Import test module into main test - Nightwatch - selenium

Question

I'm learning Nightwatch and have successfully got my first tests running. I'd now like to organise my tests a little better and use have a bunch of reusable common tests that I can build a main test with going forward. I've attempted to set this up using the code below but I'm not too familiar with Node exports, (truth be known I would prefer to use es6 import / export so if anyone can shed any light on this I'd be grateful) so I've probably made some fundamental error:
File structure
Tests
-auth
-- auth.js
index.js
nightwatch.json
{
"src_folders" : ["tests"],
"output_folder" : "reports",
"selenium" : {
"start_process" : true,
"server_path" : "./bin/selenium-server-standalone-3.8.1.jar",
"log_path" : "",
"port" : 4444,
"cli_args" : {
"webdriver.chrome.driver" : "./bin/chromedriver"
}
},
"test_settings" : {
"default" : {
"launch_url" : "http://localhost",
"selenium_port" : 4444,
"selenium_host" : "localhost",
"desiredCapabilities": {
"browserName": "chrome",
"javascriptEnabled": true,
"acceptSslCerts": true
}
}
}
}
package.json
{
"name": "mostesting",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test-e2e": "nightwatch"
},
"author": "",
"license": "ISC",
"dependencies": {
"babel-plugin-add-module-exports": "^0.2.1",
"nightwatch": "^0.9.19",
"selenium-webdriver": "^4.0.0-alpha.1"
},
"devDependencies": {
"babel-core": "^6.26.0",
"babel-plugin-add-module-exports": "^0.2.1",
"babel-preset-es2015": "^6.24.1"
}
}
index.js
const auth = require('./auth/auth.js')
module.exports = {
'Log into system': auth.login()
}
auth.js
exports.login = function (client) {
client
.url('http://myurl.co.uk')
.waitForElementVisible('body', 1000)
.assert.title('Reach - Log in')
.assert.visible('#UserName')
.setValue('#UserName', 'XXXX')
.assert.visible('#Password')
.setValue('#Password', 'XXXX')
.assert.visible('input[value="Login"]')
.click('input[value="Login"]')
.waitForElementVisible('img.test', 10000, false)
}
When I run the test it opens, it runs and passes but at the end I get the following console error:
OK. 6 assertions passed. (8.549s)
There was an error while starting the test runner:
TypeError: Cannot read property 'url' of undefined
at Object.exports.login (/Applications/MAMP/htdocs/mostesting/tests/auth/auth.js:3:5)
at Object.<anonymous> (/Applications/MAMP/htdocs/mostesting/tests/index.js:4:27)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at new Module (/Applications/MAMP/htdocs/mostesting/node_modules/nightwatch/lib/runner/module.js:7:23)
Please can anyone point me to where I'm going wrong?
Many thanks in advance.

Answer 1

When you're defining your test run, no need to call test run function auth.login(). What you need is to export this function, so Nightwatch can execute it:
// index.js
const auth = require('./auth/auth.js')
module.exports = {
'Log into system': auth.login
}