chore: check dependency installed (#543)

Co-authored-by: Copilot <[email protected]>

Author: 9aoy

packages/core/src/runtime/util.ts

@@ -1,3 +1,4 @@
+import { createRequire } from 'node:module';
 import { format } from 'node:util';
 import { diff } from 'jest-diff';
 import type { FormattedError, Test } from '../types';
@@ -108,3 +109,23 @@ function getValue(source: any, path: string, defaultValue = undefined): any {
 }
 
 export class TestRegisterError extends Error {}
+
+export class RstestError extends Error {
+  public fullStack?: boolean;
+}
+
+export function checkPkgInstalled(name: string): void {
+  const require = createRequire(import.meta.url);
+  try {
+    require.resolve(name);
+  } catch (error: any) {
+    if (error.code === 'MODULE_NOT_FOUND') {
+      const error = new RstestError(
+        `Missing dependency "${name}". Please install it first.`,
+      );
+      error.fullStack = true;
+      throw error;
+    }
+    throw error;
+  }
+}

packages/core/src/runtime/worker/env/happyDom.ts

@@ -1,5 +1,6 @@
 import type { Window as HappyDOMWindow } from 'happy-dom';
 import type { TestEnvironment } from '../../../types';
+import { checkPkgInstalled } from '../../util';
 import { addDefaultErrorHandler, installGlobal } from './utils';
 
 type HappyDOMOptions = ConstructorParameters<typeof HappyDOMWindow>[0];
@@ -9,8 +10,9 @@ export const environment = <
 >{
   name: 'happy-dom',
   async setup(global, { happyDom = {} }) {
-    const { Window } = await import('happy-dom');
+    checkPkgInstalled('happy-dom');
 
+    const { Window } = await import('happy-dom');
     const win = new Window({
       ...happyDom,
       url: happyDom.url || 'http://localhost:3000',

packages/core/src/runtime/worker/env/jsdom.ts

@@ -1,5 +1,6 @@
 import type { ConstructorOptions } from 'jsdom';
 import type { TestEnvironment } from '../../../types';
+import { checkPkgInstalled } from '../../util';
 import { addDefaultErrorHandler, installGlobal } from './utils';
 
 type JSDOMOptions = ConstructorOptions & {
@@ -10,6 +11,8 @@ type JSDOMOptions = ConstructorOptions & {
 export const environment = <TestEnvironment<typeof globalThis>>{
   name: 'jsdom',
   async setup(global, { jsdom = {} }) {
+    checkPkgInstalled('jsdom');
+
     const { CookieJar, JSDOM, ResourceLoader, VirtualConsole } = await import(
       'jsdom'
     );