What is the best way to leverage command line arguments with AngularJS Protractor?

Currently, I am utilizing Protractor for executing extensive end-to-end tests. Instead of storing login credentials in a spec file, I am keen on passing them through the command line. Upon stumbling across a post showcasing the usage of process.argv.forEach, I couldn't help but wonder how to retain and apply these values in a different spec file. Specifically, I have a designated file known as login-spec.js, where I aim to integrate the input obtained from the command-line.

Your guidance is greatly appreciated!

javascriptangularjsseleniumwebdriverprotractor

Answer №1

Within the provided example configuration, there is an intriguing section:

  // The params object will be passed directly to the protractor instance,
  // and can be accessed from your test. It is an arbitrary object and can
  // contain anything you may need in your test.
  // This can be changed via the command line as:
  //   --params.login.user 'Joe'
  params: {
    login: {
      user: 'Jane',
      password: '1234'
    }
  },

You can then access the params object in your code like so: browser.params.login.user

In your scenario, if you execute protractor in this manner:

protractor ... --params.login.user=abc --params.login.password=123

You would be able to utilize these variables within your code by accessing them like this:

browser.params.login.user and browser.params.login.password

Answer №2

One drawback of the accepted answer is that these variables will only be accessible when the browser is started. This means that if you plan to use them in configuration settings (such as creating if/else logic), it will not work as intended.

An Alternative Solution

Protractor operates as a node process, which means that any node process can be launched with custom node variables. While the process may differ for Windows systems (feel free to share if you know how), for Mac and other Linux/Unix operating systems, you can

Start Protractor with environment variables like so:

MY_VAR=Dev protractor tmp/config.js

This will make the variable available throughout your process:

console.log(process.env.MY_VAR)

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