uniswap-interface-uncensored/cypress/support/e2e.ts

// ***********************************************************
// This file is processed and loaded automatically before your test files.
//
// You can read more here:
// https://on.cypress.io/configuration
// ***********************************************************

// Import commands.ts using ES2015 syntax:
import '@cypress/code-coverage/support'

import assert from 'assert'

import { FeatureFlag } from '../../src/featureFlags/flags/featureFlags'
import { injected } from './ethereum'

declare global {
  // eslint-disable-next-line @typescript-eslint/no-namespace
  namespace Cypress {
    interface ApplicationWindow {
      ethereum: typeof injected
    }
    interface VisitOptions {
      serviceWorker?: true
      featureFlags?: Array<FeatureFlag>
      selectedWallet?: string
      noWallet?: boolean
    }
  }
}

// sets up the injected provider to be a mock ethereum provider with the given mnemonic/index
// eslint-disable-next-line no-undef
Cypress.Commands.overwrite(
  'visit',
  (original, url: string | Partial<Cypress.VisitOptions>, options?: Partial<Cypress.VisitOptions>) => {
    assert(typeof url === 'string')

    cy.intercept('/service-worker.js', options?.serviceWorker ? undefined : { statusCode: 404 }).then(() => {
      original({
        ...options,
        url:
          (url.startsWith('/') && url.length > 2 && !url.startsWith('/#') ? `/#${url}` : url) +
          `${url.includes('?') ? '&' : '?'}chain=goerli`,
        onBeforeLoad(win) {
          options?.onBeforeLoad?.(win)
          win.localStorage.clear()

          const userState = {
            selectedWallet: options?.noWallet !== true ? options?.selectedWallet || 'INJECTED' : undefined,
            fiatOnrampDismissed: true,
          }
          win.localStorage.setItem('redux_localstorage_simple_user', JSON.stringify(userState))

          if (options?.featureFlags) {
            const featureFlags = options.featureFlags.reduce(
              (flags, flag) => ({
                ...flags,
                [flag]: 'enabled',
              }),
              {}
            )
            win.localStorage.setItem('featureFlags', JSON.stringify(featureFlags))
          }

          win.ethereum = injected
        },
      })
    })
  }
)

beforeEach(() => {
  // Infura security policies are based on Origin headers.
  // These are stripped by cypress because chromeWebSecurity === false; this adds them back in.
  cy.intercept(/infura.io/, (res) => {
    res.headers['origin'] = 'http://localhost:3000'
    res.alias = res.body.method
    res.continue()
  })

  // Graphql security policies are based on Origin headers.
  // These are stripped by cypress because chromeWebSecurity === false; this adds them back in.
  cy.intercept('https://api.uniswap.org/v1/graphql', (res) => {
    res.headers['origin'] = 'https://app.uniswap.org'
    res.continue()
  })
  cy.intercept('https://beta.api.uniswap.org/v1/graphql', (res) => {
    res.headers['origin'] = 'https://app.uniswap.org'
    res.continue()
  })
})

Cypress.on('uncaught:exception', () => {
  // returning false here prevents Cypress from failing the test
  return false
})