Timeline now passed via constructor
[Mograsim.git] / era.mi / src / era / mi / logic / tests / ComponentTest.java
index f5ec68c..831349d 100644 (file)
-package era.mi.logic.tests;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-import java.util.Arrays;
-
-import org.junit.jupiter.api.Test;
-
-import era.mi.logic.Bit;
-import era.mi.logic.Simulation;
-import era.mi.logic.WireArray;
-import era.mi.logic.components.Merger2;
-import era.mi.logic.components.Mux;
-import era.mi.logic.components.Splitter;
-import era.mi.logic.components.gates.AndGate;
-import era.mi.logic.components.gates.NotGate;
-import era.mi.logic.components.gates.OrGate;
-
-class ComponentTest
-{
-
-       @Test
-       void circuitExampleTest()
-       {
-               Simulation.TIMELINE.reset();
-               WireArray a = new WireArray(1, 1), b = new WireArray(1, 1), c = new WireArray(1, 10), d = new WireArray(2, 1), 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), j = new WireArray(1, 1), k = new WireArray(1, 1);
-               new AndGate(1, a, b, f);
-               new NotGate(1, f, g);
-               new Merger2(h, c, g);
-               new Mux(1, h, d, e, i);
-               new Splitter(i, k, j);
-               
-               a.feedSignals(Bit.ZERO);
-               b.feedSignals(Bit.ONE);
-               c.feedSignals(Bit.ZERO);
-               d.feedSignals(Bit.ONE, Bit.ONE);
-               e.feedSignals(Bit.ONE);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(Simulation.TIMELINE.getSimulationTime(), 14);
-               assertEquals(Bit.ONE, j.getValue());
-               assertEquals(Bit.ZERO, k.getValue());
-       }
-
-       @Test
-       void splitterTest()
-       {
-               Simulation.TIMELINE.reset();
-               WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), in = new WireArray(8, 1);
-               in.feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO,Bit.ONE, Bit.ZERO, Bit.ONE);
-               new Splitter(in, a, b, c);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertTrue(Arrays.equals(a.getValues(), new Bit[] { Bit.ZERO, Bit.ONE, Bit.ZERO }));
-               assertTrue(Arrays.equals(b.getValues(), new Bit[] { Bit.ONE, Bit.ZERO }));
-               assertTrue(Arrays.equals(c.getValues(), new Bit[] { Bit.ONE, Bit.ZERO, Bit.ONE }));
-       }
-       
-       @Test
-       void mergerTest()
-       {
-               Simulation.TIMELINE.reset();
-               WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), out = new WireArray(8, 1);
-               a.feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);
-               b.feedSignals(Bit.ONE, Bit.ZERO);
-               c.feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
-               
-               new Merger2(out, a, b, c);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertTrue(Arrays.equals(out.getValues(), new Bit[] { Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE }));
-       }
-       
-       @Test
-       void muxTest()
-       {
-               Simulation.TIMELINE.reset();
-               WireArray a = new WireArray(1, 1), b = new WireArray(1, 1), select = new WireArray(1, 1), out = new WireArray(1, 1);
-               
-               select.feedSignals(Bit.ONE);
-               a.feedSignals(Bit.ONE);
-               b.feedSignals(Bit.ZERO);
-               
-               new Mux(1, a, b, select, out);
-               assertEquals(out.getValue(), Bit.X);
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-
-               assertEquals(out.getValue(), Bit.ONE);
-               select.feedSignals(Bit.ZERO);
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(out.getValue(), Bit.ZERO);
-       }
-       
-       @Test
-       void andTest()
-       {
-               Simulation.TIMELINE.reset();
-               AndGate gate = new AndGate(1, new WireArray(4, 1), new WireArray(4, 1), new WireArray(4, 1));
-               gate.getA().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-               gate.getB().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-               
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               assertTrue(Arrays.equals(gate.getOut().getValues(), new Bit[] { Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO }));
-       }
-       
-       @Test
-       void orTest()
-       {
-               Simulation.TIMELINE.reset();
-               OrGate gate = new OrGate(1, new WireArray(4, 1), new WireArray(4, 1), new WireArray(4, 1));
-               gate.getA().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
-               gate.getB().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
-               
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               assertTrue(Arrays.equals(gate.getOut().getValues(), new Bit[] { Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE }));
-       }
-       
-       @Test
-       void rsLatchCircuitTest()
-       {
-               Simulation.TIMELINE.reset();
-               WireArray r = new WireArray(1, 1), s = new WireArray(1, 1), t1 = new WireArray(1, 15), t2 = new WireArray(1, 1), q = new WireArray(1, 1),
-                               nq = new WireArray(1, 1);
-               
-               new OrGate(1, r, nq, t2);
-               new OrGate(1, s, q, t1);
