net.mograsim.logic.core/src/net/mograsim/logic/core/tests/ComponentTest.java

   1 package net.mograsim.logic.core.tests;\r
   2 \r
   3 import static org.junit.jupiter.api.Assertions.assertArrayEquals;\r
   4 import static org.junit.jupiter.api.Assertions.assertEquals;\r
   5 import static org.junit.jupiter.api.Assertions.fail;\r
   6 \r
   7 import java.util.function.LongConsumer;\r
   8 \r
   9 import org.junit.jupiter.api.Test;\r
  10 \r
  11 import net.mograsim.logic.core.components.Connector;\r
  12 import net.mograsim.logic.core.components.Demux;\r
  13 import net.mograsim.logic.core.components.Merger;\r
  14 import net.mograsim.logic.core.components.Mux;\r
  15 import net.mograsim.logic.core.components.Splitter;\r
  16 import net.mograsim.logic.core.components.TriStateBuffer;\r
  17 import net.mograsim.logic.core.components.gates.AndGate;\r
  18 import net.mograsim.logic.core.components.gates.NandGate;\r
  19 import net.mograsim.logic.core.components.gates.NorGate;\r
  20 import net.mograsim.logic.core.components.gates.NotGate;\r
  21 import net.mograsim.logic.core.components.gates.OrGate;\r
  22 import net.mograsim.logic.core.components.gates.XorGate;\r
  23 import net.mograsim.logic.core.timeline.Timeline;\r
  24 import net.mograsim.logic.core.types.Bit;\r
  25 import net.mograsim.logic.core.types.BitVector;\r
  26 import net.mograsim.logic.core.wires.Wire;\r
  27 import net.mograsim.logic.core.wires.Wire.ReadEnd;\r
  28 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;\r
  29 \r
  30 @SuppressWarnings("unused")\r
  31 class ComponentTest\r
  32 {\r
  33         private Timeline t = new Timeline(11);\r
  34 \r
  35         @Test\r
  36         void circuitExampleTest()\r
  37         {\r
  38                 Wire a = new Wire(t, 1, 1), b = new Wire(t, 1, 1), c = new Wire(t, 1, 10), d = new Wire(t, 2, 1), e = new Wire(t, 1, 1),\r
  39                                 f = new Wire(t, 1, 1), g = new Wire(t, 1, 1), h = new Wire(t, 2, 1), i = new Wire(t, 2, 1), j = new Wire(t, 1, 1),\r
  40                                 k = new Wire(t, 1, 1);\r
  41                 new AndGate(t, 1, f.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
  42                 new NotGate(t, 1, f.createReadOnlyEnd(), g.createReadWriteEnd());\r
  43                 new Merger(t, h.createReadWriteEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());\r
  44                 new Mux(t, 1, i.createReadWriteEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());\r
  45                 new Splitter(t, i.createReadOnlyEnd(), k.createReadWriteEnd(), j.createReadWriteEnd());\r
  46 \r
  47                 a.createReadWriteEnd().feedSignals(Bit.ZERO);\r
  48                 b.createReadWriteEnd().feedSignals(Bit.ONE);\r
  49                 c.createReadWriteEnd().feedSignals(Bit.ZERO);\r
  50                 d.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE);\r
  51                 e.createReadWriteEnd().feedSignals(Bit.ZERO);\r
  52 \r
  53                 t.executeAll();\r
  54 \r
  55                 assertEquals(Bit.ONE, j.getValue());\r
  56                 assertEquals(Bit.ZERO, k.getValue());\r
  57         }\r
  58 \r
  59         @Test\r
  60         void splitterTest()\r
  61         {\r
  62                 t.reset();\r
  63                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 2, 1), c = new Wire(t, 3, 1), in = new Wire(t, 8, 1);\r
  64                 in.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
  65                 new Splitter(t, in.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(), c.createReadWriteEnd());\r
  66 \r
  67                 t.executeAll();\r
  68 \r
  69                 assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);\r
  70                 assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);\r
  71                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);\r
  72         }\r
  73 \r
  74         @Test\r
  75         void mergerTest()\r
  76         {\r
  77                 t.reset();\r
  78                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 2, 1), c = new Wire(t, 3, 1), out = new Wire(t, 8, 1);\r
  79                 a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);\r
  80                 b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO);\r
  81                 c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
  82 \r
  83                 new Merger(t, out.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
  84 \r
  85                 t.executeAll();\r
  86 \r
  87                 assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
  88         }\r
  89 \r
  90         @Test\r
  91         void fusionTest1()\r
  92         {\r
  93                 t.reset();\r
