util.js

// @flow
import Vue from 'vue'

export function throwError (msg: string): void {
  throw new Error(`[vue-test-utils]: ${msg}`)
}

export function warn (msg: string): void {
  console.error(`[vue-test-utils]: ${msg}`)
}

const camelizeRE = /-(\w)/g
export const camelize = (str: string): string => {
  const camelizedStr = str.replace(
    camelizeRE,
    (_, c) => (c ? c.toUpperCase() : '')
  )
  return camelizedStr.charAt(0).toLowerCase() + camelizedStr.slice(1)
}

export const htmlTags = [
  'html', 'body', 'base', 'head', 'link', 'meta', 'style', 'title',
  'address', 'article', 'aside', 'footer', 'header', 'h1', 'h2', 'h3',
  'h4', 'h5', 'h6', 'hgroup', 'nav', 'section', 'div', 'dd', 'dl', 'dt',
  'figcaption', 'figure', 'picture', 'hr', 'img', 'li', 'main', 'ol',
  'p', 'pre', 'ul', 'a', 'b', 'abbr', 'bdi', 'bdo', 'br', 'cite', 'code',
  'data', 'dfn', 'em', 'i', 'kbd', 'mark', 'q', 'rp', 'rt', 'rtc', 'ruby',
  's', 'samp', 'small', 'span', 'strong', 'sub', 'sup', 'time',
  'u', 'var', 'wbr', 'area', 'audio', 'map', 'track', 'video',
  'embed', 'object', 'param', 'source', 'canvas', 'script',
  'noscript', 'del', 'ins', 'caption', 'col', 'colgroup', 'table',
  'thead', 'tbody', 'td', 'th', 'tr', 'button', 'datalist', 'fieldset',
  'form', 'input', 'label', 'legend', 'meter', 'optgroup', 'option',
  'output', 'progress', 'select', 'textarea', 'details', 'dialog', 'menu',
  'menuitem', 'summary', 'content', 'element', 'shadow', 'template',
  'blockquote', 'iframe', 'tfoot'
]

export const svgElements = [
  'svg', 'animate', 'circle', 'clippath', 'cursor', 'defs', 'desc', 'ellipse',
  'filter', 'font-face', 'foreignObject', 'g', 'glyph', 'image', 'line',
  'marker', 'mask', 'missing-glyph', 'path', 'pattern', 'polygon',
  'polyline', 'rect', 'switch', 'symbol', 'text', 'textpath', 'tspan', 'use',
  'view'
]

/**
 * Capitalize a string.
 */
export const capitalize = (str: string): string =>
  str.charAt(0).toUpperCase() + str.slice(1)

/**
 * Hyphenate a camelCase string.
 */
const hyphenateRE = /\B([A-Z])/g
export const hyphenate = (str: string): string =>
  str.replace(hyphenateRE, '-$1').toLowerCase()

export const vueVersion = Number(
  `${Vue.version.split('.')[0]}.${Vue.version.split('.')[1]}`
)