feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 744 insertions, 0 deletions

diff --git a/vanilla/node_modules/vitest/dist/chunks/vm.D3epNOPZ.js b/vanilla/node_modules/vitest/dist/chunks/vm.D3epNOPZ.js
new file mode 100644
index 0000000..6820f9e
--- /dev/null
+++ b/vanilla/node_modules/vitest/dist/chunks/vm.D3epNOPZ.js
@@ -0,0 +1,744 @@
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import vm, { isContext, runInContext } from 'node:vm';
+import { dirname, basename, extname, normalize, resolve } from 'pathe';
+import { l as loadEnvironment, e as emitModuleRunner } from './init.B6MLFIaN.js';
+import { distDir } from '../path.js';
+import { createCustomConsole } from './console.Cf-YriPC.js';
+import fs from 'node:fs';
+import { createRequire, Module, isBuiltin } from 'node:module';
+import { toArray, isBareImport } from '@vitest/utils/helpers';
+import { findNearestPackageData } from '@vitest/utils/resolver';
+import { dirname as dirname$1 } from 'node:path';
+import { CSS_LANGS_RE, KNOWN_ASSET_RE } from '@vitest/utils/constants';
+import { getDefaultRequestStubs } from '../module-evaluator.js';
+import { s as startVitestModuleRunner, c as createNodeImportMeta, a as VITEST_VM_CONTEXT_SYMBOL } from './startModuleRunner.DEj0jb3e.js';
+import { p as provideWorkerState } from './utils.DvEY5TfP.js';
+
+function interopCommonJsModule(interopDefault, mod) {
+	if (isPrimitive(mod) || Array.isArray(mod) || mod instanceof Promise) return {
+		keys: [],
+		moduleExports: {},
+		defaultExport: mod
+	};
+	if (interopDefault !== false && "__esModule" in mod && !isPrimitive(mod.default)) {
+		const defaultKets = Object.keys(mod.default);
+		const moduleKeys = Object.keys(mod);
+		const allKeys = new Set([...defaultKets, ...moduleKeys]);
+		allKeys.delete("default");
+		return {
+			keys: Array.from(allKeys),
+			moduleExports: new Proxy(mod, { get(mod, prop) {
+				return mod[prop] ?? mod.default?.[prop];
+			} }),
+			defaultExport: mod
+		};
+	}
+	return {
+		keys: Object.keys(mod).filter((key) => key !== "default"),
+		moduleExports: mod,
+		defaultExport: mod
+	};
+}
+function isPrimitive(obj) {
+	return !(obj != null && (typeof obj === "object" || typeof obj === "function"));
+}
+const SyntheticModule = vm.SyntheticModule;
+const SourceTextModule = vm.SourceTextModule;
+
+const _require = createRequire(import.meta.url);
+const requiresCache = /* @__PURE__ */ new WeakMap();
+class CommonjsExecutor {
+	context;
+	requireCache = /* @__PURE__ */ new Map();
+	publicRequireCache = this.createProxyCache();
+	moduleCache = /* @__PURE__ */ new Map();
+	builtinCache = Object.create(null);
+	extensions = Object.create(null);
+	fs;
+	Module;
+	interopDefault;
+	constructor(options) {
+		this.context = options.context;
+		this.fs = options.fileMap;
+		this.interopDefault = options.interopDefault;
+		const primitives = vm.runInContext("({ Object, Array, Error })", this.context);
+		// eslint-disable-next-line ts/no-this-alias
+		const executor = this;
+		this.Module = class Module$1 {
+			exports;
+			isPreloading = false;
+			id;
+			filename;
+			loaded;
+			parent;
+			children = [];
+			path;
+			paths = [];
+			constructor(id = "", parent) {
+				this.exports = primitives.Object.create(Object.prototype);
+				// in our case the path should always be resolved already
+				this.path = dirname(id);
+				this.id = id;
+				this.filename = id;
+				this.loaded = false;
+				this.parent = parent;
+			}
+			get require() {
+				const require = requiresCache.get(this);
+				if (require) return require;
+				const _require = Module$1.createRequire(this.id);
+				requiresCache.set(this, _require);
+				return _require;
+			}
+			static getSourceMapsSupport = () => ({
+				enabled: false,
+				nodeModules: false,
+				generatedCode: false
+			});
+			static setSourceMapsSupport = () => {
+				// noop
+			};
+			static register = () => {
+				throw new Error(`[vitest] "register" is not available when running in Vitest.`);
+			};
+			static registerHooks = () => {
