(feat): allow wdio config to be in a sub directory

example/e2e/config/wdio.conf.ts

@@ -0,0 +1,8 @@
+import { config as baseConfig } from '../../wdio.conf.js';
+
+process.env.TEST = 'true';
+
+export const config = {
+    ...baseConfig,
+    specs: ['../*.spec.ts'],
+}

example/package.json

@@ -11,7 +11,7 @@
     "ci": "pnpm i && pnpm build && pnpm test",
     "clean": "pnpm clean:dist && rm -rf ./node_modules pnpm-lock.yaml ./all-logs",
     "clean:dist": "pnpx rimraf ./dist && mkdir -p ./dist",
-    "test": "wdio run ./wdio.conf.ts"
+    "test": "wdio run ./wdio.conf.ts && wdio run ./e2e/config/wdio.conf.ts"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^25.0.4",

package.json

@@ -97,7 +97,8 @@
     "debug": "^4.3.4",
     "electron-to-chromium": "^1.4.532",
     "find-versions": "^5.1.0",
-    "node-fetch": "^3.3.2"
+    "node-fetch": "^3.3.2",
+    "read-pkg-up": "^10.1.0"
   },
   "devDependencies": {
     "@eslint/js": "^8.50.0",

src/launcher.ts

@@ -1,6 +1,5 @@
-import fs from 'node:fs/promises';
-import path from 'node:path';
 import findVersions from 'find-versions';
+import { readPackageUp, type NormalizedReadResult } from 'read-pkg-up'
 import { SevereServiceError } from 'webdriverio';
 import { Services, Options, Capabilities } from '@wdio/types';
 
@@ -24,8 +23,12 @@ export default class ElectronLaunchService implements Services.ServiceInstance {
       : Object.values(capabilities).map((multiremoteOption) => multiremoteOption.capabilities);
 
     const caps = capsList.flatMap((cap) => getElectronCapabilities(cap) as WebDriver.Capabilities[]);
-    const pkgJSON = JSON.parse((await fs.readFile(path.join(this.#projectRoot, 'package.json'), 'utf-8')).toString());
-    const { dependencies, devDependencies } = pkgJSON;
+    const pkg = (
+      await readPackageUp({ cwd: this.#projectRoot }) ||
+      { packageJson: { dependencies: {}, devDependencies: {} } } as NormalizedReadResult
+    );
+
+    const { dependencies, devDependencies } = pkg.packageJson;
     const pkgElectronVersion = dependencies?.electron || devDependencies?.electron;
     const localElectronVersion = pkgElectronVersion ? findVersions(pkgElectronVersion, { loose: true })[0] : undefined;