2 files changed, 31 insertions, 0 deletions
diff --git a/test/js/bun/http/big-form-data.fixture.js b/test/js/bun/http/big-form-data.fixture.js
new file mode 100644
index 000000000..72036a222
--- /dev/null
+++ b/test/js/bun/http/big-form-data.fixture.js
@@ -0,0 +1,20 @@
+const content = "Bun".repeat(15360000);
+
+const server = Bun.serve({
+  port: 0,
+  fetch: async req => {
+    const data = await req.formData();
+    return new Response(data.get("name") === content ? "OK" : "NO");
+  },
+});
+
+const formData = new FormData();
+formData.append("name", content);
+const result = await fetch(`http://${server.hostname}:${server.port}`, {
+  method: "POST",
+  body: formData,
+}).then(res => res.text());
+
+server.stop();
+
+process.exit(result === "OK" ? 0 : 1);
diff --git a/test/js/bun/http/bun-server.test.ts b/test/js/bun/http/bun-server.test.ts
index 3e0e4e71e..398ef4bb7 100644
--- a/test/js/bun/http/bun-server.test.ts
+++ b/test/js/bun/http/bun-server.test.ts
@@ -1,4 +1,5 @@
 import { describe, expect, test } from "bun:test";
+import { bunExe, bunEnv } from "harness";
 
 describe("Server", () => {
   test("normlizes incoming request URLs", async () => {
@@ -357,4 +358,14 @@ describe("Server", () => {
       server.stop(true);
     }
   });
+
+  test("should not crash with big formData", async () => {
+    const proc = Bun.spawn({
+      cmd: [bunExe(), "big-form-data.fixture.js"],
+      cwd: import.meta.dir,
+      env: bunEnv,
+    });
+    await proc.exited;
+    expect(proc.exitCode).toBe(0);
+  });
 });