X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=era.mi%2Fsrc%2Fera%2Fmi%2Flogic%2Ftests%2FComponentTest.java;h=c233552f595aa8ad25e7be31131dca7b108e5c32;hb=f2284b0dcfb187ed6473d0a9903eb99ef31d49c5;hp=c49e0040d907c7fe9d04da880634e81246845a2a;hpb=9ea0dc9cec7c1fd6adba4bb3806e328470416bd9;p=Mograsim.git

diff --git a/era.mi/src/era/mi/logic/tests/ComponentTest.java b/era.mi/src/era/mi/logic/tests/ComponentTest.java
index c49e0040..c233552f 100644
--- a/era.mi/src/era/mi/logic/tests/ComponentTest.java
+++ b/era.mi/src/era/mi/logic/tests/ComponentTest.java
@@ -9,6 +9,7 @@ import org.junit.jupiter.api.Test;
 
 import era.mi.logic.Bit;
 import era.mi.logic.Simulation;
+import era.mi.logic.components.Demux;
 import era.mi.logic.components.Merger;
 import era.mi.logic.components.Mux;
 import era.mi.logic.components.Splitter;
@@ -139,6 +140,39 @@ class ComponentTest
 
     }
 
+    @Test
+    void demuxTest()
+    {
+	Simulation.TIMELINE.reset();
+	WireArray a = new WireArray(4, 3), b = new WireArray(4, 6), c = new WireArray(4, 4),
+		select = new WireArray(2, 5), in = new WireArray(4, 1);
+	WireArrayInput selectIn = select.createInput();
+
+	selectIn.feedSignals(Bit.ZERO, Bit.ZERO);
+	in.createInput().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+
+	new Demux(1, in, select, a, b, c);
+	Simulation.TIMELINE.executeAll();
+
+	assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+	assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	selectIn.feedSignals(Bit.ZERO, Bit.ONE);
+	Simulation.TIMELINE.executeAll();
+
+	assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+
+	selectIn.feedSignals(Bit.ONE, Bit.ONE);
+	Simulation.TIMELINE.executeAll();
+
+	assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	assertBitArrayEquals(b.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+	assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+
+    }
+    
     @Test
     void andTest()
     {
@@ -234,7 +268,7 @@ class ComponentTest
 	assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
 
 	wI2.feedSignals(Bit.ONE, Bit.Z);
-	w.addObserver((i) -> fail("WireArray notified observer, although value did not change."));
+	w.addObserver((i, oldValues) -> fail("WireArray notified observer, although value did not change."));
 	Simulation.TIMELINE.executeAll();
 	assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
     }