i-built-a-dapp-game-1.js

export default async function expectEvent(promise, eventName = "") {
  try {
    let result = await promise;

    let found = false;

    if (Array.isArray(result.logs)) {
      found = result.logs.find(log => log.event === eventName);
    }

    if (found) {
      return;
    }

    assert.fail("Expected event, got '" + result.logs + "' instead");
  } catch (e) {
    console.log(e);
  }

  assert.fail();
}