1 files changed, 29 insertions, 0 deletions
diff --git a/test/js/web/fetch/body-stream.test.ts b/test/js/web/fetch/body-stream.test.ts
index 8e2baf92a..8f7675528 100644
--- a/test/js/web/fetch/body-stream.test.ts
+++ b/test/js/web/fetch/body-stream.test.ts
@@ -13,6 +13,35 @@ var port = 0;
   ];
   const useRequestObjectValues = [true, false];
 
+  test("Should not crash when not returning a promise when stream is in progress", async () => {
+    var called = false;
+    await runInServer(
+      {
+        async fetch() {
+          var stream = new ReadableStream({
+            type: "direct",
+            pull(controller) {
+              controller.write("hey");
+              setTimeout(() => {
+                controller.end();
+              }, 100);
+            },
+          });
+
+          return new Response(stream);
+        },
+      },
+      async url => {
+        called = true;
+        expect(await fetch(url).then(res => res.text())).toContain(
+          "Welcome to Bun! To get started, return a Response object.",
+        );
+      },
+    );
+
+    expect(called).toBe(true);
+  });
+
   for (let RequestPrototypeMixin of BodyMixin) {
     for (let useRequestObject of useRequestObjectValues) {
       describe(`Request.prototoype.${RequestPrototypeMixin.name}() ${