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