playwright-test/src/utils/inject-process.js

Run mocha, zora, uvu, tape and benchmark.js scripts inside real browsers with playwright.

// @ts-nocheck
// eslint-disable-next-line unicorn/prefer-module
const _process = require('process/browser')

const performance = globalThis.performance || {}
const performanceNow = performance.now || (() => Date.now())

// generate timestamp or delta
// see http://nodejs.org/api/process.html#process_process_hrtime
/**
 *
 * @param {number} previousTimestamp
 */
function hrtime(previousTimestamp) {
  const clocktime = performanceNow.call(performance) * 1e-3
  let seconds = Math.floor(clocktime)
  let nanoseconds = Math.floor((clocktime % 1) * 1e9)
  if (previousTimestamp) {
    seconds = seconds - previousTimestamp[0]
    nanoseconds = nanoseconds - previousTimestamp[1]
    if (nanoseconds < 0) {
      seconds--
      nanoseconds += 1e9
    }
  }
  return [seconds, nanoseconds]
}

const p = {
  ..._process,
  exit: (code = 0) => {
    const options = JSON.parse(process.env.PW_OPTIONS)
    if (code === 0) {
      if (options.mode === 'worker') {
        postMessage({
          pwRunEnded: true,
          pwRunFailed: false,
        })
      } else {
        globalThis.PW_TEST.end(false)
      }
    } else if (options.mode === 'worker') {
      postMessage({
        pwRunEnded: true,
        pwRunFailed: true,
      })
    } else {
      globalThis.PW_TEST.end(true)
    }
  },
  stdout: {
    write: (message) => {
      if (globalThis.PW_TEST_STDOUT_WRITE) {
        globalThis.PW_TEST_STDOUT_WRITE(message)
      } else {
        postMessage({ pwStdout: message })
      }
    },
    getColorDepth: () => 256,
    isTTY: true,
  },
  stderr: {
    write: (message) => {
      if (globalThis.PW_TEST_STDERR_WRITE) {
        globalThis.PW_TEST_STDERR_WRITE(message)
      } else {
        postMessage({ pwStderr: message })
      }
    },
    getColorDepth: () => 256,
    isTTY: true,
  },
  hrtime,
}

export const process = p
// https://github.com/ionic-team/rollup-plugin-node-polyfills