+				throw new Error(`[vitest] "registerHooks" is not available when running in Vitest.`);
+			};
+			_compile(code, filename) {
+				const cjsModule = Module$1.wrap(code);
+				const script = new vm.Script(cjsModule, {
+					filename,
+					importModuleDynamically: options.importModuleDynamically
+				});
+				// @ts-expect-error mark script with current identifier
+				script.identifier = filename;
+				const fn = script.runInContext(executor.context);
+				const __dirname = dirname(filename);
+				executor.requireCache.set(filename, this);
+				try {
+					fn(this.exports, this.require, this, filename, __dirname);
+					return this.exports;
+				} finally {
+					this.loaded = true;
+				}
+			}
+			// exposed for external use, Node.js does the opposite
+			static _load = (request, parent, _isMain) => {
+				return Module$1.createRequire(parent?.filename ?? request)(request);
+			};
+			static wrap = (script) => {
+				return Module$1.wrapper[0] + script + Module$1.wrapper[1];
+			};
+			static wrapper = new primitives.Array("(function (exports, require, module, __filename, __dirname) { ", "\n});");
+			static builtinModules = Module.builtinModules;
+			static findSourceMap = Module.findSourceMap;
+			static SourceMap = Module.SourceMap;
+			static syncBuiltinESMExports = Module.syncBuiltinESMExports;
+			static _cache = executor.publicRequireCache;
+			static _extensions = executor.extensions;
+			static createRequire = (filename) => {
+				return executor.createRequire(filename);
+			};
+			static runMain = () => {
+				throw new primitives.Error("[vitest] \"runMain\" is not implemented.");
+			};
+			// @ts-expect-error not typed
+			static _resolveFilename = Module._resolveFilename;
+			// @ts-expect-error not typed
+			static _findPath = Module._findPath;
+			// @ts-expect-error not typed
+			static _initPaths = Module._initPaths;
+			// @ts-expect-error not typed
+			static _preloadModules = Module._preloadModules;
+			// @ts-expect-error not typed
+			static _resolveLookupPaths = Module._resolveLookupPaths;
+			// @ts-expect-error not typed
+			static globalPaths = Module.globalPaths;
+			static isBuiltin = Module.isBuiltin;
+			static constants = Module.constants;
+			static enableCompileCache = Module.enableCompileCache;
+			static getCompileCacheDir = Module.getCompileCacheDir;
+			static flushCompileCache = Module.flushCompileCache;
+			static stripTypeScriptTypes = Module.stripTypeScriptTypes;
+			static findPackageJSON = Module.findPackageJSON;
+			static Module = Module$1;
+		};
+		this.extensions[".js"] = this.requireJs;
+		this.extensions[".json"] = this.requireJson;
+	}
+	requireJs = (m, filename) => {
+		const content = this.fs.readFile(filename);
+		m._compile(content, filename);
+	};
+	requireJson = (m, filename) => {
+		const code = this.fs.readFile(filename);
+		m.exports = JSON.parse(code);
+	};
+	createRequire = (filename) => {
+		const _require = createRequire(filename);
+		const require = ((id) => {
+			const resolved = _require.resolve(id);
+			if (extname(resolved) === ".node" || isBuiltin(resolved)) return this.requireCoreModule(resolved);
+			const module = new this.Module(resolved);
+			return this.loadCommonJSModule(module, resolved);
+		});
+		require.resolve = _require.resolve;
+		Object.defineProperty(require, "extensions", {
+			get: () => this.extensions,
+			set: () => {},
+			configurable: true
+		});
+		require.main = void 0;
+		require.cache = this.publicRequireCache;
+		return require;
+	};
+	createProxyCache() {
+		return new Proxy(Object.create(null), {
+			defineProperty: () => true,
+			deleteProperty: () => true,
+			set: () => true,
+			get: (_, key) => this.requireCache.get(key),
+			has: (_, key) => this.requireCache.has(key),
+			ownKeys: () => Array.from(this.requireCache.keys()),
+			getOwnPropertyDescriptor() {
+				return {
+					configurable: true,
+					enumerable: true
+				};
+			}
+		});
+	}
+	// very naive implementation for Node.js require
+	loadCommonJSModule(module, filename) {
+		const cached = this.requireCache.get(filename);
