Changed test output

console.js

@@ -1,7 +1,7 @@
 runTests = (label, network, tests) => {
   console.log(`--- ${label}`);
   for (test of tests) {
-    console.log(`${label} test ${JSON.stringify(test)}: ${network.run(test)}`);
+    console.log(`${label} test ${JSON.stringify(test)}: ${JSON.stringify(network.run(test))}`);
   }
 }