Test for missing file

Author: GeoffreyBooth

test/es-module/test-esm-detect-ambiguous.mjs

@@ -424,6 +424,25 @@ describe('--experimental-detect-module', { concurrency: !process.env.TEST_PARALL
       strictEqual(code, 0);
       strictEqual(signal, null);
     });
+
+    it('should throw the usual error for a missing file', async () => {
+      const { code, signal, stdout, stderr } = await spawnPromisified(process.execPath, [
+        '--no-warnings',
+        '--experimental-detect-module',
+        '--import',
+        `data:text/javascript,${encodeURIComponent(
+          'import { register } from "node:module";' +
+          'import { pathToFileURL } from "node:url";' +
+          'register("./transpile-esm-to-cjs.mjs", pathToFileURL("./"));'
+        )}`,
+        fixtures.path('es-modules/package-without-type/imports-nonexistent.js'),
+      ], { cwd: fixtures.fileURL('es-module-loaders/') });
+
+      match(stderr, /ERR_MODULE_NOT_FOUND.+does-not-exist\.js/);
+      strictEqual(stdout, 'Resolved format: module\nLoaded original format: module\n');
+      strictEqual(code, 1);
+      strictEqual(signal, null);
+    });
   });
 });
 

test/fixtures/es-modules/package-without-type/imports-nonexistent.js

@@ -0,0 +1 @@
+import "./does-not-exist.js";