  94                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 2, 1), c = new Wire(t, 3, 1), out = new Wire(t, 8, 1);\r
  95                 Wire.fuse(a, out, 0, 0, a.length);\r
  96                 Wire.fuse(b, out, 0, a.length, b.length);\r
  97                 Wire.fuse(c, out, 0, a.length + b.length, c.length);\r
  98                 ReadWriteEnd rA = a.createReadWriteEnd();\r
  99                 rA.feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 100                 ReadWriteEnd rB = b.createReadWriteEnd();\r
 101                 rB.feedSignals(Bit.ONE, Bit.ZERO);\r
 102                 ReadWriteEnd rC = c.createReadWriteEnd();\r
 103                 rC.feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
 104                 t.executeAll();\r
 105                 assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 106                 out.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 107                 t.executeAll();\r
 108                 assertBitArrayEquals(rA.getValues(), Bit.X, Bit.X, Bit.X);\r
 109                 assertBitArrayEquals(rB.getValues(), Bit.X, Bit.X);\r
 110                 assertBitArrayEquals(rC.getValues(), Bit.X, Bit.X, Bit.X);\r
 111                 rA.clearSignals();\r
 112                 rB.clearSignals();\r
 113                 rC.clearSignals();\r
 114                 t.executeAll();\r
 115                 assertBitArrayEquals(rA.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);\r
 116                 assertBitArrayEquals(rB.getValues(), Bit.ZERO, Bit.ONE);\r
 117                 assertBitArrayEquals(rC.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 118         }\r
 119 \r
 120         @Test\r
 121         void fusionTest2()\r
 122         {\r
 123                 t.reset();\r
 124                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 1);\r
 125                 Wire.fuse(a, b);\r
 126                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.U, Bit.Z);\r
 127                 t.executeAll();\r
 128                 assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.U, Bit.Z);\r
 129         }\r
 130 \r
 131         @Test\r
 132         void triStateBufferTest()\r
 133         {\r
 134                 Wire a = new Wire(t, 1, 1), b = new Wire(t, 1, 1), en = new Wire(t, 1, 1), notEn = new Wire(t, 1, 1);\r
 135                 new NotGate(t, 1, en.createReadOnlyEnd(), notEn.createReadWriteEnd());\r
 136                 new TriStateBuffer(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd(), en.createReadOnlyEnd());\r
 137                 new TriStateBuffer(t, 1, b.createReadOnlyEnd(), a.createReadWriteEnd(), notEn.createReadOnlyEnd());\r
 138 \r
 139                 ReadWriteEnd enI = en.createReadWriteEnd(), aI = a.createReadWriteEnd(), bI = b.createReadWriteEnd();\r
 140                 enI.feedSignals(Bit.ONE);\r
 141                 aI.feedSignals(Bit.ONE);\r
 142                 bI.feedSignals(Bit.Z);\r
 143 \r
 144                 t.executeAll();\r
 145 \r
 146                 assertEquals(Bit.ONE, b.getValue());\r
 147 \r
 148                 bI.feedSignals(Bit.ZERO);\r
 149 \r
 150                 t.executeAll();\r
 151 \r
 152                 assertEquals(Bit.X, b.getValue());\r
 153                 assertEquals(Bit.ONE, a.getValue());\r
 154 \r
 155                 aI.clearSignals();\r
 156                 enI.feedSignals(Bit.ZERO);\r
 157 \r
 158                 t.executeAll();\r
 159 \r
 160                 assertEquals(Bit.ZERO, a.getValue());\r
 161 \r
 162         }\r
 163 \r
 164         @Test\r
 165         void muxTest()\r
 166         {\r
 167                 t.reset();\r
 168                 Wire a = new Wire(t, 4, 3), b = new Wire(t, 4, 6), c = new Wire(t, 4, 4), select = new Wire(t, 2, 5), out = new Wire(t, 4, 1);\r
 169                 ReadWriteEnd selectIn = select.createReadWriteEnd();\r
 170 \r
 171                 selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
 172                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 173                 c.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 174 \r
 175                 new Mux(t, 1, out.createReadWriteEnd(), select.createReadOnlyEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(),\r
 176                                 c.createReadOnlyEnd());\r
 177                 t.executeAll();\r
 178 \r
 179                 assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 180                 selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
 181                 t.executeAll();\r
 182 \r
 183                 assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 184 \r
 185                 selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
 186                 t.executeAll();\r
 187 \r
 188                 assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 189 \r
