Matthias Andreas Benkard | b5d657a | 2022-02-03 21:14:30 +0100 | [diff] [blame^] | 1 | // SPDX-FileCopyrightText: © 2021 Matthias Andreas Benkard <code@mail.matthias.benkard.de> |
| 2 | // |
| 3 | // SPDX-License-Identifier: LGPL-3.0-or-later |
| 4 | |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 5 | package eu.mulk.jgvariant.core; |
| 6 | |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 7 | import static java.nio.ByteOrder.BIG_ENDIAN; |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 8 | import static java.nio.ByteOrder.LITTLE_ENDIAN; |
| 9 | import static java.nio.charset.StandardCharsets.UTF_8; |
Matthias Andreas Benkard | 55c3481 | 2021-12-14 21:51:10 +0100 | [diff] [blame] | 10 | import static org.junit.jupiter.api.Assertions.assertAll; |
| 11 | import static org.junit.jupiter.api.Assertions.assertArrayEquals; |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 12 | import static org.junit.jupiter.api.Assertions.assertEquals; |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 13 | import static org.junit.jupiter.api.Assertions.assertThrows; |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 14 | |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 15 | import java.nio.ByteBuffer; |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 16 | import java.text.ParseException; |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 17 | import java.util.List; |
Matthias Andreas Benkard | cd924f6 | 2021-12-28 00:46:06 +0100 | [diff] [blame] | 18 | import java.util.Map; |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 19 | import java.util.Optional; |
| 20 | import org.junit.jupiter.api.Test; |
| 21 | |
| 22 | /** |
| 23 | * Tests based on the examples given in <a |
| 24 | * href="https://people.gnome.org/~desrt/gvariant-serialisation.pdf">~desrt/gvariant-serialisation.pdf</a>. |
| 25 | */ |
| 26 | class DecoderTest { |
| 27 | |
| 28 | @Test |
| 29 | void testString() { |
| 30 | var data = new byte[] {0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x00}; |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 31 | var decoder = Decoder.ofString(UTF_8); |
| 32 | assertEquals("hello world", decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 33 | } |
| 34 | |
| 35 | @Test |
| 36 | void testMaybe() { |
| 37 | var data = |
| 38 | new byte[] {0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F, 0x72, 0x6C, 0x64, 0x00, 0x00}; |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 39 | var decoder = Decoder.ofMaybe(Decoder.ofString(UTF_8)); |
| 40 | assertEquals(Optional.of("hello world"), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | @Test |
| 44 | void testBooleanArray() { |
| 45 | var data = new byte[] {0x01, 0x00, 0x00, 0x01, 0x01}; |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 46 | var decoder = Decoder.ofArray(Decoder.ofBoolean()); |
| 47 | assertEquals(List.of(true, false, false, true, true), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | @Test |
| 51 | void testStructure() { |
| 52 | var data = |
| 53 | new byte[] { |
| 54 | 0x66, 0x6F, 0x6F, 0x00, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, 0x04 |
| 55 | }; |
| 56 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 57 | record TestRecord(String s, int i) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 58 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 59 | var decoder = Decoder.ofStructure(TestRecord.class, Decoder.ofString(UTF_8), Decoder.ofInt()); |
