Add NoOpReturnOutputRestriction

src/main/java/de/maltemoeser/bcgraph/restrictions/graph/NoOpReturnOutputRestriction.java

@@ -0,0 +1,19 @@
+package de.maltemoeser.bcgraph.restrictions.graph;
+
+import de.maltemoeser.bcgraph.entities.BCOutput;
+import de.maltemoeser.bcgraph.entities.BCTransaction;
+import de.maltemoeser.bcgraph.restrictions.Restriction;
+
+
+public class NoOpReturnOutputRestriction implements Restriction<BCTransaction> {
+
+    @Override
+    public boolean evaluate(BCTransaction entity) {
+        for(BCOutput output : entity.getOutputs()) {
+            if(output.isOpReturn()) {
+                return false;
+            }
+        }
+        return true;
+    }
+}

src/test/java/de/maltemoeser/bcgraph/restrictions/graph/BCTransactionRestrictionTest.java

@@ -1,5 +1,6 @@
 package de.maltemoeser.bcgraph.restrictions.graph;
 
+import de.maltemoeser.bcgraph.entities.BCOutput;
 import de.maltemoeser.bcgraph.entities.BCTransaction;
 import de.maltemoeser.bcgraph.restrictions.EntityRestrictor;
 import de.maltemoeser.bcgraph.restrictions.Restrictor;
@@ -72,4 +73,22 @@ public void testMaxOutputCountRestriction() {
         }
     }
 
+    @Test
+    public void testNoOpReturnOutputRestriction() {
+        try (org.neo4j.graphdb.Transaction ignored = graphDatabaseService.beginTx()) {
+            BCTransaction transaction = getNewTransaction();
+            BCOutput output = getNewOutput();
+            transaction.addOutput(getNewOutput());
+            transaction.addOutput(output);
+            transaction.addOutput(getNewOutput());
+
+            Restrictor<BCTransaction> restrictor = new EntityRestrictor<BCTransaction>()
+                    .restrict(new NoOpReturnOutputRestriction());
+            assertTrue(restrictor.evaluate(transaction));
+
+            output.setOpReturn(true);
+
+            assertFalse(restrictor.evaluate(transaction));
+        }
+    }
 }