-               new NotGate(1, t2, q);
-               new NotGate(1, t1, nq);
-       
-               s.feedSignals(Bit.ONE);
-               r.feedSignals(Bit.ZERO);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(q.getValue(), Bit.ONE);
-               assertEquals(nq.getValue(), Bit.ZERO);
-               
-               s.feedSignals(Bit.ZERO);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(q.getValue(), Bit.ONE);
-               assertEquals(nq.getValue(), Bit.ZERO);
-               
-               r.feedSignals(Bit.ONE);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(q.getValue(), Bit.ZERO);
-               assertEquals(nq.getValue(), Bit.ONE);
-       }
-       
-       @Test
-       void numericValueTest()
-       {
-               Simulation.TIMELINE.reset();
-               
-               WireArray a = new WireArray(4, 1);
-               a.feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);
-               
-               while(Simulation.TIMELINE.hasNext())
-               {
-                       Simulation.TIMELINE.executeNext();
-               }
-               
-               assertEquals(a.getUnsignedValue(), 15);
-               assertEquals(a.getSignedValue(), -1);
-       }
-}
+package era.mi.logic.tests;\r
+\r
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;\r
+import static org.junit.jupiter.api.Assertions.assertEquals;\r
+import static org.junit.jupiter.api.Assertions.fail;\r
+\r
+import java.util.function.LongConsumer;\r
+\r
+import org.junit.jupiter.api.Test;\r
+\r
+import era.mi.logic.components.Connector;\r
+import era.mi.logic.components.Demux;\r
+import era.mi.logic.components.Merger;\r
+import era.mi.logic.components.Mux;\r
+import era.mi.logic.components.Splitter;\r
+import era.mi.logic.components.TriStateBuffer;\r
+import era.mi.logic.components.gates.AndGate;\r
+import era.mi.logic.components.gates.NotGate;\r
+import era.mi.logic.components.gates.OrGate;\r
+import era.mi.logic.components.gates.XorGate;\r
+import era.mi.logic.timeline.Timeline;\r
+import era.mi.logic.types.Bit;\r
+import era.mi.logic.types.BitVector;\r
+import era.mi.logic.wires.Wire;\r
+import era.mi.logic.wires.Wire.ReadEnd;\r
+import era.mi.logic.wires.Wire.ReadWriteEnd;\r
+\r
+class ComponentTest\r
+{\r
+       private Timeline t = new Timeline(11);\r
+\r
+       @Test\r
+       void circuitExampleTest()\r
+       {\r
+               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
+                               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
+                               k = new Wire(t, 1, 1);\r
+               new AndGate(t, 1, f.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
+               new NotGate(t, 1, f.createReadOnlyEnd(), g.createReadWriteEnd());\r
+               new Merger(t, h.createReadWriteEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());\r
+               new Mux(t, 1, i.createReadWriteEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());\r
+               new Splitter(t, i.createReadOnlyEnd(), k.createReadWriteEnd(), j.createReadWriteEnd());\r
+\r
+               a.createReadWriteEnd().feedSignals(Bit.ZERO);\r
+               b.createReadWriteEnd().feedSignals(Bit.ONE);\r
+               c.createReadWriteEnd().feedSignals(Bit.ZERO);\r
+               d.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE);\r
+               e.createReadWriteEnd().feedSignals(Bit.ZERO);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.ONE, j.getValue());\r
+               assertEquals(Bit.ZERO, k.getValue());\r
+       }\r
+\r
+       @Test\r
+       void splitterTest()\r
+       {\r
+               t.reset();\r
+               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
+               in.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+               new Splitter(t, in.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(), c.createReadWriteEnd());\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+               assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);\r
+               assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);\r
+       }\r
+\r
+       @Test\r
+       void mergerTest()\r
+       {\r
+               t.reset();\r
+               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
+               a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+               b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO);\r
+               c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               new Merger(t, out.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+       }\r
+\r
+       @Test\r
+       void triStateBufferTest()\r
+       {\r
+               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
+               new NotGate(t, 1, en.createReadOnlyEnd(), notEn.createReadWriteEnd());\r
+               new TriStateBuffer(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd(), en.createReadOnlyEnd());\r
+               new TriStateBuffer(t, 1, b.createReadOnlyEnd(), a.createReadWriteEnd(), notEn.createReadOnlyEnd());\r
+\r
+               ReadWriteEnd enI = en.createReadWriteEnd(), aI = a.createReadWriteEnd(), bI = b.createReadWriteEnd();\r
+               enI.feedSignals(Bit.ONE);\r
+               aI.feedSignals(Bit.ONE);\r
