Codeceptjs on Google Cloud Function goto of undefined - node.js

Question

I'm trying to automate a web activity using CodeceptJS (with Puppeteer) running in a Google Cloud Function.
My index.js is:
const Container = require('codeceptjs').container;
const Codecept = require('codeceptjs').codecept;
const event = require('codeceptjs').event;
const path = require('path');
module.exports.basicTest = async (req, res) => {
let message = '';
// helpers config
let config = {
tests: './*_test.js',
output: './output',
helpers: {
Puppeteer: {
url: 'https://github.com', // base url
show: true,
disableScreenshots: true, // don't store screenshots on failure
windowSize: '1200x1000', // set window size dimensions
waitForAction: 1000, // increase timeout for clicking
waitForNavigation: [ 'domcontentloaded', 'networkidle0' ], // wait for document to load
chrome: {
args: ['--no-sandbox'] // IMPORTANT! Browser can't be run without this!
}
}
},
include: {
I: './steps_file.js'
},
bootstrap: null,
mocha: {},
name: 'basic_test',
// Once a tests are finished - send back result via HTTP
teardown: (done) => {
res.send(`Finished\n${message}`);
}
};
// pass more verbose output
let opts = {
debug: true,
steps: true
};
// a simple reporter, let's collect all passed and failed tests
event.dispatcher.on(event.test.passed, (test) => {
message += `- Test "${test.title}" passed 😎`;
});
event.dispatcher.on(event.test.failed, (test) => {
message += `- Test "${test.title}" failed 😭`;
});
// create runner
let codecept = new Codecept(config, opts);
// codecept.init(testRoot)
codecept.initGlobals(__dirname);
// create helpers, support files, mocha
Container.create(config, opts);
try {
// initialize listeners
codecept.bootstrap();
// load tests
codecept.loadTests('*_test.js');
// run tests
codecept.run();
} catch (err) {
printError(err)
process.exitCode = 1
} finally {
await codecept.teardown()
}
}
and my simple test is:
Feature('Basic Automation');
Scenario('Basic Test', async ({ I }) => {
// ===== Login =====
pause()
I.amOnPage('https://cotps.com');
I.see('Built for developers', 'h1');
});
If I run it using npx codeceptjs run --steps it works but if I run it using node -e 'require("./index").basicTest() I get the error:
Cannot read property 'goto' of undefined. I also get the error if I deploy it to GCP and run it. I've looked through the docs for both Codecept and Puppeteer but found nothing and the only examples online are for previous versions of the libraries.