Suppressed warnings where the thing warned about is intentional
[Mograsim.git] / era.mi / src / era / mi / logic / tests / ComponentTest.java
index 8a9bc5a..0e2b346 100644 (file)
@@ -1,12 +1,14 @@
 package era.mi.logic.tests;
 
-import static org.junit.jupiter.api.Assertions.*;
+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.Simulation;
 import era.mi.logic.components.Connector;
 import era.mi.logic.components.Demux;
 import era.mi.logic.components.Merger;
@@ -17,34 +19,36 @@ 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.WireEnd;
+import era.mi.logic.wires.Wire.ReadEnd;
+import era.mi.logic.wires.Wire.ReadWriteEnd;
 
-@SuppressWarnings("unused")
 class ComponentTest
 {
+       private Timeline t = new Timeline(11);
 
        @Test
        void circuitExampleTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(1, 1), b = new Wire(1, 1), c = new Wire(1, 10), d = new Wire(2, 1), e = new Wire(1, 1), f = new Wire(1, 1),
-                               g = new Wire(1, 1), h = new Wire(2, 1), i = new Wire(2, 1), j = new Wire(1, 1), k = new Wire(1, 1);
-               new AndGate(1, f.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
-               new NotGate(1, f.createReadOnlyEnd(), g.createEnd());
-               new Merger(h.createEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());
-               new Mux(1, i.createEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());
-               new Splitter(i.createReadOnlyEnd(), k.createEnd(), j.createEnd());
-
-               a.createEnd().feedSignals(Bit.ZERO);
-               b.createEnd().feedSignals(Bit.ONE);
-               c.createEnd().feedSignals(Bit.ZERO);
-               d.createEnd().feedSignals(Bit.ONE, Bit.ONE);
-               e.createEnd().feedSignals(Bit.ZERO);
-
-               Simulation.TIMELINE.executeAll();
+               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());
@@ -53,12 +57,12 @@ class ComponentTest
        @Test
        void splitterTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(3, 1), b = new Wire(2, 1), c = new Wire(3, 1), in = new Wire(8, 1);
-               in.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-               new Splitter(in.createReadOnlyEnd(), a.createEnd(), b.createEnd(), c.createEnd());
+               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());
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);
                assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);
@@ -68,15 +72,15 @@ class ComponentTest
        @Test
        void mergerTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(3, 1), b = new Wire(2, 1), c = new Wire(3, 1), out = new Wire(8, 1);
-               a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);
-               b.createEnd().feedSignals(Bit.ONE, Bit.ZERO);
-               c.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
+               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(out.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
+               new Merger(t, out.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
        }
@@ -84,23 +88,23 @@ class ComponentTest
        @Test
        void triStateBufferTest()
        {
-               Wire a = new Wire(1, 1), b = new Wire(1, 1), en = new Wire(1, 1), notEn = new Wire(1, 1);
-               new NotGate(1, en.createReadOnlyEnd(), notEn.createEnd());
-               new TriStateBuffer(1, a.createReadOnlyEnd(), b.createEnd(), en.createReadOnlyEnd());
-               new TriStateBuffer(1, b.createReadOnlyEnd(), a.createEnd(), notEn.createReadOnlyEnd());
+               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());
 
-               WireEnd enI = en.createEnd(), aI = a.createEnd(), bI = b.createEnd();
+               ReadWriteEnd enI = en.createReadWriteEnd(), aI = a.createReadWriteEnd(), bI = b.createReadWriteEnd();
                enI.feedSignals(Bit.ONE);
                aI.feedSignals(Bit.ONE);
                bI.feedSignals(Bit.Z);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertEquals(Bit.ONE, b.getValue());
 
                bI.feedSignals(Bit.ZERO);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertEquals(Bit.X, b.getValue());
                assertEquals(Bit.ONE, a.getValue());
@@ -108,7 +112,7 @@ class ComponentTest
                aI.clearSignals();
                enI.feedSignals(Bit.ZERO);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertEquals(Bit.ZERO, a.getValue());
 
@@ -117,25 +121,26 @@ class ComponentTest
        @Test
        void muxTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(4, 3), b = new Wire(4, 6), c = new Wire(4, 4), select = new Wire(2, 5), out = new Wire(4, 1);
-               WireEnd selectIn = select.createEnd();
+               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.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
-               c.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+               c.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
 
-               new Mux(1, out.createEnd(), select.createReadOnlyEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
-               Simulation.TIMELINE.executeAll();
+               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);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
 
                selectIn.feedSignals(Bit.ONE, Bit.ONE);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
 
@@ -144,28 +149,29 @@ class ComponentTest
        @Test
        void demuxTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(4, 3), b = new Wire(4, 6), c = new Wire(4, 4), select = new Wire(2, 5), in = new Wire(4, 1);
-               WireEnd selectIn = select.createEnd();
+               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.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+               in.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
 