+               bI.feedSignals(Bit.Z);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.ONE, b.getValue());\r
+\r
+               bI.feedSignals(Bit.ZERO);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.X, b.getValue());\r
+               assertEquals(Bit.ONE, a.getValue());\r
+\r
+               aI.clearSignals();\r
+               enI.feedSignals(Bit.ZERO);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.ZERO, a.getValue());\r
+\r
+       }\r
+\r
+       @Test\r
+       void muxTest()\r
+       {\r
+               t.reset();\r
+               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
+               ReadWriteEnd selectIn = select.createReadWriteEnd();\r
+\r
+               selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+               c.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               new Mux(t, 1, out.createReadWriteEnd(), select.createReadOnlyEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(),\r
+                               c.createReadOnlyEnd());\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+               selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
+\r
+       }\r
+\r
+       @Test\r
+       void demuxTest()\r
+       {\r
+               t.reset();\r
+               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
+               ReadWriteEnd selectIn = select.createReadWriteEnd();\r
+\r
+               selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
+               in.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+\r
+               new Demux(t, 1, in.createReadOnlyEnd(), select.createReadOnlyEnd(), a.createReadWriteEnd(), b.createReadWriteEnd(),\r
+                               c.createReadWriteEnd());\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+               assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
+               assertBitArrayEquals(c.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
+               selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
+               assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
+               assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
+\r
+               selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
+               assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);\r
+               assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
+\r
+       }\r
+\r
+       @Test\r
+       void andTest()\r
+       {\r
+               t.reset();\r
+               Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);\r
+               new AndGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
+               b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
+       }\r
+\r
+       @Test\r
+       void orTest()\r
+       {\r
+               t.reset();\r
+               Wire a = new Wire(t, 4, 1), b = new Wire(t, 4, 3), c = new Wire(t, 4, 1);\r
+               new OrGate(t, 1, c.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());\r
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
+               b.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);\r
+       }\r
+\r
+       @Test\r
+       void xorTest()\r
+       {\r
+               t.reset();\r
+               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
+               new XorGate(t, 1, d.createReadWriteEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());\r
+               a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
+               b.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
+               c.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);\r
+       }\r
+\r
+       @Test\r
+       void notTest()\r
+       {\r
+               t.reset();\r
+               Wire a = new Wire(t, 3, 1), b = new Wire(t, 3, 2);\r
+               new NotGate(t, 1, a.createReadOnlyEnd(), b.createReadWriteEnd());\r
+               a.createReadWriteEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO, Bit.ZERO);\r
+       }\r
+\r
+       @Test\r
+       void rsLatchCircuitTest()\r
+       {\r
+               t.reset();\r
+               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
+                               nq = new Wire(t, 1, 1);\r
+\r
+               new OrGate(t, 1, t2.createReadWriteEnd(), r.createReadOnlyEnd(), nq.createReadOnlyEnd());\r
+               new OrGate(t, 1, t1.createReadWriteEnd(), s.createReadOnlyEnd(), q.createReadOnlyEnd());\r
+               new NotGate(t, 1, t2.createReadOnlyEnd(), q.createReadWriteEnd());\r
+               new NotGate(t, 1, t1.createReadOnlyEnd(), nq.createReadWriteEnd());\r
+\r
+               ReadWriteEnd sIn = s.createReadWriteEnd(), rIn = r.createReadWriteEnd();\r
+\r
+               sIn.feedSignals(Bit.ONE);\r
+               rIn.feedSignals(Bit.ZERO);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.ONE, q.getValue());\r
+               assertEquals(Bit.ZERO, nq.getValue());\r
+\r
+               sIn.feedSignals(Bit.ZERO);\r
+\r
+               t.executeAll();\r
+               assertEquals(Bit.ONE, q.getValue());\r
+               assertEquals(Bit.ZERO, nq.getValue());\r
+\r
+               rIn.feedSignals(Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(Bit.ZERO, q.getValue());\r
+               assertEquals(Bit.ONE, nq.getValue());\r