+		if (cached) return cached.exports;
+		const extension = this.findLongestRegisteredExtension(filename);
+		(this.extensions[extension] || this.extensions[".js"])(module, filename);
+		return module.exports;
+	}
+	findLongestRegisteredExtension(filename) {
+		const name = basename(filename);
+		let currentExtension;
+		let index;
+		let startIndex = 0;
+		// eslint-disable-next-line no-cond-assign
+		while ((index = name.indexOf(".", startIndex)) !== -1) {
+			startIndex = index + 1;
+			if (index === 0) continue;
+			currentExtension = name.slice(index);
+			if (this.extensions[currentExtension]) return currentExtension;
+		}
+		return ".js";
+	}
+	getCoreSyntheticModule(identifier) {
+		if (this.moduleCache.has(identifier)) return this.moduleCache.get(identifier);
+		const exports$1 = this.require(identifier);
+		const keys = Object.keys(exports$1);
+		const module = new SyntheticModule([...keys, "default"], () => {
+			for (const key of keys) module.setExport(key, exports$1[key]);
+			module.setExport("default", exports$1);
+		}, {
+			context: this.context,
+			identifier
+		});
+		this.moduleCache.set(identifier, module);
+		return module;
+	}
+	getCjsSyntheticModule(path, identifier) {
+		if (this.moduleCache.has(identifier)) return this.moduleCache.get(identifier);
+		const exports$1 = this.require(path);
+		// TODO: technically module should be parsed to find static exports, implement for strict mode in #2854
+		const { keys, moduleExports, defaultExport } = interopCommonJsModule(this.interopDefault, exports$1);
+		const module = new SyntheticModule([...keys, "default"], function() {
+			for (const key of keys) this.setExport(key, moduleExports[key]);
+			this.setExport("default", defaultExport);
+		}, {
+			context: this.context,
+			identifier
+		});
+		this.moduleCache.set(identifier, module);
+		return module;
+	}
+	// TODO: use this in strict mode, when available in #2854
+	// private _getNamedCjsExports(path: string): Set<string> {
+	//   const cachedNamedExports = this.cjsNamedExportsMap.get(path)
+	//   if (cachedNamedExports) {
+	//     return cachedNamedExports
+	//   }
+	//   if (extname(path) === '.node') {
+	//     const moduleExports = this.require(path)
+	//     const namedExports = new Set(Object.keys(moduleExports))
+	//     this.cjsNamedExportsMap.set(path, namedExports)
+	//     return namedExports
+	//   }
+	//   const code = this.fs.readFile(path)
+	//   const { exports, reexports } = parseCjs(code, path)
+	//   const namedExports = new Set(exports)
+	//   this.cjsNamedExportsMap.set(path, namedExports)
+	//   for (const reexport of reexports) {
+	//     if (isNodeBuiltin(reexport)) {
+	//       const exports = this.require(reexport)
+	//       if (exports !== null && typeof exports === 'object') {
+	//         for (const e of Object.keys(exports)) {
+	//           namedExports.add(e)
+	//         }
+	//       }
+	//     }
+	//     else {
+	//       const require = this.createRequire(path)
+	//       const resolved = require.resolve(reexport)
+	//       const exports = this._getNamedCjsExports(resolved)
+	//       for (const e of exports) {
+	//         namedExports.add(e)
+	//       }
+	//     }
+	//   }
+	//   return namedExports
+	// }
+	require(identifier) {
+		if (extname(identifier) === ".node" || isBuiltin(identifier)) return this.requireCoreModule(identifier);
+		const module = new this.Module(identifier);
+		return this.loadCommonJSModule(module, identifier);
+	}
+	requireCoreModule(identifier) {
+		const normalized = identifier.replace(/^node:/, "");
+		if (this.builtinCache[normalized]) return this.builtinCache[normalized].exports;
+		const moduleExports = _require(identifier);
+		if (identifier === "node:module" || identifier === "module") {
+			const module = new this.Module("/module.js");
+			module.exports = this.Module;
+			this.builtinCache[normalized] = module;
+			return module.exports;
+		}
+		this.builtinCache[normalized] = _require.cache[normalized];
+		// TODO: should we wrap module to rethrow context errors?
