lib.spec.ts — vite Source File

Source Code

import { describe, expect, test } from 'vitest'
import { isBuild, isServe, page, readFile, serverLogs } from '~utils'

describe.runIf(isBuild)('build', () => {
  test('es', async () => {
    expect(await page.textContent('.es')).toBe('It works')
  })

  test('umd', async () => {
    expect(await page.textContent('.umd')).toBe('It works')
    const code = readFile('dist/my-lib-custom-filename.umd.cjs')
    const noMinifyCode = readFile(
      'dist/nominify/my-lib-custom-filename.umd.cjs',
    )
    const namedCode = readFile('dist/named/my-lib-named.umd.cjs')
    // esbuild helpers are injected inside of the UMD wrapper
    expect(code).toMatch(/^\/\*[^*]*\*\/\s*\(function\(/)
    expect(noMinifyCode).toMatch(
      /^\/\*[^*]*\*\/\s*\(function\(global.+?function\smyLib\(/s,
    )
    expect(namedCode).toMatch(/^\(function\(/)
  })

  test('iife', async () => {
    expect(await page.textContent('.iife')).toBe('It works')
    const code = readFile('dist/my-lib-custom-filename.iife.js')
    const noMinifyCode = readFile(
      'dist/nominify/my-lib-custom-filename.iife.js',
    )
    const namedCode = readFile('dist/named/my-lib-named.iife.js')
    // esbuild helpers are injected inside of the IIFE wrapper
    expect(code).toMatch(/^\/\*[^*]*\*\/\s*var MyLib=\(function\(\)\{\s*/)
    expect(noMinifyCode).toMatch(
      /^\/\*[^*]*\*\/\s*var MyLib\s*=\s*\(function\(\)\s*\{\s*/,
    )
    expect(namedCode).toMatch(/^var MyLibNamed=\(function\([^()]+\)\{\s*/)
  })

  test('restrisct-helpers-injection', async () => {
    const code = readFile(
      'dist/helpers-injection/my-lib-custom-filename.iife.js',
    )
    expect(code).toMatch(
      `\\"use strict\\"; return (" + expressionSyntax + ").constructor;"`,
    )
  })

  test('Library mode does not include `preload`', async () => {
    await expect
      .poll(() => page.textContent('.dynamic-import-message'))
      .toMatch('hello vite')
    const code = readFile('dist/lib/dynamic-import-message.es.mjs')
    expect(code).not.toMatch('__vitePreload')

    // Test that library chunks are hashed
    expect(code).toMatch(/await import\("\.\/message-[-\w]{8}.js"\)/)
  })

  test('Library mode does not have any reference to pure CSS chunks', async () => {
    const code = readFile('dist/lib/dynamic-import-message.es.mjs')
// ... (82 more lines)