era.mi/src/era/mi/logic/tests/ComponentTest.java

   1 package era.mi.logic.tests;\r
   2 \r
   3 import static org.junit.jupiter.api.Assertions.*;\r
   4 \r
   5 import java.util.Arrays;\r
   6 import java.util.function.LongConsumer;\r
   7 \r
   8 import org.junit.jupiter.api.Test;\r
   9 \r
  10 import era.mi.logic.Bit;\r
  11 import era.mi.logic.Simulation;\r
  12 import era.mi.logic.components.Demux;\r
  13 import era.mi.logic.components.Merger;\r
  14 import era.mi.logic.components.Mux;\r
  15 import era.mi.logic.components.Splitter;\r
  16 import era.mi.logic.components.TriStateBuffer;\r
  17 import era.mi.logic.components.gates.AndGate;\r
  18 import era.mi.logic.components.gates.NotGate;\r
  19 import era.mi.logic.components.gates.OrGate;\r
  20 import era.mi.logic.components.gates.XorGate;\r
  21 import era.mi.logic.wires.WireArray;\r
  22 import era.mi.logic.wires.WireArray.WireArrayEnd;\r
  23 \r
  24 class ComponentTest\r
  25 {\r
  26 \r
  27         @Test\r
  28         void circuitExampleTest()\r
  29         {\r
  30                 Simulation.TIMELINE.reset();\r
  31                 WireArray a = new WireArray(1, 1), b = new WireArray(1, 1), c = new WireArray(1, 10), d = new WireArray(2, 1),\r
  32                                 e = new WireArray(1, 1), f = new WireArray(1, 1), g = new WireArray(1, 1), h = new WireArray(2, 1), i = new WireArray(2, 1),\r
  33                                 j = new WireArray(1, 1), k = new WireArray(1, 1);\r
  34                 new AndGate(1, f, a, b);\r
  35                 new NotGate(1, f, g);\r
  36                 new Merger(h, c, g);\r
  37                 new Mux(1, i, e, h, d);\r
  38                 new Splitter(i, k, j);\r
  39 \r
  40                 a.createInput().feedSignals(Bit.ZERO);\r
  41                 b.createInput().feedSignals(Bit.ONE);\r
  42                 c.createInput().feedSignals(Bit.ZERO);\r
  43                 d.createInput().feedSignals(Bit.ONE, Bit.ONE);\r
  44                 e.createInput().feedSignals(Bit.ZERO);\r
  45 \r
  46                 Simulation.TIMELINE.executeAll();\r
  47 \r
  48                 assertEquals(Bit.ONE, j.getValue());\r
  49                 assertEquals(Bit.ZERO, k.getValue());\r
  50         }\r
  51 \r
  52         @Test\r
  53         void splitterTest()\r
  54         {\r
  55                 Simulation.TIMELINE.reset();\r
  56                 WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), in = new WireArray(8, 1);\r
  57                 in.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
  58                 new Splitter(in, a, b, c);\r
  59 \r
  60                 Simulation.TIMELINE.executeAll();\r
  61 \r
  62                 assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);\r
  63                 assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);\r
  64                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);\r
  65         }\r
  66 \r
  67         @Test\r
  68         void mergerTest()\r
  69         {\r
  70                 Simulation.TIMELINE.reset();\r
  71                 WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), out = new WireArray(8, 1);\r
  72                 a.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);\r
  73                 b.createInput().feedSignals(Bit.ONE, Bit.ZERO);\r
  74                 c.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
  75 \r
  76                 new Merger(out, a, b, c);\r
  77 \r
  78                 Simulation.TIMELINE.executeAll();\r
  79 \r
  80                 assertTrue(\r
  81                                 Arrays.equals(out.getValues(), new Bit[] { Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE }));\r
  82         }\r
  83 \r
  84         @Test\r
  85         void triStateBufferTest()\r
  86         {\r
  87                 WireArray a = new WireArray(1, 1), b = new WireArray(1, 1), en = new WireArray(1, 1), notEn = new WireArray(1, 1);\r
  88                 new NotGate(1, en, notEn);\r
  89                 new TriStateBuffer(1, a, b, en);\r
  90                 new TriStateBuffer(1, b, a, notEn);\r
  91 \r
  92                 WireArrayEnd enI = en.createInput(), aI = a.createInput(), bI = b.createInput();\r
  93                 enI.feedSignals(Bit.ONE);\r