| 60 | assertEquals(new TestRecord("foo", -1), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | @Test |
| 64 | void testComplexStructureArray() { |
| 65 | var data = |
| 66 | new byte[] { |
| 67 | 0x68, |
| 68 | 0x69, |
| 69 | 0x00, |
| 70 | 0x00, |
| 71 | (byte) 0xfe, |
| 72 | (byte) 0xff, |
| 73 | (byte) 0xff, |
| 74 | (byte) 0xff, |
| 75 | 0x03, |
| 76 | 0x00, |
| 77 | 0x00, |
| 78 | 0x00, |
| 79 | 0x62, |
| 80 | 0x79, |
| 81 | 0x65, |
| 82 | 0x00, |
| 83 | (byte) 0xff, |
| 84 | (byte) 0xff, |
| 85 | (byte) 0xff, |
| 86 | (byte) 0xff, |
| 87 | 0x04, |
| 88 | 0x09, |
| 89 | 0x15 |
| 90 | }; |
| 91 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 92 | record TestRecord(String s, int i) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 93 | |
| 94 | var decoder = |
| 95 | Decoder.ofArray( |
| 96 | Decoder.ofStructure( |
| 97 | TestRecord.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 98 | Decoder.ofString(UTF_8), |
| 99 | Decoder.ofInt().withByteOrder(LITTLE_ENDIAN))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 100 | assertEquals( |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 101 | List.of(new TestRecord("hi", -2), new TestRecord("bye", -1)), |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 102 | decoder.decode(ByteBuffer.wrap(data))); |
| 103 | } |
| 104 | |
| 105 | @Test |
Matthias Andreas Benkard | 9a6c8ed | 2021-12-28 01:00:22 +0100 | [diff] [blame] | 106 | void testDictionary() { |
| 107 | var data = |
| 108 | new byte[] { |
| 109 | 0x68, |
| 110 | 0x69, |
| 111 | 0x00, |
| 112 | 0x00, |
| 113 | (byte) 0xfe, |
| 114 | (byte) 0xff, |
| 115 | (byte) 0xff, |
| 116 | (byte) 0xff, |
| 117 | 0x03, |
| 118 | 0x00, |
| 119 | 0x00, |
| 120 | 0x00, |
| 121 | 0x62, |
| 122 | 0x79, |
| 123 | 0x65, |
| 124 | 0x00, |
| 125 | (byte) 0xff, |
| 126 | (byte) 0xff, |
| 127 | (byte) 0xff, |
| 128 | (byte) 0xff, |
| 129 | 0x04, |
| 130 | 0x09, |
| 131 | 0x15 |
| 132 | }; |
| 133 | |
| 134 | var decoder = |
| 135 | Decoder.ofDictionary(Decoder.ofString(UTF_8), Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); |
| 136 | assertEquals(Map.of("hi", -2, "bye", -1), decoder.decode(ByteBuffer.wrap(data))); |
| 137 | } |
| 138 | |
| 139 | @Test |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 140 | void testStringArray() { |
| 141 | var data = |
| 142 | new byte[] { |
| 143 | 0x69, 0x00, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, |
| 144 | 0x67, 0x73, 0x3F, 0x00, 0x02, 0x06, 0x0a, 0x13 |
| 145 | }; |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 146 | var decoder = Decoder.ofArray(Decoder.ofString(UTF_8)); |
| 147 | assertEquals(List.of("i", "can", "has", "strings?"), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | @Test |
| 151 | void testNestedStructure() { |
| 152 | var data = |
| 153 | new byte[] { |
| 154 | 0x69, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, |
| 155 | 0x73, 0x3F, 0x00, 0x04, 0x0d, 0x05 |
| 156 | }; |
| 157 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 158 | record TestChild(byte b, String s) {} |
| 159 | record TestParent(TestChild tc, List<String> as) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 160 | |
| 161 | var decoder = |
| 162 | Decoder.ofStructure( |
| 163 | TestParent.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 164 | Decoder.ofStructure(TestChild.class, Decoder.ofByte(), Decoder.ofString(UTF_8)), |
| 165 | Decoder.ofArray(Decoder.ofString(UTF_8))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 166 | |
