With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.

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This pointed me in the right direction. thank you. The command ended up looking like: ```js
Cypress.Commands.add('login', () => {
  const data = {
    username: Cypress.env('TEST_USERNAME'),
    password: Cypress.env('TEST_USER_PASSWORD'),
  }
  cy.window().then((window) => {
    return window.nuxtApp.$auth.loginWith('login', { data })
  })
})
```

And I use it like: ```js
cy.login().then(() => {})
```