testToBinaryString() { |
| 144 | for (PrefixTestData testPrefix : testPrefixes) { |
| 145 | Prefix p = new Prefix(testPrefix.dotNotation, testPrefix.prefixLength); |
| 146 | assertEquals(testPrefix.binaryNotation, p.toBinaryString()); |
| 147 | assertEquals(p.getPrefixLength(), p.toBinaryString().length()); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | @Test(expected = IllegalArgumentException.class) |
| 152 | public void testStringConstructorPrefixLengthTooSmall() { |
| 153 | String s = "255.255.255.255"; |
| 154 | |
| 155 | // Check the first valid prefix length works |
| 156 | Prefix p = new Prefix(s, Prefix.MIN_PREFIX_LENGTH); |
| 157 | assertNotNull(p); |
| 158 | |
| 159 | // Should throw IllegalArgumentException |
| 160 | new Prefix(s, Prefix.MIN_PREFIX_LENGTH - 1); |
| 161 | } |
| 162 | |
| 163 | @Test(expected = IllegalArgumentException.class) |
| 164 | public void testStringConstructorPrefixLengthTooLarge() { |
| 165 | String s = "255.255.255.255"; |
| 166 | |
| 167 | // Check the last valid prefix length works |
| 168 | Prefix p = new Prefix(s, Prefix.MAX_PREFIX_LENGTH); |
| 169 | assertNotNull(p); |
| 170 | |
| 171 | // Should throw IllegalArgumentException |
| 172 | new Prefix(s, Prefix.MAX_PREFIX_LENGTH + 1); |
| 173 | } |
| 174 | |
| 175 | @Test(expected = IllegalArgumentException.class) |
| 176 | public void testByteConstructorPrefixLengthTooSmall() { |
| 177 | byte[] b = new byte[]{(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; |
| 178 | |
| 179 | // Check the first valid prefix length works |
| 180 | Prefix p = new Prefix(b, Prefix.MIN_PREFIX_LENGTH); |
| 181 | assertNotNull(p); |
| 182 | |
| 183 | // Should throw IllegalArgumentException |
| 184 | new Prefix(b, Prefix.MIN_PREFIX_LENGTH - 1); |
| 185 | } |
| 186 | |
| 187 | @Test(expected = IllegalArgumentException.class) |
| 188 | public void testByteConstructorPrefixLengthTooLarge() { |
| 189 | byte[] b = new byte[]{(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff}; |
| 190 | |
| 191 | // Check the last valid prefix length works |
| 192 | Prefix p = new Prefix(b, Prefix.MAX_PREFIX_LENGTH); |
| 193 | assertNotNull(p); |
| 194 | |
| 195 | // Should throw IllegalArgumentException |
| 196 | new Prefix(b, Prefix.MAX_PREFIX_LENGTH + 1); |
| 197 | } |
Jonathan Hart | 850dddc | 2014-08-28 09:54:10 -0700 | [diff] [blame^] | 198 | |
| 199 | @Test |
| 200 | public void testFromBinaryString() { |
| 201 | Map<String, String> binaryToDecimalDot = new HashMap<>(); |
| 202 | |
| 203 | binaryToDecimalDot.put("", "0.0.0.0/0"); |
| 204 | binaryToDecimalDot.put("1", "128.0.0.0/1"); |
| 205 | binaryToDecimalDot.put("10000001", "129.0.0.0/8"); |
| 206 | binaryToDecimalDot.put("1011011110", "183.128.0.0/10"); |
| 207 | binaryToDecimalDot.put("01001101000000001010010110110101", "77.0.165.181/32"); |
| 208 | |
| 209 | for (Map.Entry<String, String> entry : binaryToDecimalDot.entrySet()) { |
| 210 | Prefix p = Prefix.fromBinaryString(entry.getKey()); |
| 211 | assertEquals(entry.getValue(), p.toString()); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | @Test |
| 216 | public void testFromBinaryStringInvalidInput() { |
| 217 | try { |
| 218 | Prefix.fromBinaryString("34102"); |
| 219 | fail("Non-binary input should throw an exception"); |
| 220 | } catch (IllegalArgumentException e) { |
| 221 | assertTrue(true); |
| 222 | } |
| 223 | |
| 224 | try { |
| 225 | Prefix.fromBinaryString("-0101"); |
| 226 | fail("Non-binary input should throw an exception"); |
| 227 | } catch (IllegalArgumentException e) { |
| 228 | assertTrue(true); |
| 229 | } |
| 230 | |
| 231 | try { |
| 232 | Prefix.fromBinaryString("01010101010101010101010101010102"); |
| 233 | fail("Non-binary input should throw an exception"); |
| 234 | } catch (IllegalArgumentException e) { |
| 235 | assertTrue(true); |
| 236 | } |
| 237 | |
| 238 | try { |
| 239 | Prefix.fromBinaryString("010101010101010101010101010101011"); |
| 240 | fail("Input too long should throw an exception"); |
| 241 | } catch (IllegalArgumentException e) { |
| 242 | assertTrue(true); |
| 243 | } |
| 244 | } |
Jonathan Hart | 8f5f468 | 2013-08-07 22:13:39 +1200 | [diff] [blame] | 245 | } |