+		return moduleExports;
+	}
+}
+
+const dataURIRegex = /^data:(?<mime>text\/javascript|application\/json|application\/wasm)(?:;(?<encoding>charset=utf-8|base64))?,(?<code>.*)$/;
+class EsmExecutor {
+	moduleCache = /* @__PURE__ */ new Map();
+	esmLinkMap = /* @__PURE__ */ new WeakMap();
+	context;
+	#httpIp = IPnumber("127.0.0.0");
+	constructor(executor, options) {
+		this.executor = executor;
+		this.context = options.context;
+	}
+	async evaluateModule(m) {
+		if (m.status === "unlinked") this.esmLinkMap.set(m, m.link((identifier, referencer) => this.executor.resolveModule(identifier, referencer.identifier)));
+		await this.esmLinkMap.get(m);
+		if (m.status === "linked") await m.evaluate();
+		return m;
+	}
+	async createEsModule(fileURL, getCode) {
+		const cached = this.moduleCache.get(fileURL);
+		if (cached) return cached;
+		const promise = this.loadEsModule(fileURL, getCode);
+		this.moduleCache.set(fileURL, promise);
+		return promise;
+	}
+	async loadEsModule(fileURL, getCode) {
+		const code = await getCode();
+		// TODO: should not be allowed in strict mode, implement in #2854
+		if (fileURL.endsWith(".json")) {
+			const m = new SyntheticModule(["default"], function() {
+				const result = JSON.parse(code);
+				this.setExport("default", result);
+			});
+			this.moduleCache.set(fileURL, m);
+			return m;
+		}
+		const m = new SourceTextModule(code, {
+			identifier: fileURL,
+			context: this.context,
+			importModuleDynamically: this.executor.importModuleDynamically,
+			initializeImportMeta: (meta, mod) => {
+				meta.url = mod.identifier;
+				if (mod.identifier.startsWith("file:")) {
+					const filename = fileURLToPath(mod.identifier);
+					meta.filename = filename;
+					meta.dirname = dirname$1(filename);
+				}
+				meta.resolve = (specifier, importer) => {
+					return this.executor.resolve(specifier, importer != null ? importer.toString() : mod.identifier);
+				};
+			}
+		});
+		this.moduleCache.set(fileURL, m);
+		return m;
+	}
+	async createWebAssemblyModule(fileUrl, getCode) {
+		const cached = this.moduleCache.get(fileUrl);
+		if (cached) return cached;
+		const m = this.loadWebAssemblyModule(getCode(), fileUrl);
+		this.moduleCache.set(fileUrl, m);
+		return m;
+	}
+	async createNetworkModule(fileUrl) {
+		// https://nodejs.org/api/esm.html#https-and-http-imports
+		if (fileUrl.startsWith("http:")) {
+			const url = new URL(fileUrl);
+			if (url.hostname !== "localhost" && url.hostname !== "::1" && (IPnumber(url.hostname) & IPmask(8)) !== this.#httpIp) throw new Error(
+				// we don't know the importer, so it's undefined (the same happens in --pool=threads)
+				`import of '${fileUrl}' by undefined is not supported: http can only be used to load local resources (use https instead).`
+			);
+		}
+		return this.createEsModule(fileUrl, () => fetch(fileUrl).then((r) => r.text()));
+	}
+	async loadWebAssemblyModule(source, identifier) {
+		const cached = this.moduleCache.get(identifier);
+		if (cached) return cached;
+		const wasmModule = await WebAssembly.compile(source);
+		const exports$1 = WebAssembly.Module.exports(wasmModule);
+		const imports = WebAssembly.Module.imports(wasmModule);
+		const moduleLookup = {};
+		for (const { module } of imports) if (moduleLookup[module] === void 0) moduleLookup[module] = await this.executor.resolveModule(module, identifier);
