From d63f905b7b589a76f57ef3c3c5e895d8111c83e5 Mon Sep 17 00:00:00 2001
From: Laurin Quast <laurinquast@googlemail.com>
Date: Sat, 9 Jul 2022 10:34:23 +0200
Subject: [PATCH] test: .js extension in import

---
 src/test/index.spec.ts                  | 16 ++++++++++++++++
 tests/import-with-js-extension/foo.ts   |  1 +
 tests/import-with-js-extension/index.ts |  5 +++++
 3 files changed, 22 insertions(+)
 create mode 100644 tests/import-with-js-extension/foo.ts
 create mode 100644 tests/import-with-js-extension/index.ts

diff --git a/src/test/index.spec.ts b/src/test/index.spec.ts
index ca4c2cf85..c25d9f263 100644
--- a/src/test/index.spec.ts
+++ b/src/test/index.spec.ts
@@ -197,6 +197,22 @@ test.suite('ts-node', (test) => {
       expect(stdout).toBe('hello world\n');
     });
 
+    test.suite('should support js extension', (test) => {
+      test('test', async () => {
+        const { err, stdout } = await exec(
+          [
+            CMD_TS_NODE_WITHOUT_PROJECT_FLAG,
+            '-pe "import { main } from \'./index\';main()"',
+          ].join(' '),
+          {
+            cwd: join(TEST_DIR, 'import-with-js-extension'),
+          }
+        );
+        expect(err).toBe(null);
+        expect(stdout).toBe('hello world\n');
+      });
+    });
+
     test.suite('should support cts when module = CommonJS', (test) => {
       test.runIf(tsSupportsMtsCtsExtensions);
       test('test', async (t) => {
diff --git a/tests/import-with-js-extension/foo.ts b/tests/import-with-js-extension/foo.ts
new file mode 100644
index 000000000..2a30e7110
--- /dev/null
+++ b/tests/import-with-js-extension/foo.ts
@@ -0,0 +1 @@
+export const helloWorld = 'hello world';
diff --git a/tests/import-with-js-extension/index.ts b/tests/import-with-js-extension/index.ts
new file mode 100644
index 000000000..c2e07ac37
--- /dev/null
+++ b/tests/import-with-js-extension/index.ts
@@ -0,0 +1,5 @@
+import { helloWorld } from './foo.js';
+
+export function main() {
+  console.log(helloWorld);
+}