| 167 | assertEquals( |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 168 | new TestParent(new TestChild((byte) 0x69, "can"), List.of("has", "strings?")), |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 169 | decoder.decode(ByteBuffer.wrap(data))); |
| 170 | } |
| 171 | |
| 172 | @Test |
Matthias Andreas Benkard | 55c3481 | 2021-12-14 21:51:10 +0100 | [diff] [blame] | 173 | void testNestedStructureVariant() { |
| 174 | var data = |
| 175 | new byte[] { |
| 176 | 0x69, 0x63, 0x61, 0x6E, 0x00, 0x68, 0x61, 0x73, 0x00, 0x73, 0x74, 0x72, 0x69, 0x6E, 0x67, |
| 177 | 0x73, 0x3F, 0x00, 0x04, 0x0d, 0x05, 0x00, 0x28, 0x28, 0x79, 0x73, 0x29, 0x61, 0x73, 0x29 |
| 178 | }; |
| 179 | |
| 180 | var decoder = Decoder.ofVariant(); |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 181 | var variant = decoder.decode(ByteBuffer.wrap(data)); |
| 182 | var result = (Object[]) variant.value(); |
Matthias Andreas Benkard | 55c3481 | 2021-12-14 21:51:10 +0100 | [diff] [blame] | 183 | |
| 184 | assertAll( |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 185 | () -> assertEquals(Signature.parse("((ys)as)"), variant.signature()), |
Matthias Andreas Benkard | 55c3481 | 2021-12-14 21:51:10 +0100 | [diff] [blame] | 186 | () -> assertEquals(2, result.length), |
| 187 | () -> assertArrayEquals(new Object[] {(byte) 0x69, "can"}, (Object[]) result[0]), |
| 188 | () -> assertEquals(List.of("has", "strings?"), result[1])); |
| 189 | } |
| 190 | |
| 191 | @Test |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 192 | void testSimpleStructure() { |
| 193 | var data = new byte[] {0x60, 0x70}; |
| 194 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 195 | record TestRecord(byte b1, byte b2) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 196 | |
| 197 | var decoder = |
| 198 | Decoder.ofStructure( |
| 199 | TestRecord.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 200 | Decoder.ofByte().withByteOrder(LITTLE_ENDIAN), |
| 201 | Decoder.ofByte().withByteOrder(LITTLE_ENDIAN)); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 202 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 203 | assertEquals(new TestRecord((byte) 0x60, (byte) 0x70), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 204 | } |
| 205 | |
| 206 | @Test |
| 207 | void testPaddedStructureRight() { |
| 208 | var data = new byte[] {0x60, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00}; |
| 209 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 210 | record TestRecord(int b1, byte b2) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 211 | |
| 212 | var decoder = |
| 213 | Decoder.ofStructure( |
| 214 | TestRecord.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 215 | Decoder.ofInt().withByteOrder(LITTLE_ENDIAN), |
| 216 | Decoder.ofByte().withByteOrder(LITTLE_ENDIAN)); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 217 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 218 | assertEquals(new TestRecord(0x60, (byte) 0x70), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | @Test |
| 222 | void testPaddedStructureLeft() { |
| 223 | var data = new byte[] {0x60, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00}; |
| 224 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 225 | record TestRecord(byte b1, int b2) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 226 | |
| 227 | var decoder = |
| 228 | Decoder.ofStructure( |
| 229 | TestRecord.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 230 | Decoder.ofByte().withByteOrder(LITTLE_ENDIAN), |
