+++ /dev/null
-package net.mograsim.logic.core.tests;
-
-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 org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Disabled;
-import org.junit.jupiter.api.Test;
-
-import net.mograsim.logic.core.components.Demux;
-import net.mograsim.logic.core.components.Mux;
-import net.mograsim.logic.core.components.TriStateBuffer;
-import net.mograsim.logic.core.components.UnidirectionalMerger;
-import net.mograsim.logic.core.components.UnidirectionalSplitter;
-import net.mograsim.logic.core.components.gates.AndGate;
-import net.mograsim.logic.core.components.gates.NandGate;
-import net.mograsim.logic.core.components.gates.NorGate;
-import net.mograsim.logic.core.components.gates.NotGate;
-import net.mograsim.logic.core.components.gates.OrGate;
-import net.mograsim.logic.core.components.gates.XorGate;
-import net.mograsim.logic.core.timeline.Timeline;
-import net.mograsim.logic.core.types.Bit;
-import net.mograsim.logic.core.types.BitVector;
-import net.mograsim.logic.core.wires.Wire;
-import net.mograsim.logic.core.wires.Wire.ReadEnd;
-import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
-
-@SuppressWarnings("unused")
-class ComponentTest
-{
- private Timeline t = new Timeline(11);
-
- @BeforeEach
- void resetTimeline()
- {
- t.reset();
- }
-
- @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 UnidirectionalMerger(t, h.createReadWriteEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());
- new Mux(t, 1, i.createReadWriteEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());
- new UnidirectionalSplitter(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()
- {
- 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 UnidirectionalSplitter(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()
- {
- 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 UnidirectionalMerger(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 fusionTest1()
- {
- 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);
- Wire.fuse(a, out, 0, 0, a.width);
- Wire.fuse(b, out, 0, a.width, b.width);
- Wire.fuse(c, out, 0, a.width + b.width, c.width);
- ReadWriteEnd rA = a.createReadWriteEnd();
- rA.feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);
- ReadWriteEnd rB = b.createReadWriteEnd();
- rB.feedSignals(Bit.ONE, Bit.ZERO);
- ReadWriteEnd rC = c.createReadWriteEnd();
- rC.feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
-
- t.executeAll();
- assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
- out.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
- t.executeAll();
- assertBitArrayEquals(rA.getValues(), Bit.X, Bit.X, Bit.X);
- assertBitArrayEquals(rB.getValues(), Bit.X, Bit.X);
- assertBitArrayEquals(rC.getValues(), Bit.X, Bit.X, Bit.X);
- rA.clearSignals();
- rB.clearSignals();
- rC.clearSignals();
- t.executeAll();
- assertBitArrayEquals(rA.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);
- assertBitArrayEquals(rB.getValues(), Bit.ZERO, Bit.ONE);
- assertBitArrayEquals(rC.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);
- }
-
- @Test
- void fusionTest2()
- {
- Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 1);
- Wire.fuse(a, b);
- ReadWriteEnd rw = a.createReadWriteEnd();
- t.executeAll();
- assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U);
-
- rw.feedSignals(Bit.ONE, Bit.U, Bit.Z);
- t.executeAll();
- assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.U, Bit.Z);
- }
-
- @Test
- void fusionTest3()
- {
- Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 1);
- a.createReadWriteEnd().feedSignals(Bit.Z, Bit.U, Bit.X);
- t.executeAll();
- Wire.fuse(a, b);
- t.executeAll();
- assertBitArrayEquals(b.getValues(), Bit.Z, Bit.U, Bit.X);
- }
-
- @Test
- void fusionTest4()
- {
- Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 1);
- a.createReadWriteEnd();
- t.executeAll();
-
- Wire.fuse(a, b);
- t.executeAll();
- assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U);
- }
-
-// @Test
-// void connectorTest()
-// {
-// t.reset();
-// Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 1);
-// new Connector(t, a.createReadWriteEnd(), b.createReadWriteEnd()).connect();
-//// b.createReadWriteEnd();
-// a.createReadWriteEnd();
-// t.executeAll();
-// assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U);
-// }
-
- @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()
- {
- 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()
- {
- 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()
- {
- 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()
- {
- 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 nandTest()
- {
- 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);
- new NandGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
- c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-
- t.executeAll();
-
- assertBitArrayEquals(d.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ONE);
- }
-
- @Test
- void norTest()
- {
- 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);
- new NorGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
- a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
- b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
- c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-
- t.executeAll();
-
- assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ZERO, Bit.ONE, Bit.ZERO);
- }
-
- @Test
- void xorTest()
- {
- 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()
- {
- 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()
- {
- 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()
- {
- 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("Events executed out of order!");
- flag = false;
- }, 15);
- t.addEvent((e) ->
- {
- if (flag)
- fail("Events executed out of order!");
- flag = true;
- }, 10);
- t.addEvent((e) ->
- {
- if (flag)
- fail("Events executed out of order!");
- 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("Not all events were executed in order!");
- }
-
- // TODO: Adapt this test, now that update notifications are issued whenever any input to a wire changes
- @Disabled("Out of date")
- @Test
- void multipleInputs()
- {
- 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.registerObserver((i) -> fail("WireEnd notified observer, although value did not change."));
- t.executeAll();
- rE.close();
- wI1.feedSignals(Bit.X, Bit.X);
- t.executeAll();
- wI1.registerObserver((i) -> fail("WireEnd notified observer, although it was closed."));
- wI1.close();
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
- }
-
- private static void assertBitArrayEquals(BitVector actual, Bit... expected)
- {
- assertArrayEquals(expected, actual.getBits());
- }
-}
projects / Mograsim.git / blobdiff