Initial commit

Signed-off-by: Ilan Bigio <ilan@openai.com>

codex-cli/tests/multiline-ctrl-enter-submit.test.tsx

@@ -0,0 +1,41 @@
+// Ctrl+Enter (CSI‑u 13;5u) should submit the buffer.
+
+import { renderTui } from "./ui-test-helpers.js";
+import MultilineTextEditor from "../src/components/chat/multiline-editor.js";
+import * as React from "react";
+import { describe, it, expect, vi } from "vitest";
+
+async function type(
+  stdin: NodeJS.WritableStream,
+  text: string,
+  flush: () => Promise<void>,
+) {
+  stdin.write(text);
+  await flush();
+}
+
+describe("MultilineTextEditor – Ctrl+Enter submits", () => {
+  it("calls onSubmit when CSI 13;5u is received", async () => {
+    const onSubmit = vi.fn();
+
+    const { stdin, flush, cleanup } = renderTui(
+      React.createElement(MultilineTextEditor, {
+        height: 5,
+        width: 20,
+        onSubmit,
+      }),
+    );
+
+    await flush();
+
+    await type(stdin, "hello", flush);
+    await type(stdin, "\u001B[13;5u", flush); // Ctrl+Enter (modifier 5 = Ctrl)
+
+    await flush();
+
+    expect(onSubmit).toHaveBeenCalledTimes(1);
+    expect(onSubmit.mock.calls[0]![0]).toBe("hello");
+
+    cleanup();
+  });
+});