Yarn berry compat

packages/wdio-cli/src/launcher.ts

@@ -1,5 +1,5 @@
 import exitHook from 'async-exit-hook'
-import { resolve } from 'import-meta-resolve'
+import { createRequire } from 'node:module'
 
 import logger from '@wdio/logger'
 import { validateConfig } from '@wdio/config'
@@ -13,6 +13,7 @@ import { runLauncherHook, runOnCompleteHook, runServiceHook, nodeVersion, type H
 import { TESTRUNNER_DEFAULTS, WORKER_GROUPLOGS_MESSAGES } from './constants.js'
 import type { RunCommandArguments } from './types.js'
 const log = logger('@wdio/cli:launcher')
+const require = createRequire(import.meta.url)
 
 interface Schedule {
     cid: number
@@ -179,7 +180,7 @@ class Launcher {
         /**
          * add tsx to process NODE_OPTIONS so it will be passed along the worker process
          */
-        const tsxPath = resolve('tsx', import.meta.url)
+        const tsxPath = require.resolve('tsx')
         if (!process.env.NODE_OPTIONS || !process.env.NODE_OPTIONS.includes(tsxPath)) {
             /**
              * The `--import` flag is only available in Node 20.6.0 / 18.19.0 and later.

packages/wdio-utils/src/utils.ts

@@ -244,6 +244,32 @@ export async function safeImport (name: string): Promise<Services.ServicePlugin
          * Only in Node.js environments
          */
         if (!globalThis.window) {
+            // For Yarn Berry compatibility, try direct import first
+            try {
+                const pkg = await import(/* @vite-ignore */name)
+                /**
+                 * CJS packages build with TS imported through an ESM context can end up being this:
+                 *
+                 * [Module: null prototype] {
+                 *   __esModule: true,
+                 *   default: {
+                 *       launcher: [class SmokeServiceLauncher],
+                 *       default: [class SmokeService]
+                 *   },
+                 *   launcher: [class SmokeServiceLauncher]
+                 * }
+                 *
+                 * In order to not have the testrunner ignore importing a service we should double check if
+                 * a nested default is given and return that.
+                 */
+                if (pkg.default && pkg.default.default) {
+                    return pkg.default
+                }
+                return pkg
+            } catch {
+                // Fallback to import-meta-resolve approach
+            }
+
             const { resolve } = await import('import-meta-resolve')
             try {
                 importPath = await resolve(name, import.meta.url)