  94                 aI.feedSignals(Bit.ONE);\r
  95 \r
  96                 Simulation.TIMELINE.executeAll();\r
  97 \r
  98                 assertEquals(Bit.ONE, b.getValue());\r
  99 \r
 100                 bI.feedSignals(Bit.ZERO);\r
 101 \r
 102                 Simulation.TIMELINE.executeAll();\r
 103 \r
 104                 assertEquals(Bit.X, b.getValue());\r
 105                 assertEquals(Bit.ONE, a.getValue());\r
 106 \r
 107                 aI.clearSignals();\r
 108                 enI.feedSignals(Bit.ZERO);\r
 109 \r
 110                 Simulation.TIMELINE.executeAll();\r
 111 \r
 112                 assertEquals(Bit.ZERO, a.getValue());\r
 113 \r
 114         }\r
 115 \r
 116         @Test\r
 117         void muxTest()\r
 118         {\r
 119                 Simulation.TIMELINE.reset();\r
 120                 WireArray a = new WireArray(4, 3), b = new WireArray(4, 6), c = new WireArray(4, 4), select = new WireArray(2, 5),\r
 121                                 out = new WireArray(4, 1);\r
 122                 WireArrayEnd selectIn = select.createInput();\r
 123 \r
 124                 selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
 125                 a.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 126                 c.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 127 \r
 128                 new Mux(1, out, select, a, b, c);\r
 129                 Simulation.TIMELINE.executeAll();\r
 130 \r
 131                 assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 132                 selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
 133                 Simulation.TIMELINE.executeAll();\r
 134 \r
 135                 assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 136 \r
 137                 selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
 138                 Simulation.TIMELINE.executeAll();\r
 139 \r
 140                 assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 141 \r
 142         }\r
 143 \r
 144         @Test\r
 145         void demuxTest()\r
 146         {\r
 147                 Simulation.TIMELINE.reset();\r
 148                 WireArray a = new WireArray(4, 3), b = new WireArray(4, 6), c = new WireArray(4, 4), select = new WireArray(2, 5),\r
 149                                 in = new WireArray(4, 1);\r
 150                 WireArrayEnd selectIn = select.createInput();\r
 151 \r
 152                 selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
 153                 in.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 154 \r
 155                 new Demux(1, in, select, a, b, c);\r
 156                 Simulation.TIMELINE.executeAll();\r
 157 \r
 158                 assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 159                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 160                 assertBitArrayEquals(c.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 161                 selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
 162                 Simulation.TIMELINE.executeAll();\r
 163 \r
 164                 assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 165                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 166                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
 167 \r
 168                 selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
 169                 Simulation.TIMELINE.executeAll();\r
 170 \r
 171                 assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 172                 assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
 173                 assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
 174 \r
 175         }\r
 176 \r
 177         @Test\r
 178         void andTest()\r
 179         {\r
 180                 Simulation.TIMELINE.reset();\r
 181                 WireArray a = new WireArray(4, 1), b = new WireArray(4, 3), c = new WireArray(4, 1);\r
 182                 new AndGate(1, c, a, b);\r
 183                 a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 184                 b.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 185 \r
 186                 Simulation.TIMELINE.executeAll();\r
 187 \r
