cypress/system-tests/projects/plugin-run-events/cypress.config.js

/* eslint-disable no-console */
const Promise = require('bluebird')

module.exports = {
  'fixturesFolder': false,
  'e2e': {
    'supportFile': false,
    setupNodeEvents (on, config) {
      on('before:run', (runDetails) => {
        const { specs, browser } = runDetails

        console.log('before:run:', specs[0].relative, browser.name)

        return Promise.delay(10).then(() => {
          return console.log('before:run is awaited')
        })
      })

      on('after:run', (results) => {
        const { totalTests, totalPassed, totalFailed } = results

        console.log('after:run:', { totalTests, totalPassed, totalFailed })

        return Promise.delay(10).then(() => {
          return console.log('after:run is awaited')
        })
      })

      on('before:spec', (spec) => {
        console.log('before:spec:', spec.relative)

        return Promise.delay(10).then(() => {
          return console.log('before:spec is awaited')
        })
      })

      on('after:spec', (spec, results) => {
        const { stats } = results
        const { tests, passes, failures } = stats

        console.log('spec:end:', spec.relative, { tests, passes, failures })

        return Promise.delay(10).then(() => {
          return console.log('after:spec is awaited')
        })
      })

      return config
    },
  },
}