 190         }\r
 191 \r
 192         @Test\r
 193         void demuxTest()\r
 194         {\r
 195                 t.reset();\r
 196                 Wire a = new Wire(t, 4, 3), b = new Wire(t, 4, 6), c = new Wire(t, 4, 4), select = new Wire(t, 2, 5), in = new Wire(t, 4, 1);\r
 197                 ReadWriteEnd selectIn = select.createReadWriteEnd();\r
 198 \r
 199                 selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
 200                 in.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 201 \r
 202                 new Demux(t, 1, in.createReadOnlyEnd(), select.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(),\r
 203                                 c.createReadWriteEnd());\r
 204                 t.executeAll();\r
 205 \r
 206                 assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 207                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 208                 assertBitArrayEquals(c.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 209                 selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
 210                 t.executeAll();\r
 211 \r
 212                 assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 213                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 214                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 215 \r
 216                 selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
 217                 t.executeAll();\r
 218 \r
 219                 assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 220                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 221                 assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 222 \r
 223         }\r
 224 \r
 225         @Test\r
 226         void andTest()\r
 227         {\r
 228                 t.reset();\r
 229                 Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);\r
 230                 new AndGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
 231                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 232                 b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 233 \r
 234                 t.executeAll();\r
 235 \r
 236                 assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 237         }\r
 238 \r
 239         @Test\r
 240         void orTest()\r
 241         {\r
 242                 t.reset();\r
 243                 Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);\r
 244                 new OrGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
 245                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 246                 b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 247 \r
 248                 t.executeAll();\r
 249 \r
 250                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 251         }\r
 252 \r
 253         @Test\r
 254         void nandTest()\r
 255         {\r
 256                 t.reset();\r
 257                 Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1), d = new Wire(t, 4, 1);\r
 258                 new NandGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
 259                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 260                 b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 261                 c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 262 \r
 263                 t.executeAll();\r
 264 \r
 265                 assertBitArrayEquals(d.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ONE);\r
 266         }\r
 267 \r
 268         @Test\r
 269         void norTest()\r
 270         {\r
 271                 t.reset();\r
 272                 Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1), d = new Wire(t, 4, 1);\r
 273                 new NorGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
 274                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 275                 b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 276                 c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 277 \r
 278                 t.executeAll();\r
 279 \r
 280                 assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 281         }\r
 282 \r
 283         @Test\r
 284         void xorTest()\r
 285         {\r
 286                 t.reset();\r
 287                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 2), c = new Wire(t, 3, 1), d = new Wire(t, 3, 1);\r
 288                 new XorGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
 289                 a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
 290                 b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
 291                 c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
 292 \r
 293                 t.executeAll();\r
