write ownable simple test

contracts/Ownable.sol

@@ -3,7 +3,7 @@
  * Base contract with an owner
  */
 contract Ownable {
-  address owner;
+  address public owner;
 
   function Ownable() {
     owner = msg.sender;

migrations/2_deploy_contracts.js

@@ -2,5 +2,6 @@ module.exports = function(deployer) {
   deployer.deploy(PullPaymentBid);
   deployer.deploy(BadArrayUse);
   deployer.deploy(Bounty);
+  deployer.deploy(Ownable);
   deployer.deploy(LimitFunds);
 };

test/ownable.js

+contract('Ownable', function(accounts) {
+  it("should have an owner", function(done) {
+    var ownable = Ownable.deployed();
+    return ownable.owner()
+    .then(function(owner) {
+      assert.isTrue(owner != 0);
+    })
+    .then(done)
+
+  });
+});