| 231 | Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 232 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 233 | assertEquals(new TestRecord((byte) 0x60, 0x70), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | @Test |
| 237 | void testSimpleStructureArray() { |
| 238 | var data = |
| 239 | new byte[] { |
| 240 | 0x60, |
| 241 | 0x00, |
| 242 | 0x00, |
| 243 | 0x00, |
| 244 | 0x70, |
| 245 | 0x00, |
| 246 | 0x00, |
| 247 | 0x00, |
| 248 | (byte) 0x88, |
| 249 | 0x02, |
| 250 | 0x00, |
| 251 | 0x00, |
| 252 | (byte) 0xF7, |
| 253 | 0x00, |
| 254 | 0x00, |
| 255 | 0x00 |
| 256 | }; |
| 257 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 258 | record TestRecord(int b1, byte b2) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 259 | |
| 260 | var decoder = |
| 261 | Decoder.ofArray( |
| 262 | Decoder.ofStructure( |
| 263 | TestRecord.class, |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 264 | Decoder.ofInt().withByteOrder(LITTLE_ENDIAN), |
| 265 | Decoder.ofByte().withByteOrder(LITTLE_ENDIAN))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 266 | |
| 267 | assertEquals( |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 268 | List.of(new TestRecord(96, (byte) 0x70), new TestRecord(648, (byte) 0xf7)), |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 269 | decoder.decode(ByteBuffer.wrap(data))); |
| 270 | } |
| 271 | |
| 272 | @Test |
| 273 | void testByteArray() { |
| 274 | var data = new byte[] {0x04, 0x05, 0x06, 0x07}; |
| 275 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 276 | var decoder = Decoder.ofArray(Decoder.ofByte()); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 277 | |
| 278 | assertEquals( |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 279 | List.of((byte) 0x04, (byte) 0x05, (byte) 0x06, (byte) 0x07), |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 280 | decoder.decode(ByteBuffer.wrap(data))); |
| 281 | } |
| 282 | |
| 283 | @Test |
Matthias Andreas Benkard | 4e8423d | 2021-12-19 22:56:09 +0100 | [diff] [blame] | 284 | void testPrimitiveByteArray() { |
| 285 | var data = new byte[] {0x04, 0x05, 0x06, 0x07}; |
| 286 | |
| 287 | var decoder = Decoder.ofByteArray(); |
| 288 | |
| 289 | assertArrayEquals(data, decoder.decode(ByteBuffer.wrap(data))); |
| 290 | } |
| 291 | |
| 292 | @Test |
| 293 | void testPrimitiveByteArrayRecord() { |
| 294 | var data = new byte[] {0x04, 0x05, 0x06, 0x07}; |
| 295 | |
| 296 | record TestRecord(byte[] bytes) {} |
| 297 | |
| 298 | var decoder = Decoder.ofStructure(TestRecord.class, Decoder.ofByteArray()); |
| 299 | |
| 300 | assertArrayEquals(data, decoder.decode(ByteBuffer.wrap(data)).bytes()); |
| 301 | } |
| 302 | |
| 303 | @Test |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 304 | void testIntegerArray() { |
| 305 | var data = new byte[] {0x04, 0x00, 0x00, 0x00, 0x02, 0x01, 0x00, 0x00}; |
| 306 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 307 | var decoder = Decoder.ofArray(Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 308 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 309 | assertEquals(List.of(4, 258), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | @Test |
Matthias Andreas Benkard | cd924f6 | 2021-12-28 00:46:06 +0100 | [diff] [blame] | 313 | void testDictionaryEntryAsMapEntry() { |
| 314 | var data = |
| 315 | new byte[] {0x61, 0x20, 0x6B, 0x65, 0x79, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00, 0x00, 0x06}; |
| 316 | |
| 317 | var decoder = |
| 318 | Decoder.ofDictionaryEntry( |
