chore(webpack-test): make tests more future proof (#4758)

package.json

@@ -4,6 +4,7 @@
   "license": "MIT",
   "description": "A Fast Rust-based web bundler",
   "private": true,
+  "main": "./packages/rspack/dist/index.js",
   "scripts": {
     "x": "zx x.mjs",
     "dev": "pnpm --filter @rspack/cli run dev",

webpack-test/ConfigTestCases.template.js

@@ -59,7 +59,9 @@ const describeCases = config => {
 			stderr = captureStdio(process.stderr, true);
 		});
 		afterEach(() => {
-			stderr.restore();
+			if (stderr) {
+				stderr.restore();
+			}
 		});
 		jest.setTimeout(TIMEOUT);
 
@@ -88,10 +90,12 @@ const describeCases = config => {
 						const cacheDirectory = path.join(outBaseDir, ".cache", testSubPath);
 						let options, optionsArr, testConfig;
 						beforeAll(() => {
-							options = prepareOptions(
-								require(path.join(testDirectory, "webpack.config.js")),
-								{ testPath: outputDirectory }
-							);
+							expect(() => {
+								options = prepareOptions(
+									require(path.join(testDirectory, "webpack.config.js")),
+									{ testPath: outputDirectory }
+								);
+							}).not.toThrow();
 							optionsArr = [].concat(options);
 							optionsArr.forEach((options, idx) => {
 								if (!options.context) options.context = testDirectory;