-package era.mi.logic.tests;\r
-\r
-import static org.junit.jupiter.api.Assertions.*;\r
-\r
-import java.util.Arrays;\r
-import java.util.function.LongConsumer;\r
-\r
-import org.junit.jupiter.api.Test;\r
-\r
-import era.mi.logic.Bit;\r
-import era.mi.logic.Simulation;\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.wires.WireArray;\r
-import era.mi.logic.wires.WireArray.WireArrayInput;\r
-\r
-class ComponentTest\r
-{\r
- \r
- @Test\r
- void circuitExampleTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- 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),\r
- 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);\r
- new AndGate(1, f, a, b);\r
- new NotGate(1, f, g);\r
- new Merger(h, c, g);\r
- new Mux(1, i, e, h, d);\r
- new Splitter(i, k, j);\r
- \r
- a.createInput().feedSignals(Bit.ZERO);\r
- b.createInput().feedSignals(Bit.ONE);\r
- c.createInput().feedSignals(Bit.ZERO);\r
- d.createInput().feedSignals(Bit.ONE, Bit.ONE);\r
- e.createInput().feedSignals(Bit.ZERO);\r
- \r
- Simulation.TIMELINE.executeAll();\r
- \r
- assertEquals(Bit.ONE, j.getValue());\r
- assertEquals(Bit.ZERO, k.getValue());\r
- }\r
-\r
- @Test\r
- void splitterTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), in = new WireArray(8, 1);\r
- in.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
- new Splitter(in, a, b, c);\r
-\r
- Simulation.TIMELINE.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
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(3, 1), b = new WireArray(2, 1), c = new WireArray(3, 1), out = new WireArray(8, 1);\r
- a.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);\r
- b.createInput().feedSignals(Bit.ONE, Bit.ZERO);\r
- c.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- new Merger(out, a, b, c);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertTrue(Arrays.equals(out.getValues(),\r
- new Bit[] { 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
- WireArray a = new WireArray(1, 1), b = new WireArray(1, 1), en = new WireArray(1, 1),\r
- notEn = new WireArray(1, 1);\r
- new NotGate(1, en, notEn);\r
- new TriStateBuffer(1, a, b, en);\r
- new TriStateBuffer(1, b, a, notEn);\r
-\r
- WireArrayInput enI = en.createInput(), aI = a.createInput(), bI = b.createInput();\r
- enI.feedSignals(Bit.ONE);\r
- aI.feedSignals(Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertEquals(Bit.ONE, b.getValue());\r
-\r
- bI.feedSignals(Bit.ZERO);\r
-\r
- Simulation.TIMELINE.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
- Simulation.TIMELINE.executeAll();\r
-\r
- assertEquals(Bit.ZERO, a.getValue());\r
-\r
- }\r
-\r
- @Test\r
- void muxTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(4, 3), b = new WireArray(4, 6), c = new WireArray(4, 4),\r
- select = new WireArray(2, 5), out = new WireArray(4, 1);\r
- WireArrayInput selectIn = select.createInput();\r
-\r
- selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
- a.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
- c.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- new Mux(1, out, select, a, b, c);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
- selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
-\r
- }\r
-\r
- @Test\r
- void demuxTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(4, 3), b = new WireArray(4, 6), c = new WireArray(4, 4),\r
- select = new WireArray(2, 5), in = new WireArray(4, 1);\r
- WireArrayInput selectIn = select.createInput();\r
-\r
- selectIn.feedSignals(Bit.ZERO, Bit.ZERO);\r
- in.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
-\r
- new Demux(1, in, select, a, b, c);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
- assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- selectIn.feedSignals(Bit.ZERO, Bit.ONE);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);\r
-\r
- selectIn.feedSignals(Bit.ONE, Bit.ONE);\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
- assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);\r
-\r
- }\r
- \r
- @Test\r
- void andTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(4, 1), b = new WireArray(4, 3), c = new WireArray(4, 1);\r
- new AndGate(1, c, a, b);\r
- a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
- b.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
- \r
- assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
- }\r
-\r
- @Test\r
- void orTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(4, 1), b = new WireArray(4, 3), c = new WireArray(4, 1);\r
- new OrGate(1, c, a, b);\r
- a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);\r
- b.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);\r
- }\r
- \r
- @Test\r
- void xorTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray a = new WireArray(3, 1), b = new WireArray(3, 2), c = new WireArray(3, 1), d = new WireArray(3, 1);\r
- new XorGate(1, d, a, b, c);\r
- a.createInput().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);\r
- b.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
- c.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);\r
- }\r
-\r
- @Test\r
- void rsLatchCircuitTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray r = new WireArray(1, 1), s = new WireArray(1, 1), t1 = new WireArray(1, 15), t2 = new WireArray(1, 1),\r
- q = new WireArray(1, 1), nq = new WireArray(1, 1);\r
-\r
- new OrGate(1, t2, r, nq);\r
- new OrGate(1, t1, s, q);\r
- new NotGate(1, t2, q);\r
- new NotGate(1, t1, nq);\r
-\r
- WireArrayInput sIn = s.createInput(), rIn = r.createInput();\r
-\r
- sIn.feedSignals(Bit.ONE);\r
- rIn.feedSignals(Bit.ZERO);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertEquals(Bit.ONE, q.getValue());\r
- assertEquals(Bit.ZERO, nq.getValue());\r
-\r
- sIn.feedSignals(Bit.ZERO);\r
-\r
- Simulation.TIMELINE.executeAll();\r
- assertEquals(Bit.ONE, q.getValue());\r
- assertEquals(Bit.ZERO, nq.getValue());\r
-\r
- rIn.feedSignals(Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertEquals(Bit.ZERO, q.getValue());\r
- assertEquals(Bit.ONE, nq.getValue());\r
- }\r
-\r
- @Test\r
- void numericValueTest()\r
- {\r
- Simulation.TIMELINE.reset();\r
-\r
- WireArray a = new WireArray(4, 1);\r
- a.createInput().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);\r
-\r
- Simulation.TIMELINE.executeAll();\r
-\r
- assertEquals(15, a.getUnsignedValue());\r
- assertEquals(-1, a.getSignedValue());\r
- }\r
-\r
- @Test\r
- void multipleInputs()\r
- {\r
- Simulation.TIMELINE.reset();\r
- WireArray w = new WireArray(2, 1);\r
- WireArrayInput wI1 = w.createInput(), wI2 = w.createInput();\r
- wI1.feedSignals(Bit.ONE, Bit.Z);\r
- wI2.feedSignals(Bit.Z, Bit.X);\r
- Simulation.TIMELINE.executeAll();\r
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);\r
-\r
- wI2.feedSignals(Bit.ZERO, Bit.Z);\r
- Simulation.TIMELINE.executeAll();\r
- assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);\r
-\r
- wI2.feedSignals(Bit.Z, Bit.Z);\r
- Simulation.TIMELINE.executeAll();\r
- assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);\r
-\r
- wI2.feedSignals(Bit.ONE, Bit.Z);\r
- w.addObserver((i, oldValues) -> fail("WireArray notified observer, although value did not change."));\r
- Simulation.TIMELINE.executeAll();\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
- Simulation.TIMELINE.reset();\r
-\r
- WireArray a = new WireArray(1, 2);\r
- WireArray b = new WireArray(1, 2);\r
- WireArray c = new WireArray(1, 2);\r
- WireArrayInput aI = a.createInput();\r
- WireArrayInput bI = b.createInput();\r
- WireArrayInput cI = c.createInput();\r
-\r
- TestBitDisplay test = new TestBitDisplay(c);\r
- TestBitDisplay test2 = new TestBitDisplay(a);\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(b, c);\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(a, b);\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(Bit[] actual, Bit... expected)\r
- {\r
- assertArrayEquals(expected, actual);\r
- }\r
-}\r