1 files changed, 31 insertions, 0 deletions
diff --git a/test/cli/run/run-extensionless.test.ts b/test/cli/run/run-extensionless.test.ts
new file mode 100644
index 000000000..642c274d9
--- /dev/null
+++ b/test/cli/run/run-extensionless.test.ts
@@ -0,0 +1,31 @@
+import { expect, test } from "bun:test";
+import { mkdirSync, realpathSync } from "fs";
+import { bunEnv, bunExe } from "harness";
+import { writeFileSync } from "fs";
+import { tmpdir } from "os";
+import { join } from "path";
+
+test("running extensionless file works", async () => {
+  const dir = join(realpathSync(tmpdir()), "bun-run-test1");
+  mkdirSync(dir, { recursive: true });
+  await Bun.write(join(dir, "cool"), "const x: Test = 2; console.log('hello world');");
+  let { stdout } = Bun.spawnSync({
+    cmd: [bunExe(), join(dir, "./cool")],
+    cwd: dir,
+    env: bunEnv,
+  });
+  expect(stdout.toString("utf8")).toEqual("hello world\n");
+});
+
+test("running shebang typescript file works", async () => {
+  const dir = join(realpathSync(tmpdir()), "bun-run-test2");
+  mkdirSync(dir, { recursive: true });
+  writeFileSync(join(dir, "cool"), `#!${bunExe()}\nconst x: Test = 2; console.log('hello world');`, { mode: 0o777 });
+
+  let { stdout } = Bun.spawnSync({
+    cmd: [join(dir, "./cool")],
+    cwd: dir,
+    env: bunEnv,
+  });
+  expect(stdout.toString("utf8")).toEqual("hello world\n");
+});