test: update Node.js range for extensionless files (#6035)

**What's the problem this PR addresses?**

Node.js v18.19 has been released and contains
nodejs/node#49869 so we need to update tests.

**How did you fix it?**

Updated the version range.

**Checklist**
- [x] I have read the [Contributing
Guide](https://yarnpkg.com/advanced/contributing).
- [x] I have set the packages that need to be released for my changes to
be effective.
- [x] I will check that all automated PR checks pass before the PR gets
reviewed.

(cherry picked from commit 6ca73db)

Author: merceyz

.vscode/settings.json

@@ -14,7 +14,7 @@
   ],
   "eslint.nodePath": ".yarn/sdks",
   "editor.codeActionsOnSave": {
-    "source.fixAll.eslint": true
+    "source.fixAll.eslint": "explicit"
   },
   "pasteImage.path": "${projectRoot}/packages/gatsby/static",
   "pasteImage.basePath": "${projectRoot}/packages/gatsby/static",

.yarn/versions/0fefb43f.yml

@@ -0,0 +1,2 @@
+declined:
+  - "@yarnpkg/pnp"

packages/acceptance-tests/pkg-tests-specs/sources/pnp-esm.test.ts

@@ -423,7 +423,7 @@ describe(`Plug'n'Play - ESM`, () => {
     ),
   );
 
-  test(
+  (loaderFlags.ALLOWS_EXTENSIONLESS_FILES ? it.skip : it)(
     `it should not allow extensionless commonjs imports`,
     makeTemporaryEnv(
       { },
@@ -444,7 +444,27 @@ describe(`Plug'n'Play - ESM`, () => {
     ),
   );
 
-  test(
+  (loaderFlags.ALLOWS_EXTENSIONLESS_FILES ? it : it.skip)(
+    `it should allow extensionless commonjs imports`,
+    makeTemporaryEnv(
+      { },
+      {
+        pnpEnableEsmLoader: true,
+      },
+      async ({path, run, source}) => {
+        await xfs.writeFilePromise(ppath.join(path, `index.mjs` as Filename), `import bin from './cjs-bin';\nconsole.log(bin)`);
+        await xfs.writeFilePromise(ppath.join(path, `cjs-bin` as Filename), `module.exports = 42`);
+
+        await expect(run(`install`)).resolves.toMatchObject({code: 0});
+
+        await expect(run(`node`, `./index.mjs`)).resolves.toMatchObject({
+          stdout: `42\n`,
+        });
+      },
+    ),
+  );
+
+  (loaderFlags.ALLOWS_EXTENSIONLESS_FILES ? it.skip : it)(
     `it should not allow extensionless files with {"type": "module"}`,
     makeTemporaryEnv(
       {
@@ -466,6 +486,27 @@ describe(`Plug'n'Play - ESM`, () => {
     ),
   );
 
+  (loaderFlags.ALLOWS_EXTENSIONLESS_FILES ? it : it.skip)(
+    `it should allow extensionless files with {"type": "module"}`,
+    makeTemporaryEnv(
+      {
+        type: `module`,
+      },
+      {
+        pnpEnableEsmLoader: true,
+      },
+      async ({path, run, source}) => {
+        await xfs.writeFilePromise(ppath.join(path, `index` as Filename), `console.log(42)`);
+
+        await expect(run(`install`)).resolves.toMatchObject({code: 0});
+
+        await expect(run(`node`, `./index`)).resolves.toMatchObject({
+          stdout: `42\n`,
+        });
+      },
+    ),
+  );
+
   test(
     `it should support ESM binaries`,
     makeTemporaryEnv(

packages/yarnpkg-pnp/sources/esm-loader/loaderFlags.ts

@@ -23,3 +23,6 @@ export const HAS_LOADERS_AFFECTING_LOADERS = major > 19 || (major === 19 && mino
 
 // https://github.com/nodejs/node/pull/42881
 export const ALLOWS_NON_FILE_PARENT = major > 18 || (major === 18 && minor >= 1) || (major === 16 && minor >= 17);
+
+// https://github.com/nodejs/node/pull/49869
+export const ALLOWS_EXTENSIONLESS_FILES = major >= 21 || (major === 20 && minor >= 10) || (major === 18 && minor >= 19);