output.txt

$ truffle test test/test.js
Using environment test.
Compiling contracts...


  Contract: Test
Unhandled rejection AssertionError: expected '1' to equal 2
    at test.js:8:11
    at tryCatcher (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/promise.js:503:31)
    at Promise._settlePromise (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/promise.js:560:18)
    at Promise._settlePromise0 (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/promise.js:605:10)
    at Promise._settlePromises (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/promise.js:684:18)
    at Async._drainQueue (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/async.js:126:16)
    at Async._drainQueues (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/async.js:136:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/opt/local/lib/node_modules/truffle/node_modules/ether-pudding/node_modules/bluebird/js/release/async.js:16:14)
    at processImmediate [as _immediateCallback] (timers.js:383:17)
    at Function.module.exports.loopWhile (/opt/local/lib/node_modules/truffle/node_modules/deasync/index.js:64:21)
    at /opt/local/lib/node_modules/truffle/node_modules/deasync/index.js:36:18
    at runTask (/opt/local/lib/node_modules/truffle/cli.js:46:12)
    at Object.<anonymous> (/opt/local/lib/node_modules/truffle/cli.js:331:14)
    at Module._compile (module.js:435:26)
    at Object.Module._extensions..js (module.js:442:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Function.Module.runMain (module.js:467:10)
    at startup (node.js:136:18)
    at node.js:963:3

test.js

contract('Test', function(accounts) {
	it('should increment', function(done) {
		var test = Test.deployed();
		test.increment.call().then(function(ret) {
			assert.equal(ret.valueOf(), 1);
			return test.increment.call();
		}).then(function(ret) {
			assert.equal(ret.valueOf(), 2);
		});
	});
});

Test.sol

contract Test {
	uint i;

	function increment() returns (uint) {
		i += 1;
		return i;
	}
}