+		const evaluateModule = (module) => this.evaluateModule(module);
+		return new SyntheticModule(exports$1.map(({ name }) => name), async function() {
+			const importsObject = {};
+			for (const { module, name } of imports) {
+				if (!importsObject[module]) importsObject[module] = {};
+				await evaluateModule(moduleLookup[module]);
+				importsObject[module][name] = moduleLookup[module].namespace[name];
+			}
+			const wasmInstance = new WebAssembly.Instance(wasmModule, importsObject);
+			for (const { name } of exports$1) this.setExport(name, wasmInstance.exports[name]);
+		}, {
+			context: this.context,
+			identifier
+		});
+	}
+	cacheModule(identifier, module) {
+		this.moduleCache.set(identifier, module);
+	}
+	resolveCachedModule(identifier) {
+		return this.moduleCache.get(identifier);
+	}
+	async createDataModule(identifier) {
+		const cached = this.moduleCache.get(identifier);
+		if (cached) return cached;
+		const match = identifier.match(dataURIRegex);
+		if (!match || !match.groups) throw new Error("Invalid data URI");
+		const mime = match.groups.mime;
+		const encoding = match.groups.encoding;
+		if (mime === "application/wasm") {
+			if (!encoding) throw new Error("Missing data URI encoding");
+			if (encoding !== "base64") throw new Error(`Invalid data URI encoding: ${encoding}`);
+			const module = this.loadWebAssemblyModule(Buffer.from(match.groups.code, "base64"), identifier);
+			this.moduleCache.set(identifier, module);
+			return module;
+		}
+		let code = match.groups.code;
+		if (!encoding || encoding === "charset=utf-8") code = decodeURIComponent(code);
+		else if (encoding === "base64") code = Buffer.from(code, "base64").toString();
+		else throw new Error(`Invalid data URI encoding: ${encoding}`);
+		if (mime === "application/json") {
+			const module = new SyntheticModule(["default"], function() {
+				const obj = JSON.parse(code);
+				this.setExport("default", obj);
+			}, {
+				context: this.context,
+				identifier
+			});
+			this.moduleCache.set(identifier, module);
+			return module;
+		}
+		return this.createEsModule(identifier, () => code);
+	}
+}
+function IPnumber(address) {
+	const ip = address.match(/^(\d+)\.(\d+)\.(\d+)\.(\d+)$/);
+	if (ip) return (+ip[1] << 24) + (+ip[2] << 16) + (+ip[3] << 8) + +ip[4];
+	throw new Error(`Expected IP address, received ${address}`);
+}
+function IPmask(maskSize) {
+	return -1 << 32 - maskSize;
+}
+
+const CLIENT_ID = "/@vite/client";
+const CLIENT_FILE = pathToFileURL(CLIENT_ID).href;
+class ViteExecutor {
+	esm;
+	constructor(options) {
+		this.options = options;
+		this.esm = options.esmExecutor;
+	}
+	resolve = (identifier) => {
+		if (identifier === CLIENT_ID) return identifier;
+	};
+	get workerState() {
+		return this.options.context.__vitest_worker__;
+	}
+	async createViteModule(fileUrl) {
+		if (fileUrl === CLIENT_FILE || fileUrl === CLIENT_ID) return this.createViteClientModule();
+		const cached = this.esm.resolveCachedModule(fileUrl);
+		if (cached) return cached;
+		return this.esm.createEsModule(fileUrl, async () => {
+			try {
+				const result = await this.options.transform(fileUrl);
+				if (result.code) return result.code;
+			} catch (cause) {
+				// rethrow vite error if it cannot load the module because it's not resolved
+				if (typeof cause === "object" && cause.code === "ERR_LOAD_URL" || typeof cause?.message === "string" && cause.message.includes("Failed to load url")) {