 294 \r
 295                 assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);\r
 296         }\r
 297 \r
 298         @Test\r
 299         void notTest()\r
 300         {\r
 301                 t.reset();\r
 302                 Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 2);\r
 303                 new NotGate(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd());\r
 304                 a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
 305 \r
 306                 t.executeAll();\r
 307 \r
 308                 assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 309         }\r
 310 \r
 311         @Test\r
 312         void rsLatchCircuitTest()\r
 313         {\r
 314                 t.reset();\r
 315                 Wire r = new Wire(t, 1, 1), s = new Wire(t, 1, 1), t1 = new Wire(t, 1, 15), t2 = new Wire(t, 1, 1), q = new Wire(t, 1, 1),\r
 316                                 nq = new Wire(t, 1, 1);\r
 317 \r
 318                 new OrGate(t, 1, t2.createReadWriteEnd(), r.createReadOnlyEnd(), nq.createReadOnlyEnd());\r
 319                 new OrGate(t, 1, t1.createReadWriteEnd(), s.createReadOnlyEnd(), q.createReadOnlyEnd());\r
 320                 new NotGate(t, 1, t2.createReadOnlyEnd(), q.createReadWriteEnd());\r
 321                 new NotGate(t, 1, t1.createReadOnlyEnd(), nq.createReadWriteEnd());\r
 322 \r
 323                 ReadWriteEnd sIn = s.createReadWriteEnd(), rIn = r.createReadWriteEnd();\r
 324 \r
 325                 sIn.feedSignals(Bit.ONE);\r
 326                 rIn.feedSignals(Bit.ZERO);\r
 327 \r
 328                 t.executeAll();\r
 329 \r
 330                 assertEquals(Bit.ONE, q.getValue());\r
 331                 assertEquals(Bit.ZERO, nq.getValue());\r
 332 \r
 333                 sIn.feedSignals(Bit.ZERO);\r
 334 \r
 335                 t.executeAll();\r
 336                 assertEquals(Bit.ONE, q.getValue());\r
 337                 assertEquals(Bit.ZERO, nq.getValue());\r
 338 \r
 339                 rIn.feedSignals(Bit.ONE);\r
 340 \r
 341                 t.executeAll();\r
 342 \r
 343                 assertEquals(Bit.ZERO, q.getValue());\r
 344                 assertEquals(Bit.ONE, nq.getValue());\r
 345         }\r
 346 \r
 347         @Test\r
 348         void numericValueTest()\r
 349         {\r
 350                 t.reset();\r
 351 \r
 352                 Wire a = new Wire(t, 4, 1);\r
 353                 a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);\r
 354 \r
 355                 t.executeAll();\r
 356 \r
 357                 assertEquals(15, a.getUnsignedValue());\r
 358                 assertEquals(-1, a.getSignedValue());\r
 359         }\r
 360 \r
 361         boolean flag = false;\r
 362 \r
 363         @Test\r
 364         void simpleTimelineTest()\r
 365         {\r
 366                 Timeline t = new Timeline(3);\r
 367                 flag = false;\r
 368                 t.addEvent((e) ->\r
 369                 {\r
 370                         if (!flag)\r
 371                                 fail("Events executed out of order!");\r
 372                         flag = false;\r
 373                 }, 15);\r
 374                 t.addEvent((e) ->\r
 375                 {\r
 376                         if (flag)\r
 377                                 fail("Events executed out of order!");\r
 378                         flag = true;\r
 379                 }, 10);\r
 380                 t.addEvent((e) ->\r
 381                 {\r
 382                         if (flag)\r
 383                                 fail("Events executed out of order!");\r
 384                         flag = true;\r
 385                 }, 20);\r
 386                 t.addEvent((e) ->\r
 387                 {\r
 388                         fail("Only supposed to execute until timestamp 20, not 25");\r
 389                 }, 25);\r
 390 \r
 391                 t.executeUntil(t.laterThan(20), 100);\r
 392 \r
 393                 if (!flag)\r
 394                         fail("Not all events were executed in order!");\r
 395         }\r
 396 \r
 397         @Test\r
 398         void multipleInputs()\r
 399         {\r
 400                 t.reset();\r
 401                 Wire w = new Wire(t, 2, 1);\r
 402                 ReadWriteEnd wI1 = w.createReadWriteEnd(), wI2 = w.createReadWriteEnd();\r
 403                 wI1.feedSignals(Bit.ONE, Bit.Z);\r
 404                 wI2.feedSignals(Bit.Z, Bit.X);\r
 405                 t.executeAll();\r
 406                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);\r
 407 \r
 408                 wI2.feedSignals(Bit.ZERO, Bit.Z);\r
 409                 t.executeAll();\r
 410                 assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);\r
 411 \r
 412                 wI2.feedSignals(Bit.Z, Bit.Z);\r
