pragma solidity >=0.4.25 <0.6.0; import "truffle/Assert.sol"; import "truffle/DeployedAddresses.sol"; import "../contracts/Simple.sol"; contract TestSimple { function test_x_is_0() public { Simple simple = Simple(DeployedAddresses.Simple()); uint expected = 0; Assert.equal(simple.x, expected, "x should equal 0"); } }