Asynchronous Step Definitions

The callbacks for Feature, Scenario, Background etc do not allow for async functions so this should be avoided:

Feature(async ({ Scenario }) => {
  Scenario('', async () => {});
});

Steps however can be async or return a promise.

The following is allowed:

Feature(({ Scenario }) => {
  Scenario('', ({ Given }) => {
    Given('', async () => {
      await someActionAsync();
    });
  });
});

With Promises

You can avoid making a callback async by simply returning a promise directly at the end of the step

Feature(({ Scenario }) => {
  Scenario('', ({ Given }) => {
    Given('', () => {
      return someActionAsync();
    });
  });
});

You can also declare functions which can be used directly by the step

async function someAsyncFunction(){
    const response = await HTTP.getThing('something')
    const updated = modifyResponse(response);
    return updated
}

Feature(({ Scenario }) => {
  Scenario('', ({ Given }) => {
    Given('', someActionAsyncFunction);
  });
});