Nuxt/packages/nuxt3/test/auto-imports.test.ts

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import type { AutoImport } from '@nuxt/kit'
import { expect } from 'chai'
import { AutoImportContext, updateAutoImportContext } from '../src/auto-imports/context'
import { TransformPlugin } from '../src/auto-imports/transform'
describe('auto-imports:transform', () => {
const autoImports: AutoImport[] = [
{ name: 'ref', as: 'ref', from: 'vue' },
{ name: 'computed', as: 'computed', from: 'bar' }
]
const ctx = { autoImports, map: new Map() } as AutoImportContext
updateAutoImportContext(ctx)
const transformPlugin = TransformPlugin.raw(ctx, { framework: 'rollup' })
const transform = (code: string) => transformPlugin.transform.call({ error: null, warn: null }, code, '')
it('should correct inject', async () => {
expect(await transform('const a = ref(0)')).to.equal('import { ref } from \'vue\';const a = ref(0)')
expect(await transform('import { computed as ref } from "foo"; const a = ref(0)')).to.include('import { computed } from \'bar\';')
})
it('should ignore existing imported', async () => {
expect(await transform('import { ref } from "foo"; const a = ref(0)')).to.equal(null)
expect(await transform('import ref from "foo"; const a = ref(0)')).to.equal(null)
expect(await transform('import { z as ref } from "foo"; const a = ref(0)')).to.equal(null)
expect(await transform('let ref = () => {}; const a = ref(0)')).to.equal(null)
expect(await transform('let { ref } = Vue; const a = ref(0)')).to.equal(null)
expect(await transform('let [\ncomputed,\nref\n] = Vue; const a = ref(0); const b = ref(0)')).to.equal(null)
})
it('should ignore comments', async () => {
const result = await transform('// import { computed } from "foo"\n;const a = computed(0)')
expect(result).to.equal('import { computed } from \'bar\';// import { computed } from "foo"\n;const a = computed(0)')
})
})