diff --git a/src/test/java/inferWildcards/TestInferWildcards.java b/src/test/java/inferWildcards/TestInferWildcards.java
index 06c780a1..dcfd17b4 100644
--- a/src/test/java/inferWildcards/TestInferWildcards.java
+++ b/src/test/java/inferWildcards/TestInferWildcards.java
@@ -49,17 +49,21 @@ public class TestInferWildcards
 		for (CompilationUnitTree t : iterable) {
 			System.out.println("unit: " + t.toString());
 
-			InferWildcardsVisitor inferWildcardsVisitor = new InferWildcardsVisitor();
-			t.accept(inferWildcardsVisitor, null);
-
-			// Generated Constraints
-			ConstraintSet constraintSet = inferWildcardsVisitor.getConstraintSet();
-			System.out.println("Constraints: " + constraintSet);
-
-			// Generated TPH
-			Map<TypePlaceholder, Tree> placeholderMapping = inferWildcardsVisitor.getPlaceholderMapping();
-			System.out.println("Placeholder: " + placeholderMapping.toString());
-
+			testUnit(t);
 		}
 	}
+
+	@SuppressWarnings("rawtypes")
+	private void testUnit (CompilationUnitTree t) {
+		InferWildcardsVisitor inferWildcardsVisitor = new InferWildcardsVisitor();
+		t.accept(inferWildcardsVisitor, null);
+
+		// Generated Constraints
+		ConstraintSet constraintSet = inferWildcardsVisitor.getConstraintSet();
+		System.out.println("Constraints: " + constraintSet);
+
+		// Generated TPH
+		Map<TypePlaceholder, Tree> placeholderMapping = inferWildcardsVisitor.getPlaceholderMapping();
+		System.out.println("Placeholder: " + placeholderMapping.toString());
+	}
 }