| 319 | Decoder.ofString(UTF_8), Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); |
| 320 | assertEquals(Map.entry("a key", 514), decoder.decode(ByteBuffer.wrap(data))); |
| 321 | } |
| 322 | |
| 323 | @Test |
| 324 | void testDictionaryEntryAsRecord() { |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 325 | var data = |
| 326 | new byte[] {0x61, 0x20, 0x6B, 0x65, 0x79, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00, 0x00, 0x06}; |
| 327 | |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 328 | record TestEntry(String key, int value) {} |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 329 | |
| 330 | var decoder = |
| 331 | Decoder.ofStructure( |
Matthias Andreas Benkard | 35f7a20 | 2021-12-14 19:29:26 +0100 | [diff] [blame] | 332 | TestEntry.class, Decoder.ofString(UTF_8), Decoder.ofInt().withByteOrder(LITTLE_ENDIAN)); |
| 333 | assertEquals(new TestEntry("a key", 514), decoder.decode(ByteBuffer.wrap(data))); |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 334 | } |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 335 | |
| 336 | @Test |
| 337 | void testPaddedPrimitives() { |
| 338 | var data = |
| 339 | new byte[] { |
| 340 | 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 341 | 0x00, 0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 342 | }; |
| 343 | |
| 344 | record TestRecord(short s, long l, double d) {} |
| 345 | |
| 346 | var decoder = |
| 347 | Decoder.ofStructure( |
| 348 | TestRecord.class, |
| 349 | Decoder.ofShort().withByteOrder(BIG_ENDIAN), |
| 350 | Decoder.ofLong().withByteOrder(LITTLE_ENDIAN), |
| 351 | Decoder.ofDouble()); |
| 352 | assertEquals(new TestRecord((short) 1, 2, 3.25), decoder.decode(ByteBuffer.wrap(data))); |
| 353 | } |
| 354 | |
| 355 | @Test |
| 356 | void testEmbeddedMaybe() { |
| 357 | var data = new byte[] {0x01, 0x01}; |
| 358 | |
| 359 | record TestRecord(Optional<Byte> set, Optional<Byte> unset) {} |
| 360 | |
| 361 | var decoder = |
| 362 | Decoder.ofStructure( |
| 363 | TestRecord.class, Decoder.ofMaybe(Decoder.ofByte()), Decoder.ofMaybe(Decoder.ofByte())); |
| 364 | assertEquals( |
| 365 | new TestRecord(Optional.of((byte) 1), Optional.empty()), |
| 366 | decoder.decode(ByteBuffer.wrap(data))); |
| 367 | } |
| 368 | |
| 369 | @Test |
| 370 | void testRecordComponentMismatch() { |
| 371 | record TestRecord(Optional<Byte> set) {} |
| 372 | |
| 373 | var maybeDecoder = Decoder.ofMaybe(Decoder.ofByte()); |
| 374 | assertThrows( |
| 375 | IllegalArgumentException.class, |
| 376 | () -> Decoder.ofStructure(TestRecord.class, maybeDecoder, maybeDecoder)); |
| 377 | } |
| 378 | |
| 379 | @Test |
| 380 | void testTrivialRecord() { |
| 381 | var data = new byte[] {0x00}; |
| 382 | |
| 383 | record TestRecord() {} |
| 384 | |
| 385 | var decoder = Decoder.ofStructure(TestRecord.class); |
| 386 | assertEquals(new TestRecord(), decoder.decode(ByteBuffer.wrap(data))); |
| 387 | } |
| 388 | |
| 389 | @Test |
| 390 | void testTwoElementTrivialRecordArray() { |
| 391 | var data = new byte[] {0x00, 0x00}; |
| 392 | |
| 393 | record TestRecord() {} |
| 394 | |
| 395 | var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); |
| 396 | assertEquals( |
| 397 | List.of(new TestRecord(), new TestRecord()), decoder.decode(ByteBuffer.wrap(data))); |
| 398 | } |
| 399 | |
| 400 | @Test |
| 401 | void testSingletonTrivialRecordArray() { |
| 402 | var data = new byte[] {0x00}; |
| 403 | |
| 404 | record TestRecord() {} |
| 405 | |
| 406 | var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); |