 413                 t.executeAll();\r
 414                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
 415 \r
 416                 wI2.feedSignals(Bit.ONE, Bit.Z);\r
 417                 ReadEnd rE = w.createReadOnlyEnd();\r
 418                 rE.registerObserver((i) -> fail("WireEnd notified observer, although value did not change."));\r
 419                 t.executeAll();\r
 420                 rE.close();\r
 421                 wI1.feedSignals(Bit.X, Bit.X);\r
 422                 t.executeAll();\r
 423                 wI1.registerObserver((i) -> fail("WireEnd notified observer, although it was closed."));\r
 424                 wI1.close();\r
 425                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
 426         }\r
 427 \r
 428         @Test\r
 429         void wireConnections()\r
 430         {\r
 431                 // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde\r
 432 \r
 433                 t.reset();\r
 434 \r
 435                 Wire a = new Wire(t, 1, 2);\r
 436                 Wire b = new Wire(t, 1, 2);\r
 437                 Wire c = new Wire(t, 1, 2);\r
 438                 ReadWriteEnd aI = a.createReadWriteEnd();\r
 439                 ReadWriteEnd bI = b.createReadWriteEnd();\r
 440                 ReadWriteEnd cI = c.createReadWriteEnd();\r
 441 \r
 442                 TestBitDisplay test = new TestBitDisplay(t, c.createReadOnlyEnd());\r
 443                 TestBitDisplay test2 = new TestBitDisplay(t, a.createReadOnlyEnd());\r
 444                 LongConsumer print = time -> System.out.format("Time %2d\n a: %s\n b: %s\n c: %s\n", time, a, b, c);\r
 445 \r
 446                 cI.feedSignals(Bit.ONE);\r
 447                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 448 \r
 449                 cI.feedSignals(Bit.X);\r
 450                 test.assertAfterSimulationIs(print, Bit.X);\r
 451 \r
 452                 cI.feedSignals(Bit.X);\r
 453                 cI.feedSignals(Bit.Z);\r
 454                 test.assertAfterSimulationIs(print, Bit.Z);\r
 455 \r
 456                 new Connector(t, b.createReadWriteEnd(), c.createReadWriteEnd()).connect();\r
 457                 test.assertAfterSimulationIs(print, Bit.Z);\r
 458                 System.err.println("ONE");\r
 459                 bI.feedSignals(Bit.ONE);\r
 460                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 461                 System.err.println("ZERO");\r
 462                 bI.feedSignals(Bit.ZERO);\r
 463                 test.assertAfterSimulationIs(print, Bit.ZERO);\r
 464                 System.err.println("Z");\r
 465                 bI.feedSignals(Bit.Z);\r
 466                 test.assertAfterSimulationIs(print, Bit.Z);\r
 467 \r
 468                 new Connector(t, a.createReadWriteEnd(), b.createReadWriteEnd()).connect();\r
 469                 System.err.println("Z 2");\r
 470                 aI.feedSignals(Bit.Z);\r
 471                 test.assertAfterSimulationIs(print, Bit.Z);\r
 472                 test2.assertAfterSimulationIs(Bit.Z);\r
 473                 System.err.println("ONE 2");\r
 474                 aI.feedSignals(Bit.ONE);\r
 475                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 476                 test2.assertAfterSimulationIs(Bit.ONE);\r
 477                 System.err.println("ZERO 2");\r
 478                 aI.feedSignals(Bit.ZERO);\r
 479                 test.assertAfterSimulationIs(print, Bit.ZERO);\r
 480                 test2.assertAfterSimulationIs(Bit.ZERO);\r
 481                 System.err.println("Z 2 II");\r
 482                 aI.feedSignals(Bit.Z);\r
 483                 test.assertAfterSimulationIs(print, Bit.Z);\r
 484                 test2.assertAfterSimulationIs(Bit.Z);\r
 485 \r
 486                 System.err.println("No Conflict yet");\r
 487                 bI.feedSignals(Bit.ONE);\r
 488                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 489                 test2.assertAfterSimulationIs(Bit.ONE);\r
 490                 aI.feedSignals(Bit.ONE);\r
 491                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 492                 test2.assertAfterSimulationIs(Bit.ONE);\r
 493                 System.err.println("Conflict");\r
 494                 aI.feedSignals(Bit.ZERO);\r
 495                 test.assertAfterSimulationIs(print, Bit.X);\r
 496                 test2.assertAfterSimulationIs(Bit.X);\r
 497                 aI.feedSignals(Bit.ONE);\r
 498                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 499                 test2.assertAfterSimulationIs(Bit.ONE);\r
 500         }\r
 501 \r
 502         private static void assertBitArrayEquals(BitVector actual, Bit... expected)\r
 503         {\r
 504                 assertArrayEquals(expected, actual.getBits());\r
 505         }\r
 506 }\r