 188                 assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 189         }\r
 190 \r
 191         @Test\r
 192         void orTest()\r
 193         {\r
 194                 Simulation.TIMELINE.reset();\r
 195                 WireArray a = new WireArray(4, 1), b = new WireArray(4, 3), c = new WireArray(4, 1);\r
 196                 new OrGate(1, c, a, b);\r
 197                 a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
 198                 b.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 199 \r
 200                 Simulation.TIMELINE.executeAll();\r
 201 \r
 202                 assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);\r
 203         }\r
 204 \r
 205         @Test\r
 206         void xorTest()\r
 207         {\r
 208                 Simulation.TIMELINE.reset();\r
 209                 WireArray a = new WireArray(3, 1), b = new WireArray(3, 2), c = new WireArray(3, 1), d = new WireArray(3, 1);\r
 210                 new XorGate(1, d, a, b, c);\r
 211                 a.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
 212                 b.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
 213                 c.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
 214 \r
 215                 Simulation.TIMELINE.executeAll();\r
 216 \r
 217                 assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);\r
 218         }\r
 219 \r
 220         @Test\r
 221         void rsLatchCircuitTest()\r
 222         {\r
 223                 Simulation.TIMELINE.reset();\r
 224                 WireArray r = new WireArray(1, 1), s = new WireArray(1, 1), t1 = new WireArray(1, 15), t2 = new WireArray(1, 1),\r
 225                                 q = new WireArray(1, 1), nq = new WireArray(1, 1);\r
 226 \r
 227                 new OrGate(1, t2, r, nq);\r
 228                 new OrGate(1, t1, s, q);\r
 229                 new NotGate(1, t2, q);\r
 230                 new NotGate(1, t1, nq);\r
 231 \r
 232                 WireArrayEnd sIn = s.createInput(), rIn = r.createInput();\r
 233 \r
 234                 sIn.feedSignals(Bit.ONE);\r
 235                 rIn.feedSignals(Bit.ZERO);\r
 236 \r
 237                 Simulation.TIMELINE.executeAll();\r
 238 \r
 239                 assertEquals(Bit.ONE, q.getValue());\r
 240                 assertEquals(Bit.ZERO, nq.getValue());\r
 241 \r
 242                 sIn.feedSignals(Bit.ZERO);\r
 243 \r
 244                 Simulation.TIMELINE.executeAll();\r
 245                 assertEquals(Bit.ONE, q.getValue());\r
 246                 assertEquals(Bit.ZERO, nq.getValue());\r
 247 \r
 248                 rIn.feedSignals(Bit.ONE);\r
 249 \r
 250                 Simulation.TIMELINE.executeAll();\r
 251 \r
 252                 assertEquals(Bit.ZERO, q.getValue());\r
 253                 assertEquals(Bit.ONE, nq.getValue());\r
 254         }\r
 255 \r
 256         @Test\r
 257         void numericValueTest()\r
 258         {\r
 259                 Simulation.TIMELINE.reset();\r
 260 \r
 261                 WireArray a = new WireArray(4, 1);\r
 262                 a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);\r
 263 \r
 264                 Simulation.TIMELINE.executeAll();\r
 265 \r
 266                 assertEquals(15, a.getUnsignedValue());\r
 267                 assertEquals(-1, a.getSignedValue());\r
 268         }\r
 269 \r
 270         @Test\r
 271         void multipleInputs()\r
 272         {\r
 273                 Simulation.TIMELINE.reset();\r
 274                 WireArray w = new WireArray(2, 1);\r
 275                 WireArrayEnd wI1 = w.createInput(), wI2 = w.createInput();\r
 276                 wI1.feedSignals(Bit.ONE, Bit.Z);\r
 277                 wI2.feedSignals(Bit.Z, Bit.X);\r
 278                 Simulation.TIMELINE.executeAll();\r
 279                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);\r
 280 \r
 281                 wI2.feedSignals(Bit.ZERO, Bit.Z);\r
 282                 Simulation.TIMELINE.executeAll();\r
 283                 assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);\r
 284 \r
 285                 wI2.feedSignals(Bit.Z, Bit.Z);\r
 286                 Simulation.TIMELINE.executeAll();\r
 287                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