+					const error = new Error(`Cannot find module '${fileUrl}'`, { cause });
+					error.code = "ERR_MODULE_NOT_FOUND";
+					throw error;
+				}
+			}
+			throw new Error(`[vitest] Failed to transform ${fileUrl}. Does the file exist?`);
+		});
+	}
+	createViteClientModule() {
+		const identifier = CLIENT_ID;
+		const cached = this.esm.resolveCachedModule(identifier);
+		if (cached) return cached;
+		const stub = this.options.viteClientModule;
+		const moduleKeys = Object.keys(stub);
+		const module = new SyntheticModule(moduleKeys, function() {
+			moduleKeys.forEach((key) => {
+				this.setExport(key, stub[key]);
+			});
+		}, {
+			context: this.options.context,
+			identifier
+		});
+		this.esm.cacheModule(identifier, module);
+		return module;
+	}
+	canResolve = (fileUrl) => {
+		if (fileUrl === CLIENT_FILE) return true;
+		const config = this.workerState.config.deps?.web || {};
+		const [modulePath] = fileUrl.split("?");
+		if (config.transformCss && CSS_LANGS_RE.test(modulePath)) return true;
+		if (config.transformAssets && KNOWN_ASSET_RE.test(modulePath)) return true;
+		if (toArray(config.transformGlobPattern).some((pattern) => pattern.test(modulePath))) return true;
+		return false;
+	};
+}
+
+const { existsSync } = fs;
+// always defined when we use vm pool
+const nativeResolve = import.meta.resolve;
+// TODO: improve Node.js strict mode support in #2854
+class ExternalModulesExecutor {
+	cjs;
+	esm;
+	vite;
+	context;
+	fs;
+	resolvers = [];
+	#networkSupported = null;
+	constructor(options) {
+		this.options = options;
+		this.context = options.context;
+		this.fs = options.fileMap;
+		this.esm = new EsmExecutor(this, { context: this.context });
+		this.cjs = new CommonjsExecutor({
+			context: this.context,
+			importModuleDynamically: this.importModuleDynamically,
+			fileMap: options.fileMap,
+			interopDefault: options.interopDefault
+		});
+		this.vite = new ViteExecutor({
+			esmExecutor: this.esm,
+			context: this.context,
+			transform: options.transform,
+			viteClientModule: options.viteClientModule
+		});
+		this.resolvers = [this.vite.resolve];
+	}
+	async import(identifier) {
+		const module = await this.createModule(identifier);
+		await this.esm.evaluateModule(module);
+		return module.namespace;
+	}
+	require(identifier) {
+		return this.cjs.require(identifier);
+	}
+	createRequire(identifier) {
+		return this.cjs.createRequire(identifier);
+	}
+	// dynamic import can be used in both ESM and CJS, so we have it in the executor
+	importModuleDynamically = async (specifier, referencer) => {
+		const module = await this.resolveModule(specifier, referencer.identifier);
+		return await this.esm.evaluateModule(module);
+	};
+	resolveModule = async (specifier, referencer) => {
+		let identifier = this.resolve(specifier, referencer);
+		if (identifier instanceof Promise) identifier = await identifier;
+		return await this.createModule(identifier);
+	};
+	resolve(specifier, parent) {
+		for (const resolver of this.resolvers) {
+			const id = resolver(specifier, parent);
+			if (id) return id;
+		}
+		// import.meta.resolve can be asynchronous in older +18 Node versions
+		return nativeResolve(specifier, parent);
+	}
+	getModuleInformation(identifier) {
+		if (identifier.startsWith("data:")) return {
+			type: "data",
+			url: identifier,
+			path: identifier
+		};