-               new Demux(1, in.createReadOnlyEnd(), select.createReadOnlyEnd(), a.createEnd(), b.createEnd(), c.createEnd());
-               Simulation.TIMELINE.executeAll();
+               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);
-               Simulation.TIMELINE.executeAll();
+               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);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
                assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
@@ -176,13 +182,13 @@ class ComponentTest
        @Test
        void andTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(4, 1), b = new Wire(4, 3), c = new Wire(4, 1);
-               new AndGate(1, c.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
-               a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-               b.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+               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);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);
        }
@@ -190,13 +196,13 @@ class ComponentTest
        @Test
        void orTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(4, 1), b = new Wire(4, 3), c = new Wire(4, 1);
-               new OrGate(1, c.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
-               a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-               b.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+               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);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);
        }
@@ -204,14 +210,14 @@ class ComponentTest
        @Test
        void xorTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(3, 1), b = new Wire(3, 2), c = new Wire(3, 1), d = new Wire(3, 1);
-               new XorGate(1, d.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
-               a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
-               b.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
-               c.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
+               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);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);
        }
@@ -219,12 +225,12 @@ class ComponentTest
        @Test
        void notTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire a = new Wire(3, 1), b = new Wire(3, 2);
-               new NotGate(1, a.createReadOnlyEnd(), b.createEnd());
-               a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
+               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);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO, Bit.ZERO);
        }
@@ -232,33 +238,34 @@ class ComponentTest
        @Test
        void rsLatchCircuitTest()
        {
-               Simulation.TIMELINE.reset();
-               Wire r = new Wire(1, 1), s = new Wire(1, 1), t1 = new Wire(1, 15), t2 = new Wire(1, 1), q = new Wire(1, 1), nq = new Wire(1, 1);
+               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(1, t2.createEnd(), r.createReadOnlyEnd(), nq.createReadOnlyEnd());
-               new OrGate(1, t1.createEnd(), s.createReadOnlyEnd(), q.createReadOnlyEnd());
-               new NotGate(1, t2.createReadOnlyEnd(), q.createEnd());
-               new NotGate(1, t1.createReadOnlyEnd(), nq.createEnd());
+               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());
 
-               WireEnd sIn = s.createEnd(), rIn = r.createEnd();
+               ReadWriteEnd sIn = s.createReadWriteEnd(), rIn = r.createReadWriteEnd();
 
                sIn.feedSignals(Bit.ONE);
                rIn.feedSignals(Bit.ZERO);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertEquals(Bit.ONE, q.getValue());
                assertEquals(Bit.ZERO, nq.getValue());
 
                sIn.feedSignals(Bit.ZERO);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
                assertEquals(Bit.ONE, q.getValue());
                assertEquals(Bit.ZERO, nq.getValue());
 
                rIn.feedSignals(Bit.ONE);
 
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
 
                assertEquals(Bit.ZERO, q.getValue());
                assertEquals(Bit.ONE, nq.getValue());
@@ -267,39 +274,81 @@ class ComponentTest
        @Test
        void numericValueTest()
        {
-               Simulation.TIMELINE.reset();
+               t.reset();
 
-               Wire a = new Wire(4, 1);
-               a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);
+               Wire a = new Wire(t, 4, 1);
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);
 
-               Simulation.TIMELINE.executeAll();
+               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()
        {
-               Simulation.TIMELINE.reset();
-               Wire w = new Wire(2, 1);
-               WireEnd wI1 = w.createEnd(), wI2 = w.createEnd();
+               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);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
                assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);
 
                wI2.feedSignals(Bit.ZERO, Bit.Z);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
                assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);
 
                wI2.feedSignals(Bit.Z, Bit.Z);
-               Simulation.TIMELINE.executeAll();
+               t.executeAll();
                assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
 
                wI2.feedSignals(Bit.ONE, Bit.Z);
-               w.addObserver((i, oldValues) -> fail("WireArray notified observer, although value did not change."));
-               Simulation.TIMELINE.executeAll();
+               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);
        }
 
@@ -308,17 +357,17 @@ class ComponentTest
        {
                // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde
 
-               Simulation.TIMELINE.reset();
+               t.reset();
 
-               Wire a = new Wire(1, 2);
-               Wire b = new Wire(1, 2);
-               Wire c = new Wire(1, 2);
-               WireEnd aI = a.createEnd();
-               WireEnd bI = b.createEnd();
-               WireEnd cI = c.createEnd();
+               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(c.createReadOnlyEnd());
-               TestBitDisplay test2 = new TestBitDisplay(a.createReadOnlyEnd());
+               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);
@@ -331,7 +380,7 @@ class ComponentTest
                cI.feedSignals(Bit.Z);
                test.assertAfterSimulationIs(print, Bit.Z);
 
-               new Connector(b.createEnd(), c.createEnd()).connect();
+               new Connector(t, b.createReadWriteEnd(), c.createReadWriteEnd()).connect();
                test.assertAfterSimulationIs(print, Bit.Z);
                System.err.println("ONE");
                bI.feedSignals(Bit.ONE);
@@ -343,7 +392,7 @@ class ComponentTest
                bI.feedSignals(Bit.Z);
                test.assertAfterSimulationIs(print, Bit.Z);
 
-               new Connector(a.createEnd(), b.createEnd()).connect();
+               new Connector(t, a.createReadWriteEnd(), b.createReadWriteEnd()).connect();
                System.err.println("Z 2");
                aI.feedSignals(Bit.Z);
                test.assertAfterSimulationIs(print, Bit.Z);