 288 \r
 289                 wI2.feedSignals(Bit.ONE, Bit.Z);\r
 290                 w.addObserver((i, oldValues) -> fail("WireArray notified observer, although value did not change."));\r
 291                 Simulation.TIMELINE.executeAll();\r
 292                 assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
 293         }\r
 294 \r
 295 //      @Test\r
 296         void wireConnections()\r
 297         {\r
 298                 // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde\r
 299 \r
 300                 Simulation.TIMELINE.reset();\r
 301 \r
 302                 WireArray a = new WireArray(1, 2);\r
 303                 WireArray b = new WireArray(1, 2);\r
 304                 WireArray c = new WireArray(1, 2);\r
 305                 WireArrayEnd aI = a.createInput();\r
 306                 WireArrayEnd bI = b.createInput();\r
 307                 WireArrayEnd cI = c.createInput();\r
 308 \r
 309                 TestBitDisplay test = new TestBitDisplay(c);\r
 310                 TestBitDisplay test2 = new TestBitDisplay(a);\r
 311                 LongConsumer print = time -> System.out.format("Time %2d\n   a: %s\n   b: %s\n   c: %s\n", time, a, b, c);\r
 312 \r
 313                 cI.feedSignals(Bit.ONE);\r
 314                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 315 \r
 316                 cI.feedSignals(Bit.X);\r
 317                 test.assertAfterSimulationIs(print, Bit.X);\r
 318 \r
 319                 cI.feedSignals(Bit.X);\r
 320                 cI.feedSignals(Bit.Z);\r
 321                 test.assertAfterSimulationIs(print, Bit.Z);\r
 322 \r
 323                 new Connector(b, c);\r
 324                 test.assertAfterSimulationIs(print, Bit.Z);\r
 325                 System.err.println("ONE");\r
 326                 bI.feedSignals(Bit.ONE);\r
 327                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 328                 System.err.println("ZERO");\r
 329                 bI.feedSignals(Bit.ZERO);\r
 330                 test.assertAfterSimulationIs(print, Bit.ZERO);\r
 331                 System.err.println("Z");\r
 332                 bI.feedSignals(Bit.Z);\r
 333                 test.assertAfterSimulationIs(print, Bit.Z);\r
 334 \r
 335                 new Connector(a, b);\r
 336                 System.err.println("Z 2");\r
 337                 aI.feedSignals(Bit.Z);\r
 338                 test.assertAfterSimulationIs(print, Bit.Z);\r
 339                 test2.assertAfterSimulationIs(Bit.Z);\r
 340                 System.err.println("ONE 2");\r
 341                 aI.feedSignals(Bit.ONE);\r
 342                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 343                 test2.assertAfterSimulationIs(Bit.ONE);\r
 344                 System.err.println("ZERO 2");\r
 345                 aI.feedSignals(Bit.ZERO);\r
 346                 test.assertAfterSimulationIs(print, Bit.ZERO);\r
 347                 test2.assertAfterSimulationIs(Bit.ZERO);\r
 348                 System.err.println("Z 2 II");\r
 349                 aI.feedSignals(Bit.Z);\r
 350                 test.assertAfterSimulationIs(print, Bit.Z);\r
 351                 test2.assertAfterSimulationIs(Bit.Z);\r
 352 \r
 353                 System.err.println("No Conflict yet");\r
 354                 bI.feedSignals(Bit.ONE);\r
 355                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 356                 test2.assertAfterSimulationIs(Bit.ONE);\r
 357                 aI.feedSignals(Bit.ONE);\r
 358                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 359                 test2.assertAfterSimulationIs(Bit.ONE);\r
 360                 System.err.println("Conflict");\r
 361                 aI.feedSignals(Bit.ZERO);\r
 362                 test.assertAfterSimulationIs(print, Bit.X);\r
 363                 test2.assertAfterSimulationIs(Bit.X);\r
 364                 aI.feedSignals(Bit.ONE);\r
 365                 test.assertAfterSimulationIs(print, Bit.ONE);\r
 366                 test2.assertAfterSimulationIs(Bit.ONE);\r
 367         }\r
 368 \r
 369         private static void assertBitArrayEquals(Bit[] actual, Bit... expected)\r
 370         {\r
 371                 assertArrayEquals(expected, actual);\r
 372         }\r
 373 }\r