+		const extension = extname(identifier);
+		if (extension === ".node" || isBuiltin(identifier)) return {
+			type: "builtin",
+			url: identifier,
+			path: identifier
+		};
+		if (this.isNetworkSupported && (identifier.startsWith("http:") || identifier.startsWith("https:"))) return {
+			type: "network",
+			url: identifier,
+			path: identifier
+		};
+		const isFileUrl = identifier.startsWith("file://");
+		const pathUrl = isFileUrl ? fileURLToPath(identifier.split("?")[0]) : identifier;
+		const fileUrl = isFileUrl ? identifier : pathToFileURL(pathUrl).toString();
+		let type;
+		if (this.vite.canResolve(fileUrl)) type = "vite";
+		else if (extension === ".mjs") type = "module";
+		else if (extension === ".cjs") type = "commonjs";
+		else if (extension === ".wasm")
+ // still experimental on NodeJS --experimental-wasm-modules
+		// cf. ESM_FILE_FORMAT(url) in https://nodejs.org/docs/latest-v20.x/api/esm.html#resolution-algorithm
+		type = "wasm";
+		else type = findNearestPackageData(normalize(pathUrl)).type === "module" ? "module" : "commonjs";
+		return {
+			type,
+			path: pathUrl,
+			url: fileUrl
+		};
+	}
+	createModule(identifier) {
+		const { type, url, path } = this.getModuleInformation(identifier);
+		// create ERR_MODULE_NOT_FOUND on our own since latest NodeJS's import.meta.resolve doesn't throw on non-existing namespace or path
+		// https://github.com/nodejs/node/pull/49038
+		if ((type === "module" || type === "commonjs" || type === "wasm") && !existsSync(path)) {
+			const error = /* @__PURE__ */ new Error(`Cannot find ${isBareImport(path) ? "package" : "module"} '${path}'`);
+			error.code = "ERR_MODULE_NOT_FOUND";
+			throw error;
+		}
+		switch (type) {
+			case "data": return this.esm.createDataModule(identifier);
+			case "builtin": return this.cjs.getCoreSyntheticModule(identifier);
+			case "vite": return this.vite.createViteModule(url);
+			case "wasm": return this.esm.createWebAssemblyModule(url, () => this.fs.readBuffer(path));
+			case "module": return this.esm.createEsModule(url, () => this.fs.readFileAsync(path));
+			case "commonjs": return this.cjs.getCjsSyntheticModule(path, identifier);
+			case "network": return this.esm.createNetworkModule(url);
+			default: return type;
+		}
+	}
+	get isNetworkSupported() {
+		if (this.#networkSupported == null) if (process.execArgv.includes("--experimental-network-imports")) this.#networkSupported = true;
+		else if (process.env.NODE_OPTIONS?.includes("--experimental-network-imports")) this.#networkSupported = true;
+		else this.#networkSupported = false;
+		return this.#networkSupported;
+	}
+}
+
+const { promises, readFileSync } = fs;
+class FileMap {
+	fsCache = /* @__PURE__ */ new Map();
+	fsBufferCache = /* @__PURE__ */ new Map();
+	async readFileAsync(path) {
+		const cached = this.fsCache.get(path);
+		if (cached != null) return cached;
+		const source = await promises.readFile(path, "utf-8");
+		this.fsCache.set(path, source);
+		return source;
+	}
+	readFile(path) {
+		const cached = this.fsCache.get(path);
+		if (cached != null) return cached;
+		const source = readFileSync(path, "utf-8");
+		this.fsCache.set(path, source);
+		return source;
+	}
+	readBuffer(path) {
+		const cached = this.fsBufferCache.get(path);
+		if (cached != null) return cached;
+		const buffer = readFileSync(path);
+		this.fsBufferCache.set(path, buffer);
