@vue/cli-plugin-unit-jest/presets/typescript-and-babel/jest-preset.js

unit-jest plugin for vue-cli

const deepmerge = require('deepmerge')
const defaultTsPreset = require('../typescript/jest-preset')

module.exports = deepmerge(
  defaultTsPreset,
  {
    globals: {
      'ts-jest': {
        babelConfig: true
      }
    }
  }
)