test: remove mock hack of require.reesolve

ref: https://github.com/facebook/jest/pull/7687

packages/@vuepress/shared-utils/__tests__/moduleResolver.spec.ts

@@ -21,7 +21,7 @@ function loadMockModule (name: string) {
 }
 
 function resolveMockModule (name: string) {
-  return path.resolve(__dirname, `${MOCK_RELATIVE}/${name}`)
+  return require.resolve(path.resolve(__dirname, `${MOCK_RELATIVE}/${name}/`))
 }
 
 const fixturesDir = path.resolve(__dirname, 'fixtures')
@@ -110,12 +110,14 @@ describe('resolvePlugin', () => {
     expect(resolved.fromDep).toBe(false)
   })
 
-  test('from dep', () => {
+  describe('from dep', () => {
     const asserts = getBaseAsserts('plugin')
     for (const { input, output } of asserts) {
-      const [, name] = output
-      const resolved = resolvePlugin(input)
-      expect(resolved.entry).toBe(loadMockModule(name))
+      test(input, () => {
+        const [, name] = output
+        const resolved = resolvePlugin(input)
+        expect(resolved.entry).toBe(loadMockModule(name))
+      })
     }
   })
 
@@ -137,12 +139,14 @@ describe('resolvePlugin', () => {
 describe('resolveTheme', () => {
   const resolveTheme = themeResolver.resolve.bind(themeResolver)
 
-  test('from dep', () => {
+  describe('from dep', () => {
     const asserts = getBaseAsserts('theme')
     for (const { input, output } of asserts) {
-      const [, name] = output
-      const resolved = resolveTheme(input)
-      expect(resolved.entry).toBe(resolveMockModule(name))
+      test(input, () => {
+        const [, name] = output
+        const resolved = resolveTheme(input)
+        expect(resolved.entry).toBe(resolveMockModule(name))
+      })
     }
   })
 

packages/@vuepress/shared-utils/src/moduleLoader.ts

@@ -1,8 +1,6 @@
 // Midified from https://github.com/vuejs/vue-cli/blob/dev/packages/@0vue/cli-shared-utils/lib/module.js
 
 import semver from 'semver'
-import path from 'upath'
-import fs from 'fs-extra'
 import env from './env'
 
 function resolveFallback (request: string, options: { paths: string[] }) {
@@ -40,15 +38,9 @@ const resolve = semver.satisfies(process.version, '>=10.0.0')
 
 export function resolveModule (request: string, context: string): string {
   let resolvedPath
-  // TODO
-  // Temporary workaround for jest cannot resolve module path from '__mocks__'
-  // when using 'require.resolve'.
-  if (env.isTest && request !== '@vuepress/theme-default') {
-    resolvedPath = path.resolve(__dirname, '../../../../__mocks__', request)
-    if (!fs.existsSync(`${resolvedPath}.js`) && !fs.existsSync(`${resolvedPath}/index.js`)) {
-      throw new Error(`Cannot find module '${request}'`)
-    }
-    return resolvedPath
+
+  if (env.isTest) {
+    return require.resolve(request)
   }
 
   // module.paths is for globally install packages.