+		return buffer;
+	}
+}
+
+const entryFile = pathToFileURL(resolve(distDir, "workers/runVmTests.js")).href;
+const fileMap = new FileMap();
+const packageCache = /* @__PURE__ */ new Map();
+async function runVmTests(method, state, traces) {
+	const { ctx, rpc } = state;
+	const beforeEnvironmentTime = performance.now();
+	const { environment } = await loadEnvironment(ctx.environment.name, ctx.config.root, rpc, traces);
+	state.environment = environment;
+	if (!environment.setupVM) {
+		const envName = ctx.environment.name;
+		const packageId = envName[0] === "." ? envName : `vitest-environment-${envName}`;
+		throw new TypeError(`Environment "${ctx.environment.name}" is not a valid environment. Path "${packageId}" doesn't support vm environment because it doesn't provide "setupVM" method.`);
+	}
+	const vm = await traces.$("vitest.runtime.environment.setup", { attributes: {
+		"vitest.environment": environment.name,
+		"vitest.environment.vite_environment": environment.viteEnvironment || environment.name
+	} }, () => environment.setupVM(ctx.environment.options || ctx.config.environmentOptions || {}));
+	state.durations.environment = performance.now() - beforeEnvironmentTime;
+	process.env.VITEST_VM_POOL = "1";
+	if (!vm.getVmContext) throw new TypeError(`Environment ${environment.name} doesn't provide "getVmContext" method. It should return a context created by "vm.createContext" method.`);
+	const context = vm.getVmContext();
+	if (!isContext(context)) throw new TypeError(`Environment ${environment.name} doesn't provide a valid context. It should be created by "vm.createContext" method.`);
+	provideWorkerState(context, state);
+	// this is unfortunately needed for our own dependencies
+	// we need to find a way to not rely on this by default
+	// because browser doesn't provide these globals
+	context.process = process;
+	context.global = context;
+	context.console = state.config.disableConsoleIntercept ? console : createCustomConsole(state);
+	// TODO: don't hardcode setImmediate in fake timers defaults
+	context.setImmediate = setImmediate;
+	context.clearImmediate = clearImmediate;
+	const stubs = getDefaultRequestStubs(context);
+	const externalModulesExecutor = new ExternalModulesExecutor({
+		context,
+		fileMap,
+		packageCache,
+		transform: rpc.transform,
+		viteClientModule: stubs["/@vite/client"]
+	});
+	const moduleRunner = startVitestModuleRunner({
+		context,
+		evaluatedModules: state.evaluatedModules,
+		state,
+		externalModulesExecutor,
+		createImportMeta: createNodeImportMeta,
+		traces
+	});
+	emitModuleRunner(moduleRunner);
+	Object.defineProperty(context, VITEST_VM_CONTEXT_SYMBOL, {
+		value: {
+			context,
+			externalModulesExecutor
+		},
+		configurable: true,
+		enumerable: false,
+		writable: false
+	});
+	context.__vitest_mocker__ = moduleRunner.mocker;
+	if (ctx.config.serializedDefines) try {
+		runInContext(ctx.config.serializedDefines, context, { filename: "virtual:load-defines.js" });
+	} catch (error) {
+		throw new Error(`Failed to load custom "defines": ${error.message}`);
+	}
+	await moduleRunner.mocker.initializeSpyModule();
+	const { run } = await moduleRunner.import(entryFile);
+	try {
+		await run(method, ctx.files, ctx.config, moduleRunner, traces);
+	} finally {
+		await traces.$("vitest.runtime.environment.teardown", () => vm.teardown?.());
+	}
+}
+
+export { runVmTests as r };