fix: transpile @vue/composition-api (#391)

* means @nuxtjs/composition-api can truly be in `devDependencies`

src/index.ts

@@ -102,6 +102,10 @@ const compositionApiModule: Module<any> = function compositionApiModule() {
   this.options.build.transpile = this.options.build.transpile || []
   this.options.build.transpile.push('@nuxtjs/composition-api')
 
+  if (!this.nuxt.options.dev) {
+    this.options.build.transpile.push('@vue/composition-api')
+  }
+
   // Fake alias to prevent shadowing actual node_module
   this.options.alias['@nuxtjs/composition-api'] = entryFile
 

test/unit/ssr-ref.spec.ts

@@ -4,42 +4,6 @@
 import { ssrRef, globalPlugin } from '../../lib/entrypoint'
 import * as cAPI from '@vue/composition-api'
 
-jest.setTimeout(60000)
-
-import { setup, get } from '@nuxtjs/module-test-utils'
-import config from '../fixture/nuxt.config'
-
-let nuxt
-
-describe('ssrRef', () => {
-  beforeAll(async () => {
-    nuxt = (await setup(config)).nuxt
-  }, 60000)
-
-  afterAll(async () => {
-    await nuxt.close()
-  })
-
-  test('__NUXT__ contains correct data', async () => {
-    const homePage = await get('/')
-    expect(homePage.includes('"only SSR rendered"')).toBeFalsy()
-    expect(homePage.includes('"runs SSR or client-side"')).toBeFalsy()
-
-    const ssrRefPage = await get('/ssr-ref')
-    expect(ssrRefPage).toContain('"only SSR rendered"')
-    expect(ssrRefPage).toContain('"runs SSR or client-side"')
-
-    const noSetupPage = await get('/no-setup')
-    expect(noSetupPage).toContain('"prefetched async"')
-    expect(noSetupPage).toContain('"SSR overwritten"')
-    expect(noSetupPage.includes('"unchanged"')).toBeFalsy()
-
-    const rerenderedHomePage = await get('/')
-    expect(rerenderedHomePage.includes('"only SSR rendered"')).toBeFalsy()
-    expect(rerenderedHomePage.includes('"runs SSR or client-side"')).toBeFalsy()
-  })
-})
-
 describe('ssrRef reactivity', () => {
   let ssrContext: Record<string, any>