embark/dapps/templates/demo/test/simple_storage_spec.js

/*global contract, config, it, assert, web3*/
const SimpleStorage = require('Embark/contracts/SimpleStorage');

let accounts;

// For documentation please see https://embark.status.im/docs/contracts_testing.html
config({
  //deployment: {
  //  accounts: [
  //    // you can configure custom accounts with a custom balance
  //    // see https://embark.status.im/docs/contracts_testing.html#Configuring-accounts
  //  ]
  //},
  contracts: {
    deploy: {
      "SimpleStorage": {
        args: [100]
      }
    }
  }
}, (_err, web3_accounts) => {
  accounts = web3_accounts;
});

contract("SimpleStorage", function () {
  this.timeout(0);

  it("should set constructor value", async function () {
    let result = await SimpleStorage.methods.storedData().call();
    assert.strictEqual(parseInt(result, 10), 100);
  });

  it("set storage value", async function () {
    await SimpleStorage.methods.set(150).send();
    let result = await SimpleStorage.methods.get().call();
    assert.strictEqual(parseInt(result, 10), 150);
  });

  it("should have account with balance", async function() {
    let balance = await web3.eth.getBalance(accounts[0]);
    assert.ok(parseInt(balance, 10) > 0);
  });
});