codeceptjs/lib/helper/testcafe/testcafe-utils.js

Supercharged End 2 End Testing Framework for NodeJS

const { ClientFunction } = require('testcafe')

const assert = require('assert')
const fs = require('fs')
const path = require('path')
const { getParamNames } = require('../../utils')

const createTestFile = () => {
  assert(global.output_dir, 'global.output_dir must be set')

  const testFile = path.join(global.output_dir, `${Date.now()}_test.js`)
  const testControllerHolderDir = __dirname.replace(/\\/g, '/')

  fs.writeFileSync(
    testFile,
    `import testControllerHolder from "${testControllerHolderDir}/testControllerHolder.js";\n\n
    fixture("fixture")\n
    test\n
    ("test", testControllerHolder.capture)`,
  )

  return testFile
}

// TODO Better error mapping (actual, expected)
const mapError = testcafeError => {
  // console.log('TODO map error better', JSON.stringify(testcafeError, null, 2));
  if (testcafeError.errMsg) {
    throw new Error(testcafeError.errMsg)
  }
  const errorInfo = `${testcafeError.callsite ? JSON.stringify(testcafeError.callsite) : ''} ${testcafeError.apiFnChain || JSON.stringify(testcafeError)}`
  throw new Error(`TestCafe Error: ${errorInfo}`)
}

function createClientFunction(func, args) {
  if (!args || !args.length) {
    return ClientFunction(func)
  }
  const paramNames = getParamNames(func)
  const dependencies = {}
  paramNames.forEach((param, i) => (dependencies[param] = args[i]))

  return ClientFunction(getFuncBody(func), { dependencies })
}

function getFuncBody(func) {
  let fnStr = func.toString()
  const arrowIndex = fnStr.indexOf('=>')
  if (arrowIndex >= 0) {
    fnStr = fnStr.slice(arrowIndex + 2)

    return eval(`() => ${fnStr}`)
  }
  // TODO: support general functions
}

module.exports = {
  createTestFile,
  mapError,
  createClientFunction,
}