Ethereum Cookbook

Writing tests in Solidity

1. You should write tests just like a contract, and the contract name should start with Test, using an uppercase T. It uses the clean room environment just like the JavaScript test cases:

contract TestContract {    ...}

2. Write individual functions to represent each test case that must start with test, using a lowercase t. Each function is executed by a single transaction in the same order as the declaration:

contract TestContract {    testCase1() { ... }    testCase2() { ... }}

3. Use the Assert.sol library provided by Truffle to handle the assertions. Import it from truffle/Assert.sol. You can replace the library with your custom made one, but it should follow the exact signature of Assert.sol:

import "truffle/Assert.sol"; ...