.

Author: JakobJingleheimer

test/es-module/test-cjs-esm-warn.mjs

@@ -2,6 +2,7 @@ import { mustCall } from '../common/index.mjs';
 import * as fixtures from '../common/fixtures.mjs';
 import assert from 'node:assert';
 import path from 'node:path';
+import { execPath } from 'node:process';
 
 import spawn from './helper.spawnAsPromised.mjs';
 
@@ -16,7 +17,7 @@ const pjson = path.resolve(
     fixtures.path('/es-modules/package-type-module/cjs.js')
   );
   const basename = 'cjs.js';
-  spawn(process.execPath, [requiringCjsAsEsm])
+  spawn(execPath, [requiringCjsAsEsm])
     .then(mustCall(({ code, signal, stderr }) => {
       assert.ok(
         stderr.replaceAll('\r', '').includes(
@@ -43,7 +44,7 @@ const pjson = path.resolve(
     fixtures.path('/es-modules/package-type-module/esm.js')
   );
   const basename = 'esm.js';
-  spawn(process.execPath, [requiringEsm])
+  spawn(execPath, [requiringEsm])
     .then(mustCall(({ code, signal, stderr }) => {
       assert.ok(
         stderr.replace(/\r/g, '').includes(

test/es-module/test-esm-cjs-builtins.js

@@ -0,0 +1,15 @@
+import { mustCall } from '../common/index.mjs';
+import * as fixtures from '../common/fixtures.mjs';
+import assert from 'node:assert';
+import { execPath } from 'node:process';
+
+import spawn from './helper.spawnAsPromised.mjs';
+
+const entry = fixtures.path('/es-modules/builtin-imports-case.mjs');
+
+spawn(execPath, [entry])
+  .then(mustCall(({ code, signal, stdout }) => {
+    assert.strictEqual(code, 0);
+    assert.strictEqual(signal, null);
+    assert.strictEqual(stdout, 'ok\n');
+  }));

test/es-module/test-esm-cjs-builtins.mjs

@@ -0,0 +1,24 @@
+import { mustCall } from '../common/index.mjs';
+import * as fixtures from '../common/fixtures.mjs';
+import assert from 'node:assert';
+import { execPath } from 'node:process';
+
+import spawn from './helper.spawnAsPromised.mjs';
+
+
+const validEntry = fixtures.path('/es-modules/cjs-exports.mjs');
+spawn(execPath, [validEntry])
+  .then(mustCall(({ code, signal, stdout }) => {
+    assert.strictEqual(code, 0);
+    assert.strictEqual(signal, null);
+    assert.strictEqual(stdout, 'ok\n');
+  }));
+
+const invalidEntry = fixtures.path('/es-modules/cjs-exports-invalid.mjs');
+spawn(execPath, [invalidEntry])
+  .then(mustCall(({ code, signal, stderr }) => {
+    assert.strictEqual(code, 1);
+    assert.strictEqual(signal, null);
+    assert.ok(stderr.includes('Warning: To load an ES module'));
+    assert.ok(stderr.includes('Unexpected token \'export\''));
+  }));