+++ /dev/null
-package era.mi.logic.tests;
-
-import static org.junit.Assert.assertTrue;
-import static org.junit.jupiter.api.Assertions.assertArrayEquals;
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.fail;
-
-import java.util.function.LongConsumer;
-
-import org.junit.jupiter.api.Test;
-
-import era.mi.logic.components.Connector;
-import era.mi.logic.components.Demux;
-import era.mi.logic.components.Merger;
-import era.mi.logic.components.Mux;
-import era.mi.logic.components.Splitter;
-import era.mi.logic.components.TriStateBuffer;
-import era.mi.logic.components.gates.AndGate;
-import era.mi.logic.components.gates.NotGate;
-import era.mi.logic.components.gates.OrGate;
-import era.mi.logic.components.gates.XorGate;
-import era.mi.logic.timeline.Timeline;
-import era.mi.logic.types.Bit;
-import era.mi.logic.types.BitVector;
-import era.mi.logic.wires.Wire;
-import era.mi.logic.wires.Wire.ReadEnd;
-import era.mi.logic.wires.Wire.ReadWriteEnd;
-
-class ComponentTest
-{
- private Timeline t = new Timeline(11);
-
- @Test
- void circuitExampleTest()
- {
- 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),
- 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),
- k = new Wire(t, 1, 1);
- new AndGate(t, 1, f.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
- new NotGate(t, 1, f.createReadOnlyEnd(), g.createReadWriteEnd());
- new Merger(t, h.createReadWriteEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());
- new Mux(t, 1, i.createReadWriteEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());
- new Splitter(t, i.createReadOnlyEnd(), k.createReadWriteEnd(), j.createReadWriteEnd());
-
- a.createReadWriteEnd().feedSignals(Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ONE);
- c.createReadWriteEnd().feedSignals(Bit.ZERO);
- d.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE);
- e.createReadWriteEnd().feedSignals(Bit.ZERO);
-
- t.executeAll();
-
- assertEquals(Bit.ONE, j.getValue());
- assertEquals(Bit.ZERO, k.getValue());
- }
-
- @Test
- void splitterTest()
- {
- t.reset();
- 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);
- in.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
- new Splitter(t, in.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(), c.createReadWriteEnd());
-
- t.executeAll();
-
- assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);
- assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);
- assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);
- }
-
- @Test
- void mergerTest()
- {
- t.reset();
- 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);
- a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO);
- c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
-
- new Merger(t, out.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
-
- t.executeAll();
-
- assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
- }
-
- @Test
- void triStateBufferTest()
- {
- 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);
- new NotGate(t, 1, en.createReadOnlyEnd(), notEn.createReadWriteEnd());
- new TriStateBuffer(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd(), en.createReadOnlyEnd());
- new TriStateBuffer(t, 1, b.createReadOnlyEnd(), a.createReadWriteEnd(), notEn.createReadOnlyEnd());
-
- ReadWriteEnd enI = en.createReadWriteEnd(), aI = a.createReadWriteEnd(), bI = b.createReadWriteEnd();
- enI.feedSignals(Bit.ONE);
- aI.feedSignals(Bit.ONE);
- bI.feedSignals(Bit.Z);
-
- t.executeAll();
-
- assertEquals(Bit.ONE, b.getValue());
-
- bI.feedSignals(Bit.ZERO);
-
- t.executeAll();
-
- assertEquals(Bit.X, b.getValue());
- assertEquals(Bit.ONE, a.getValue());
-
- aI.clearSignals();
- enI.feedSignals(Bit.ZERO);
-
- t.executeAll();
-
- assertEquals(Bit.ZERO, a.getValue());
-
- }
-
- @Test
- void muxTest()
- {
- t.reset();
- 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);
- ReadWriteEnd selectIn = select.createReadWriteEnd();
-
- selectIn.feedSignals(Bit.ZERO, Bit.ZERO);
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
- c.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-
