test: migrate rspack wasm test to rstest (#11990)

* migrate rspack wasm test to rstest

Author: CPunisher

package.json

@@ -74,7 +74,7 @@
     "cross-env": "^10.1.0",
     "husky": "^9.1.7",
     "is-ci": "4.1.0",
-    "@rstest/core": "^0.6.1",
+    "@rstest/core": "^0.6.3",
     "jest": "29.7.0",
     "jest-cli": "29.7.0",
     "lint-staged": "^16.2.6",

packages/rspack-test-tools/src/case/hash.ts

@@ -98,8 +98,13 @@ async function check(env: ITestEnv, context: ITestContext, name: string) {
 	const stats = compiler.getStats();
 	const testConfig = context.getTestConfig();
 	if (!stats) {
-		env.expect(false);
-		return;
+		throw new Error(
+			"No stats found\n" +
+				context
+					.getError()
+					.map(e => e.stack)
+					.join("\n")
+		);
 	}
 	if (REG_ERROR_CASE.test(name)) {
 		env.expect(stats.hasErrors());

packages/rspack-test-tools/src/helper/setup-env.ts

@@ -20,9 +20,6 @@ if (process.env.RSTEST) {
 	global.__RSPACK_PATH__ ??= process.env.__RSPACK_PATH__;
 	global.__RSPACK_TEST_TOOLS_PATH__ ??= process.env.__RSPACK_TEST_TOOLS_PATH__;
 	global.__DEBUG__ ??= process.env.DEBUG === "test";
-} else {
-	// Compatible with wasm tests (lazyTestEnv)
-	global.rstest = jest;
 }
 
 if (process.env.ALTERNATIVE_SORT) {

packages/rspack-test-tools/src/test/creator.ts

@@ -44,7 +44,7 @@ export interface IBasicCaseCreatorOptions {
 	[key: string]: unknown;
 }
 
-const DEFAULT_MAX_CONCURRENT = 5;
+const DEFAULT_MAX_CONCURRENT = process.env.WASM ? 1 : 5;
 
 export class BasicCaseCreator {
 	protected currentConcurrent = 0;
@@ -88,7 +88,7 @@ export class BasicCaseCreator {
 			options
 		);
 		const concurrent = process.env.WASM
-			? false
+			? 1
 			: testConfig.concurrent || options.concurrent;
 		if (options.describe) {
 			if (run) {

packages/rspack/src/ChunkGraph.ts

@@ -10,7 +10,7 @@ Object.defineProperty(ChunkGraph.prototype, "getOrderedChunkModulesIterable", {
 	value(
 		this: ChunkGraph,
 		chunk: Chunk,
-		compareFn: (a: Module, b: Module) => number
+		compareFn: (_a: Module, _b: Module) => number
 	): Iterable<Module> {
 		const modules = this.getChunkModules(chunk);
 		modules.sort(compareFn);

pnpm-lock.yaml

@@ -10,7 +10,7 @@ const setupFilesAfterEnv = [
 const wasmConfig = process.env.WASM && {
 	setupFilesAfterEnv: [...setupFilesAfterEnv, "@rspack/test-tools/setup-wasm"],
 	testPathIgnorePatterns: [
-		// Skip because they reply on snapshots
+		// Skip because they rely on snapshots
 		"Diagnostics.test.js",
 		"Error.test.js",
 		"StatsAPI.test.js",

tests/rspack-test/jest.config.js

@@ -10,7 +10,6 @@
     "test": "cross-env RUST_BACKTRACE=full pnpm run --stream /^test:.*/",
     "testu": "pnpm run --stream /^test:.*/ -u",
     "test:rstest": "rstest",
-    "test:base": "cross-env node --no-warnings --expose-gc --max-old-space-size=8192 --experimental-vm-modules ../../node_modules/jest-cli/bin/jest --logHeapUsage --colors --config ./jest.config.js  --passWithNoTests",
     "test:hot": "cross-env RSPACK_HOT_TEST=true node --no-warnings --expose-gc --max-old-space-size=8192 --experimental-vm-modules ../../node_modules/@rstest/core/bin/rstest --config ./rstest.config.hot.ts --passWithNoTests"
   },
   "devDependencies": {
@@ -20,7 +19,7 @@
     "@rspack/plugin-preact-refresh": "1.1.4",
     "@rspack/plugin-react-refresh": "^1.5.2",
     "@rspack/test-tools": "workspace:*",
-    "@rstest/core": "^0.6.1",
+    "@rstest/core": "^0.6.3",
     "@swc/helpers": "0.5.17",
     "@swc/plugin-remove-console": "^10.0.0",
     "@types/babel__generator": "7.27.0",
@@ -45,6 +44,7 @@
     "lodash": "^4.17.21",
     "memfs": "4.48.1",
     "mini-svg-data-uri": "^1.4.4",
+    "node-polyfill-webpack-plugin": "^4.1.0",
     "postcss-loader": "^8.2.0",
     "postcss-pxtorem": "^6.1.0",
     "raw-loader": "^4.0.2",

tests/rspack-test/package.json

@@ -7,10 +7,39 @@ const setupFilesAfterEnv = [
 	"@rspack/test-tools/setup-expect",
 ];
 
+const wasmConfig = process.env.WASM && defineConfig({
+	setupFiles: [...setupFilesAfterEnv, "@rspack/test-tools/setup-wasm"],
+	exclude: [
+		// Skip because they rely on snapshots
+		"Diagnostics.test.js",
+		"Error.test.js",
+		"StatsAPI.test.js",
+		"StatsOutput.test.js",
+		// Skip because the loader can not be loaded in CI
+		"Hot*.test.js",
+
+		// Skip temporarily and should investigate in the future
+		"Cache.test.js",
+		"Compiler.test.js",
+		"MultiCompiler.test.js",
+		"Serial.test.js",
+		"Defaults.test.js",
+		"Example.test.js",
+		"Incremental-*.test.js",
+		"NativeWatcher*.test.js",
+	],
+	maxConcurrency: 1,
+	pool: {
+		maxWorkers: 1,
+		execArgv: ['--no-warnings', '--expose-gc', '--max-old-space-size=6144', '--experimental-vm-modules'],
+	}
+});
+
+
 export default defineConfig({
 	setupFiles: setupFilesAfterEnv,
 	testTimeout: process.env.CI ? 60000 : 30000,
-	include: process.env.WASM ? [] : [
+	include: [
 		"*.test.js",
 	],
 	slowTestThreshold: 5000,
@@ -25,6 +54,7 @@ export default defineConfig({
 	source: {
 		exclude: [root],
 	},
+	disableConsoleIntercept: true,
 	globals: true,
 	output: {
 		externals: [/.*/],
@@ -62,5 +92,6 @@ export default defineConfig({
 		__DEBUG__: process.env.DEBUG === "test" ? 'true' : 'false',
 	},
 	hideSkippedTests: true,
+	...(wasmConfig || {}),
 });
 

tests/rspack-test/rstest.config.ts

@@ -51,9 +51,5 @@ When the plugin's `name` option is set to `undefined`, the entry is treated as a
 This allows you to inject global runtime code, such as the dev server's HMR runtime or the initialization logic for module federation.
 
 ```js
-new rspack.EntryPlugin(
-  context,
-  './global-runtime.js',
-  { name: undefined }
-);
+new rspack.EntryPlugin(context, './global-runtime.js', { name: undefined });
 ```