Add bounty test to test against checkInvarient

contracts/bounties/SimpleTokenBounty.sol

@@ -23,6 +23,10 @@ contract SimpleTokenBounty is PullPayment {
     return target;
   }
 
+  function checkInvarient() returns(bool){
+    return true;
+  }
+
   function claim(SimpleToken target) {
     address researcher = researchers[target];
     if (researcher == 0) throw;

test/Bounty.js

+contract('Bounty', function(accounts) {
+  it.only("create target", function(done){
+    var bounty = Bounty.deployed();
+
+    bounty.createTarget().
+      then(function() {
+        return bounty.checkInvarient.call()
+      }).
+      then(function(result) {
+        assert.isTrue(result);
+      }).
+      then(done);
+  })
+});