- new Mux(t, 1, out.createReadWriteEnd(), select.createReadOnlyEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(),
- c.createReadOnlyEnd());
- t.executeAll();
-
- assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
- selectIn.feedSignals(Bit.ZERO, Bit.ONE);
- t.executeAll();
-
- assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-
- selectIn.feedSignals(Bit.ONE, Bit.ONE);
- t.executeAll();
-
- assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
-
- }
-
- @Test
- void demuxTest()
- {
- t.reset();
- 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);
- ReadWriteEnd selectIn = select.createReadWriteEnd();
-
- selectIn.feedSignals(Bit.ZERO, Bit.ZERO);
- in.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
-
- new Demux(t, 1, in.createReadOnlyEnd(), select.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(),
- c.createReadWriteEnd());
- t.executeAll();
-
- assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
- assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
- assertBitArrayEquals(c.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
- selectIn.feedSignals(Bit.ZERO, Bit.ONE);
- t.executeAll();
-
- assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
- assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
- assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
-
- selectIn.feedSignals(Bit.ONE, Bit.ONE);
- t.executeAll();
-
- assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
- assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
- assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
-
- }
-
- @Test
- void andTest()
- {
- t.reset();
- Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);
- new AndGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-
- t.executeAll();
-
- assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);
- }
-
- @Test
- void orTest()
- {
- t.reset();
- Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);
- new OrGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-
- t.executeAll();
-
- assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);
- }
-
- @Test
- void xorTest()
- {
- t.reset();
- 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);
- new XorGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
- a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
- b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
- c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
-
- t.executeAll();
-
- assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);
- }
-
- @Test
- void notTest()
- {
- t.reset();
- Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 2);
- new NotGate(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd());
- a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
-
- t.executeAll();
-
- assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO, Bit.ZERO);
- }
-
- @Test
- void rsLatchCircuitTest()
- {
- t.reset();
- 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),
- nq = new Wire(t, 1, 1);
-
- new OrGate(t, 1, t2.createReadWriteEnd(), r.createReadOnlyEnd(), nq.createReadOnlyEnd());
- new OrGate(t, 1, t1.createReadWriteEnd(), s.createReadOnlyEnd(), q.createReadOnlyEnd());
- new NotGate(t, 1, t2.createReadOnlyEnd(), q.createReadWriteEnd());
- new NotGate(t, 1, t1.createReadOnlyEnd(), nq.createReadWriteEnd());
-
- ReadWriteEnd sIn = s.createReadWriteEnd(), rIn = r.createReadWriteEnd();
-
- sIn.feedSignals(Bit.ONE);
- rIn.feedSignals(Bit.ZERO);
-
- t.executeAll();
-
- assertEquals(Bit.ONE, q.getValue());
- assertEquals(Bit.ZERO, nq.getValue());
-
- sIn.feedSignals(Bit.ZERO);
-
- t.executeAll();
- assertEquals(Bit.ONE, q.getValue());
- assertEquals(Bit.ZERO, nq.getValue());
-
- rIn.feedSignals(Bit.ONE);
-
- t.executeAll();
-
- assertEquals(Bit.ZERO, q.getValue());
- assertEquals(Bit.ONE, nq.getValue());
- }
-
- @Test
- void numericValueTest()
- {
- t.reset();
-
- Wire a = new Wire(t, 4, 1);
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);
-
- t.executeAll();
-
- assertEquals(15, a.getUnsignedValue());
- assertEquals(-1, a.getSignedValue());
