old_contents: import test from 'ava';
  import Elixir from '../build/Elixir.App';
  
  const sinon = require('sinon');
  
  test('Elixir.start:calls the modules start function', t => {
    const callback = sinon.spy();
  
    Elixir.start(Elixir.Main, [callback]);
  
    t.true(callback.called);
  });
  
new_contents: import test from 'ava';
  import Elixir from '../build/elixirscript.build.js';
  
  const sinon = require('sinon');
  
  test('Elixir.start:calls the modules start function', t => {
    const callback = sinon.spy();
  
    Elixir.start(Elixir.Main, [callback]);
  
    t.true(callback.called);
  });
  
subject: Update main.spec.js to new default name