| 407 | assertEquals(List.of(new TestRecord()), decoder.decode(ByteBuffer.wrap(data))); |
| 408 | } |
| 409 | |
| 410 | @Test |
| 411 | void testEmptyTrivialRecordArray() { |
| 412 | var data = new byte[] {}; |
| 413 | |
| 414 | record TestRecord() {} |
| 415 | |
| 416 | var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); |
| 417 | assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data))); |
| 418 | } |
| 419 | |
| 420 | @Test |
| 421 | void testVariantArray() { |
| 422 | var data = new byte[] {}; |
| 423 | |
| 424 | record TestRecord() {} |
| 425 | |
| 426 | var decoder = Decoder.ofArray(Decoder.ofStructure(TestRecord.class)); |
| 427 | assertEquals(List.of(), decoder.decode(ByteBuffer.wrap(data))); |
| 428 | } |
| 429 | |
| 430 | @Test |
| 431 | void testInvalidVariantSignature() { |
| 432 | var data = new byte[] {0x00, 0x00, 0x2E}; |
| 433 | |
| 434 | var decoder = Decoder.ofVariant(); |
| 435 | assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data))); |
| 436 | } |
| 437 | |
| 438 | @Test |
| 439 | void testMissingVariantSignature() { |
| 440 | var data = new byte[] {0x01}; |
| 441 | |
| 442 | var decoder = Decoder.ofVariant(); |
| 443 | assertThrows(IllegalArgumentException.class, () -> decoder.decode(ByteBuffer.wrap(data))); |
| 444 | } |
| 445 | |
| 446 | @Test |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 447 | void testSimpleVariantRecord() throws ParseException { |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 448 | // signature: "(bynqiuxtdsogvmiai)" |
| 449 | var data = |
| 450 | new byte[] { |
| 451 | 0x01, // b |
| 452 | 0x02, // y |
| 453 | 0x00, 0x03, // n |
| 454 | 0x00, 0x04, // q |
| 455 | 0x00, 0x00, // (padding) |
| 456 | 0x00, 0x00, 0x00, 0x05, // i |
| 457 | 0x00, 0x00, 0x00, 0x06, // u |
| 458 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, // x |
| 459 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, // t |
| 460 | 0x40, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // d |
| 461 | 0x68, 0x69, 0x00, // s |
| 462 | 0x68, 0x69, 0x00, // o |
| 463 | 0x68, 0x69, 0x00, // g |
| 464 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // (padding) |
| 465 | 0x00, 0x00, 0x00, 0x09, 0x00, 0x69, // v |
| 466 | 0x00, 0x00, // (padding) |
| 467 | 0x00, 0x00, 0x00, 0x0a, // mi |
| 468 | 0x00, 0x00, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x0c, // ai |
| 469 | 68, 62, 49, 46, 43, // framing offsets |
| 470 | 0x00, 0x28, 0x62, 0x79, 0x6E, 0x71, 0x69, 0x75, 0x78, 0x74, 0x64, 0x73, 0x6F, 0x67, 0x76, |
| 471 | 0x6D, 0x69, 0x61, 0x69, 0x29 |
| 472 | }; |
| 473 | |
| 474 | var decoder = Decoder.ofVariant(); |
| 475 | assertArrayEquals( |
| 476 | new Object[] { |
| 477 | true, |
| 478 | (byte) 2, |
| 479 | (short) 3, |
| 480 | (short) 4, |
| 481 | (int) 5, |
| 482 | (int) 6, |
| 483 | (long) 7, |
| 484 | (long) 8, |
| 485 | (double) 3.25, |
| 486 | "hi", |
| 487 | "hi", |
| 488 | "hi", |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 489 | new Variant(Signature.parse("i"), 9), |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 490 | Optional.of(10), |
| 491 | List.of(11, 12) |
| 492 | }, |
Matthias Andreas Benkard | 31c61e7 | 2021-12-16 20:06:39 +0100 | [diff] [blame] | 493 | (Object[]) decoder.decode(ByteBuffer.wrap(data)).value()); |
| 494 | } |
| 495 | |
| 496 | @Test |
| 497 | void testSignatureString() throws ParseException { |
| 498 | var data = |
| 499 | new byte[] { |
| 500 | 0x28, 0x62, 0x79, 0x6E, 0x71, 0x69, 0x75, 0x78, 0x74, 0x64, 0x73, 0x6F, 0x67, 0x76, 0x6D, |