+       }\r
+\r
+       @Test\r
+       void numericValueTest()\r
+       {\r
+               t.reset();\r
+\r
+               Wire a = new Wire(t, 4, 1);\r
+               a.createReadWriteEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);\r
+\r
+               t.executeAll();\r
+\r
+               assertEquals(15, a.getUnsignedValue());\r
+               assertEquals(-1, a.getSignedValue());\r
+       }\r
+\r
+       @Test\r
+       void multipleInputs()\r
+       {\r
+               t.reset();\r
+               Wire w = new Wire(t, 2, 1);\r
+               ReadWriteEnd wI1 = w.createReadWriteEnd(), wI2 = w.createReadWriteEnd();\r
+               wI1.feedSignals(Bit.ONE, Bit.Z);\r
+               wI2.feedSignals(Bit.Z, Bit.X);\r
+               t.executeAll();\r
+               assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);\r
+\r
+               wI2.feedSignals(Bit.ZERO, Bit.Z);\r
+               t.executeAll();\r
+               assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);\r
+\r
+               wI2.feedSignals(Bit.Z, Bit.Z);\r
+               t.executeAll();\r
+               assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
+\r
+               wI2.feedSignals(Bit.ONE, Bit.Z);\r
+               ReadEnd rE = w.createReadOnlyEnd();\r
+               rE.addObserver((i, oldValues) -> fail("WireEnd notified observer, although value did not change."));\r
+               t.executeAll();\r
+               rE.close();\r
+               wI1.feedSignals(Bit.X, Bit.X);\r
+               t.executeAll();\r
+               wI1.addObserver((i, oldValues) -> fail("WireEnd notified observer, although it was closed."));\r
+               wI1.close();\r
+               assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
+       }\r
+\r
+       @Test\r
+       void wireConnections()\r
+       {\r
+               // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde\r
+\r
+               t.reset();\r
+\r
+               Wire a = new Wire(t, 1, 2);\r
+               Wire b = new Wire(t, 1, 2);\r
+               Wire c = new Wire(t, 1, 2);\r
+               ReadWriteEnd aI = a.createReadWriteEnd();\r
+               ReadWriteEnd bI = b.createReadWriteEnd();\r
+               ReadWriteEnd cI = c.createReadWriteEnd();\r
+\r
+               TestBitDisplay test = new TestBitDisplay(t, c.createReadOnlyEnd());\r
+               TestBitDisplay test2 = new TestBitDisplay(t, a.createReadOnlyEnd());\r
+               LongConsumer print = time -> System.out.format("Time %2d\n   a: %s\n   b: %s\n   c: %s\n", time, a, b, c);\r
+\r
+               cI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+\r
+               cI.feedSignals(Bit.X);\r
+               test.assertAfterSimulationIs(print, Bit.X);\r
+\r
+               cI.feedSignals(Bit.X);\r
+               cI.feedSignals(Bit.Z);\r
+               test.assertAfterSimulationIs(print, Bit.Z);\r
+\r
+               new Connector(t, b.createReadWriteEnd(), c.createReadWriteEnd()).connect();\r
+               test.assertAfterSimulationIs(print, Bit.Z);\r
+               System.err.println("ONE");\r
+               bI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+               System.err.println("ZERO");\r
+               bI.feedSignals(Bit.ZERO);\r
+               test.assertAfterSimulationIs(print, Bit.ZERO);\r
+               System.err.println("Z");\r
+               bI.feedSignals(Bit.Z);\r
+               test.assertAfterSimulationIs(print, Bit.Z);\r
+\r
+               new Connector(t, a.createReadWriteEnd(), b.createReadWriteEnd()).connect();\r
+               System.err.println("Z 2");\r
+               aI.feedSignals(Bit.Z);\r
+               test.assertAfterSimulationIs(print, Bit.Z);\r
+               test2.assertAfterSimulationIs(Bit.Z);\r
+               System.err.println("ONE 2");\r
+               aI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+               test2.assertAfterSimulationIs(Bit.ONE);\r
+               System.err.println("ZERO 2");\r
+               aI.feedSignals(Bit.ZERO);\r
+               test.assertAfterSimulationIs(print, Bit.ZERO);\r
+               test2.assertAfterSimulationIs(Bit.ZERO);\r
+               System.err.println("Z 2 II");\r
+               aI.feedSignals(Bit.Z);\r
+               test.assertAfterSimulationIs(print, Bit.Z);\r
+               test2.assertAfterSimulationIs(Bit.Z);\r
+\r
+               System.err.println("No Conflict yet");\r
+               bI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+               test2.assertAfterSimulationIs(Bit.ONE);\r
+               aI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+               test2.assertAfterSimulationIs(Bit.ONE);\r
+               System.err.println("Conflict");\r
+               aI.feedSignals(Bit.ZERO);\r
+               test.assertAfterSimulationIs(print, Bit.X);\r
+               test2.assertAfterSimulationIs(Bit.X);\r
+               aI.feedSignals(Bit.ONE);\r
+               test.assertAfterSimulationIs(print, Bit.ONE);\r
+               test2.assertAfterSimulationIs(Bit.ONE);\r
+       }\r
+\r
+       private static void assertBitArrayEquals(BitVector actual, Bit... expected)\r
+       {\r
+               assertArrayEquals(expected, actual.getBits());\r
+       }\r
+}\r