diff --git a/gtsam/discrete/tests/testAlgebraicDecisionTree.cpp b/gtsam/discrete/tests/testAlgebraicDecisionTree.cpp
index f1b661e6f..ffb1f0b5a 100644
--- a/gtsam/discrete/tests/testAlgebraicDecisionTree.cpp
+++ b/gtsam/discrete/tests/testAlgebraicDecisionTree.cpp
@@ -133,20 +133,25 @@ ADT create(const Signature& signature) {
   return p;
 }
 
+/* ************************************************************************* */
+namespace asiaCPTs {
+DiscreteKey A(0, 2), S(1, 2), T(2, 2), L(3, 2), B(4, 2), E(5, 2), X(6, 2),
+    D(7, 2);
+
+ADT pA = create(A % "99/1");
+ADT pS = create(S % "50/50");
+ADT pT = create(T | A = "99/1 95/5");
+ADT pL = create(L | S = "99/1 90/10");
+ADT pB = create(B | S = "70/30 40/60");
+ADT pE = create((E | T, L) = "F T T T");
+ADT pX = create(X | E = "95/5 2/98");
+ADT pD = create((D | E, B) = "9/1 2/8 3/7 1/9");
+}  // namespace asiaCPTs
+
 /* ************************************************************************* */
 // test Asia Joint
 TEST(ADT, joint) {
-  DiscreteKey A(0, 2), S(1, 2), T(2, 2), L(3, 2), B(4, 2), E(5, 2), X(6, 2),
-      D(7, 2);
-
-  ADT pA = create(A % "99/1");
-  ADT pS = create(S % "50/50");
-  ADT pT = create(T | A = "99/1 95/5");
-  ADT pL = create(L | S = "99/1 90/10");
-  ADT pB = create(B | S = "70/30 40/60");
-  ADT pE = create((E | T, L) = "F T T T");
-  ADT pX = create(X | E = "95/5 2/98");
-  ADT pD = create((D | E, B) = "9/1 2/8 3/7 1/9");
+  using namespace asiaCPTs;
 
   // Create joint
   resetCounts();
@@ -172,6 +177,11 @@ TEST(ADT, joint) {
   EXPECT_LONGS_EQUAL(508, muls);
 #endif
   printCounts("Asia joint");
+}
+
+/* ************************************************************************* */
+TEST(ADT, combine) {
+  using namespace asiaCPTs;
 
   // Form P(A,S,T,L) = P(A) P(S) P(T|A) P(L|S)
   ADT pASTL = pA;
@@ -187,7 +197,7 @@ TEST(ADT, joint) {
 }
 
 /* ************************************************************************* */
-// test Inference with joint
+// test Inference with joint, created using different ordering
 TEST(ADT, inference) {
   DiscreteKey A(0, 2), D(1, 2),  //
       B(2, 2), L(3, 2), E(4, 2), S(5, 2), T(6, 2), X(7, 2);
@@ -248,7 +258,6 @@ TEST(ADT, inference) {
 TEST(ADT, factor_graph) {
   DiscreteKey B(0, 2), L(1, 2), E(2, 2), S(3, 2), T(4, 2), X(5, 2);
 
-  resetCounts();
   ADT pS = create(S % "50/50");
   ADT pT = create(T % "95/5");
   ADT pL = create(L | S = "99/1 90/10");
@@ -256,7 +265,6 @@ TEST(ADT, factor_graph) {
   ADT pX = create(X | E = "95/5 2/98");
   ADT pD = create(B | E = "1/8 7/9");
   ADT pB = create(B | S = "70/30 40/60");
-  printCounts("Create CPTs");
 
   // Create joint
   resetCounts();