diff --git a/crates/molotov-core/tests/input_haptics_test.rs b/crates/molotov-core/tests/input_haptics_test.rs
new file mode 100644
index 0000000..3dbfced
--- /dev/null
+++ b/crates/molotov-core/tests/input_haptics_test.rs
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+use molotov_core::input::gamepad::{translate_button_to_android, AndroidKeyCode, GamepadButton, GamepadType};
+use molotov_core::input::ime::Rect;
+use molotov_core::input::manager::InputManager;
+
+#[test]
+fn test_end_to_end_ime_and_gamepad_rumble() {
+    let mut manager = InputManager::new();
+
+    // 1. Text Chat IME Preedit flow
+    manager.ime.start_text_input(Rect { x: 50, y: 100, width: 300, height: 30 });
+    manager.ime.update_preedit("nihao", 5);
+    assert_eq!(manager.ime.preedit_text(), "nihao");
+
+    let committed = manager.ime.commit_text("你好");
+    assert_eq!(committed, "你好");
+    assert_eq!(manager.ime.preedit_text(), "");
+
+    // 2. Controller Input Translation
+    let key = translate_button_to_android(GamepadButton::South, GamepadType::Xbox);
+    assert_eq!(key, AndroidKeyCode::ButtonA);
+
+    // 3. Controller Haptic Actuation
+    manager.haptics.rumble(0, 0.75, 0.25, 150);
+    let state = manager.haptics.get_state(0).unwrap();
+    assert_eq!(state.low_freq_motor, (0.75 * 65535.0) as u16);
+    assert_eq!(state.high_freq_motor, (0.25 * 65535.0) as u16);
+    assert_eq!(state.duration_ms, 150);
+}