elk/tests/content.test.ts

import type { Emoji } from 'masto'
import { describe, expect, it, vi } from 'vitest'
import { renderToString } from 'vue/server-renderer'
import { format } from 'prettier'
import { contentToVNode } from '~/composables/content'

describe('rich-content', () => {
  it('empty', async () => {
    const { formatted } = await render('')
    expect(formatted).toMatchSnapshot()
  })

  it('link + mention', async () => {
    // https://fosstodon.org/@ayo/109383002937620723
    const { formatted } = await render('<p>Happy 🤗 we’re now using <span class="h-card"><a href="https://mas.to/@vitest" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>vitest</span></a></span> (migrated from chai+mocha) <a href="https://github.com/ayoayco/astro-reactive-library/pull/203" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/ayoayco/astro-react</span><span class="invisible">ive-library/pull/203</span></a></p>')
    expect(formatted).toMatchSnapshot()
  })

  it('custom emoji', async () => {
    const { formatted } = await render('Daniel Roe :nuxt:', {
      nuxt: {
        shortcode: 'nuxt',
        url: 'https://media.mas.to/masto-public/cache/custom_emojis/images/000/288/667/original/c96ba3cb0e0e1eac.png',
        staticUrl: 'https://media.mas.to/masto-public/cache/custom_emojis/images/000/288/667/static/c96ba3cb0e0e1eac.png',
        visibleInPicker: true,
      },
    })
    expect(formatted).toMatchSnapshot()
  })

  it('code frame', async () => {
    // https://mas.to/@antfu/109396489827394721
    const { formatted } = await render('<p>Testing code block</p><p>```ts<br />import { useMouse, usePreferredDark } from &#39;@vueuse/core&#39;</p><p>// tracks mouse position<br />const { x, y } = useMouse()</p><p>// is the user prefers dark theme<br />const isDark = usePreferredDark()<br />```</p>')
    expect(formatted).toMatchSnapshot()
  })
})

async function render(content: string, emojis?: Record<string, Emoji>) {
  const vnode = contentToVNode(content, emojis)
  const html = (await renderToString(vnode))
    .replace(/<!--[\[\]]-->/g, '')
  const formatted = format(html, {
    parser: 'html',
  })

  return {
    vnode,
    html,
    formatted,
  }
}

// mocks
vi.mock('vue-router', () => {
  return {
    RouterLink: defineComponent((attrs) => {
      return () => h('a', attrs)
    }),
  }
})

vi.mock('../components/content/ContentCode.vue', () => {
  return {
    default: defineComponent({
      props: {
        code: {
          type: String,
          required: true,
        },
        lang: {
          type: String,
          required: true,
        },
      },
      setup(props) {
        const raw = computed(() => decodeURIComponent(props.code).replace(/&#39;/g, '\''))
        return () => h('pre', { lang: props.lang }, raw.value)
      },
    }),
  }
})