Fix: Costs between components did not get added, Added test case to confirm

src/main/java/de/monticore/lang/monticar/generator/middleware/clustering/AutomaticClusteringHelper.java

@@ -35,8 +35,8 @@ public class AutomaticClusteringHelper {
                 int index1 = subcompLabels.get(sourceCompOpt.getFullName());
                 int index2 = subcompLabels.get(targetCompOpt.getFullName());
 
-                res[index1][index2] = getTypeCostHeuristic(con.getSourcePort());
-                res[index2][index1] = getTypeCostHeuristic(con.getSourcePort());
+                res[index1][index2] += getTypeCostHeuristic(con.getSourcePort());
+                res[index2][index1] += getTypeCostHeuristic(con.getSourcePort());
         });
 
 

src/test/java/de/monticore/lang/monticar/generator/middleware/AutomaticClusteringTest.java

@@ -96,6 +96,31 @@ public class AutomaticClusteringTest extends AbstractSymtabTest{
         }
     }
 
+    @Test
+    public void testAdjacencyMatrixCreation2(){
+        TaggingResolver taggingResolver = AbstractSymtabTest.createSymTabAndTaggingResolver(TEST_PATH);
+
+        EMAComponentInstanceSymbol componentInstanceSymbol = taggingResolver.<EMAComponentInstanceSymbol>resolve("lab.adjMatrixComp", EMAComponentInstanceSymbol.KIND).orElse(null);
+        assertNotNull(componentInstanceSymbol);
+
+        List<EMAComponentInstanceSymbol> subcompsOrderedByName = ComponentHelper.getSubcompsOrderedByName(componentInstanceSymbol);
+        double[][] matrix = AutomaticClusteringHelper.createAdjacencyMatrix(subcompsOrderedByName,
+                ComponentHelper.getInnerConnectors(componentInstanceSymbol),
+                ComponentHelper.getLabelsForSubcomps(subcompsOrderedByName));
+
+
+        //sorted full name: sub1, sub2, sub3
+        double[][] expRes = {{0,10,20}  //sub1
+                            ,{10,0,0}  //sub2
+                            ,{20,0,0}}; //sub3
+
+        for(int i = 0; i< expRes.length; i++){
+            for(int j = 0; j < expRes[i].length;j++){
+                assertTrue(expRes[i][j] == matrix[i][j]);
+            }
+        }
+    }
+
 
     @Test
     public void testSpectralClustering(){

src/test/resources/lab/AdjMatrixComp.emam

+package lab;
+
+component AdjMatrixComp{
+
+
+    component Sub1{
+        ports out Q qOut1,
+              out Q qOut2,
+              out Q qOut3;
+    }
+
+    component Sub2{
+        ports in Q qIn;
+    }
+
+    component Sub3{
+        ports in Q qIn1,
+              in Q qIn2;
+
+    }
+
+    instance Sub1 sub1;
+    instance Sub2 sub2;
+    instance Sub3 sub3;
+
+    connect sub1.qOut1 -> sub2.qIn;
+    connect sub1.qOut2 -> sub3.qIn1;
+    connect sub1.qOut3 -> sub3.qIn2;
+
+}
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