| 501 | 0x69, 0x61, 0x69, 0x29 |
| 502 | }; |
| 503 | |
| 504 | var signature = Signature.parse(ByteBuffer.wrap(data)); |
| 505 | assertEquals("(bynqiuxtdsogvmiai)", signature.toString()); |
Matthias Andreas Benkard | e5a5c75 | 2021-12-15 19:53:55 +0100 | [diff] [blame] | 506 | } |
Matthias Andreas Benkard | 4e8423d | 2021-12-19 22:56:09 +0100 | [diff] [blame] | 507 | |
| 508 | @Test |
| 509 | void testMap() { |
| 510 | var data = new byte[] {0x0A, 0x0B, 0x0C}; |
| 511 | var decoder = Decoder.ofByteArray().map(bytes -> bytes.length); |
| 512 | assertEquals(3, decoder.decode(ByteBuffer.wrap(data))); |
| 513 | } |
Matthias Andreas Benkard | 44df94e | 2021-12-30 18:43:33 +0100 | [diff] [blame] | 514 | |
| 515 | @Test |
| 516 | void testContramap() { |
| 517 | var data = new byte[] {0x0A, 0x0B, 0x0C}; |
| 518 | var decoder = Decoder.ofByteArray().contramap(bytes -> bytes.slice(1, 1)); |
| 519 | assertArrayEquals(new byte[] {0x0B}, decoder.decode(ByteBuffer.wrap(data))); |
| 520 | } |
| 521 | |
| 522 | @Test |
| 523 | void testPredicateTrue() { |
| 524 | var data = new byte[] {0x00, 0x01, 0x00}; |
| 525 | var innerDecoder = Decoder.ofShort().contramap(bytes -> bytes.slice(1, 2).order(bytes.order())); |
| 526 | var decoder = |
| 527 | Decoder.ofPredicate( |
| 528 | byteBuffer -> byteBuffer.get(0) == 0, |
| 529 | innerDecoder.withByteOrder(LITTLE_ENDIAN), |
| 530 | innerDecoder.withByteOrder(BIG_ENDIAN)); |
| 531 | assertEquals((short) 1, decoder.decode(ByteBuffer.wrap(data))); |
| 532 | } |
| 533 | |
| 534 | @Test |
| 535 | void testPredicateFalse() { |
| 536 | var data = new byte[] {0x01, 0x01, 0x00}; |
| 537 | var innerDecoder = Decoder.ofShort().contramap(bytes -> bytes.slice(1, 2).order(bytes.order())); |
| 538 | var decoder = |
| 539 | Decoder.ofPredicate( |
| 540 | byteBuffer -> byteBuffer.get(0) == 0, |
| 541 | innerDecoder.withByteOrder(LITTLE_ENDIAN), |
| 542 | innerDecoder.withByteOrder(BIG_ENDIAN)); |
| 543 | assertEquals((short) 256, decoder.decode(ByteBuffer.wrap(data))); |
| 544 | } |
| 545 | |
| 546 | @Test |
| 547 | void testByteOrder() { |
| 548 | var data = |
| 549 | new byte[] { |
| 550 | 0x01, 0x00, 0x02, 0x00, 0x00, 0x03, 0x00, 0x04, 0x05, 0x00, 0x00, 0x06, 0x00, 0x07, 0x08, |
| 551 | 0x00 |
| 552 | }; |
| 553 | |
| 554 | record TestChild(short s1, short s2) {} |
| 555 | record TestParent(TestChild tc1, TestChild tc2, TestChild tc3, TestChild tc4) {} |
| 556 | |
| 557 | var decoder = |
| 558 | Decoder.ofStructure( |
| 559 | TestParent.class, |
| 560 | Decoder.ofStructure(TestChild.class, Decoder.ofShort(), Decoder.ofShort()) |
| 561 | .withByteOrder(LITTLE_ENDIAN), |
| 562 | Decoder.ofStructure(TestChild.class, Decoder.ofShort(), Decoder.ofShort()) |
| 563 | .withByteOrder(BIG_ENDIAN), |
| 564 | Decoder.ofStructure( |
| 565 | TestChild.class, |
| 566 | Decoder.ofShort().withByteOrder(LITTLE_ENDIAN), |
| 567 | Decoder.ofShort()) |
| 568 | .withByteOrder(BIG_ENDIAN), |
| 569 | Decoder.ofStructure( |
| 570 | TestChild.class, Decoder.ofShort().withByteOrder(BIG_ENDIAN), Decoder.ofShort()) |
| 571 | .withByteOrder(LITTLE_ENDIAN)); |
| 572 | |
| 573 | assertEquals( |
| 574 | new TestParent( |
| 575 | new TestChild((short) 1, (short) 2), |
| 576 | new TestChild((short) 3, (short) 4), |
| 577 | new TestChild((short) 5, (short) 6), |
| 578 | new TestChild((short) 7, (short) 8)), |
| 579 | decoder.decode(ByteBuffer.wrap(data))); |
| 580 | } |
Matthias Andreas Benkard | 261532a | 2021-12-12 20:09:27 +0100 | [diff] [blame] | 581 | } |