- }
-
- boolean flag = false;
-
- @Test
- void simpleTimelineTest()
- {
- Timeline t = new Timeline(3);
- flag = false;
- t.addEvent((e) ->
- {
- if (!flag)
- fail();
- flag = false;
- }, 15);
- t.addEvent((e) ->
- {
- if (flag)
- fail();
- flag = true;
- }, 10);
- t.addEvent((e) ->
- {
- if (flag)
- fail();
- flag = true;
- }, 20);
- t.addEvent((e) ->
- {
- fail("Only supposed to execute until timestamp 20, not 25");
- }, 25);
-
- t.executeUntil(t.laterThan(20), 100);
-
- if (!flag)
- fail();
- }
-
- @Test
- void multipleInputs()
- {
- t.reset();
- Wire w = new Wire(t, 2, 1);
- ReadWriteEnd wI1 = w.createReadWriteEnd(), wI2 = w.createReadWriteEnd();
- wI1.feedSignals(Bit.ONE, Bit.Z);
- wI2.feedSignals(Bit.Z, Bit.X);
- t.executeAll();
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);
-
- wI2.feedSignals(Bit.ZERO, Bit.Z);
- t.executeAll();
- assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);
-
- wI2.feedSignals(Bit.Z, Bit.Z);
- t.executeAll();
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
-
- wI2.feedSignals(Bit.ONE, Bit.Z);
- ReadEnd rE = w.createReadOnlyEnd();
- rE.addObserver((i, oldValues) -> fail("WireEnd notified observer, although value did not change."));
- t.executeAll();
- rE.close();
- wI1.feedSignals(Bit.X, Bit.X);
- t.executeAll();
- wI1.addObserver((i, oldValues) -> fail("WireEnd notified observer, although it was closed."));
- wI1.close();
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
- }
-
- @Test
- void wireConnections()
- {
- // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde
-
- t.reset();
-
- Wire a = new Wire(t, 1, 2);
- Wire b = new Wire(t, 1, 2);
- Wire c = new Wire(t, 1, 2);
- ReadWriteEnd aI = a.createReadWriteEnd();
- ReadWriteEnd bI = b.createReadWriteEnd();
- ReadWriteEnd cI = c.createReadWriteEnd();
-
- TestBitDisplay test = new TestBitDisplay(t, c.createReadOnlyEnd());
- TestBitDisplay test2 = new TestBitDisplay(t, a.createReadOnlyEnd());
- LongConsumer print = time -> System.out.format("Time %2d\n a: %s\n b: %s\n c: %s\n", time, a, b, c);
-
- cI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
-
- cI.feedSignals(Bit.X);
- test.assertAfterSimulationIs(print, Bit.X);
-
- cI.feedSignals(Bit.X);
- cI.feedSignals(Bit.Z);
- test.assertAfterSimulationIs(print, Bit.Z);
-
- new Connector(t, b.createReadWriteEnd(), c.createReadWriteEnd()).connect();
- test.assertAfterSimulationIs(print, Bit.Z);
- System.err.println("ONE");
- bI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
- System.err.println("ZERO");
- bI.feedSignals(Bit.ZERO);
- test.assertAfterSimulationIs(print, Bit.ZERO);
- System.err.println("Z");
- bI.feedSignals(Bit.Z);
- test.assertAfterSimulationIs(print, Bit.Z);
-
- new Connector(t, a.createReadWriteEnd(), b.createReadWriteEnd()).connect();
- System.err.println("Z 2");
- aI.feedSignals(Bit.Z);
- test.assertAfterSimulationIs(print, Bit.Z);
- test2.assertAfterSimulationIs(Bit.Z);
- System.err.println("ONE 2");
- aI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
- test2.assertAfterSimulationIs(Bit.ONE);
- System.err.println("ZERO 2");
- aI.feedSignals(Bit.ZERO);
- test.assertAfterSimulationIs(print, Bit.ZERO);
- test2.assertAfterSimulationIs(Bit.ZERO);
- System.err.println("Z 2 II");
- aI.feedSignals(Bit.Z);
- test.assertAfterSimulationIs(print, Bit.Z);
- test2.assertAfterSimulationIs(Bit.Z);
-
- System.err.println("No Conflict yet");
- bI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
- test2.assertAfterSimulationIs(Bit.ONE);
- aI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
- test2.assertAfterSimulationIs(Bit.ONE);
- System.err.println("Conflict");
- aI.feedSignals(Bit.ZERO);
- test.assertAfterSimulationIs(print, Bit.X);
- test2.assertAfterSimulationIs(Bit.X);
- aI.feedSignals(Bit.ONE);
- test.assertAfterSimulationIs(print, Bit.ONE);
- test2.assertAfterSimulationIs(Bit.ONE);
- }
-
- private static void assertBitArrayEquals(BitVector actual, Bit... expected)
- {
- assertArrayEquals(expected, actual.getBits());
- }
-}
projects / Mograsim.git / blobdiff