test(core): test UI abort after missing ButtonAck

[no changelog]

Author: romanz

core/translations/de.json

@@ -3529,7 +3529,7 @@
     },
     "words__chain": "Chain",
     "words__comm_trouble": {
-      "Bolt": "Dein Trezor hat Probleme bei der Kommunikation mit deinem verbundenen Gerät.",
+      "Bolt": "Dein Trezor hat Probleme, mit deinem verbundenen Gerät zu kommunizieren.",
       "Caesar": "Dein Trezor hat Schwierigkeiten, mit deinem verbundenen Gerät zu kommunizieren.",
       "Delizia": "Dein Trezor hat Probleme, mit deinem verbundenen Gerät zu kommunizieren.",
       "Eckhart": "Dein Trezor hat Schwierigkeiten, mit deinem verbundenen Gerät zu kommunizieren."

core/translations/signatures.json

@@ -1,8 +1,8 @@
 {
   "current": {
-    "merkle_root": "0e59628386f44b47e66a934a1b6c632cf4ee048b0322e82cf27eb0690cb5e2c1",
-    "datetime": "2026-04-29T14:48:26.117421+00:00",
-    "commit": "9d3c6ce08ab9e21bbbd16b6e40fbb18debd3641a"
+    "merkle_root": "09882e5140c5d907b2f6c18eb9d117c3264b634149151db9bd17dadd8d5ac8b6",
+    "datetime": "2026-05-03T07:49:33.210129+00:00",
+    "commit": "aa59dd493946f2885e2453a1e5e62c47500b863d"
   },
   "history": [
     {

tests/device_tests/test_msg_delayed_ack.py

@@ -14,6 +14,8 @@
 
 import time
 
+import pytest
+
 from trezorlib import messages
 from trezorlib.debuglink import DebugSession as Session
 
@@ -28,4 +30,21 @@ def test_delayed_ack(session: Session):
     # (following https://github.com/trezor/trezor-firmware/issues/5884)
     time.sleep(2.5)
     res = session.call_raw(messages.ButtonAck())
+    res = messages.Success.ensure_isinstance(res)
     assert res.message == "delayed"
+
+
+@pytest.mark.models("core")
+def test_delayed_ack_abort(session: Session):
+    br = session.call_raw(messages.Ping(message="delayed", button_protection=True))
+    assert isinstance(br, messages.ButtonRequest)
+    assert br.code == messages.ButtonRequestType.ProtectCall
+    # confirm layout instead of sending ButtonAck
+    session.debug.press_yes()
+    # "waiting" screen should be shown after 2 seconds on Core models
+    # (following https://github.com/trezor/trezor-firmware/issues/5884)
+    time.sleep(2.5)
+    session.debug.press_yes()  # abort flow on device (instead of ButtonAck)
+    res = session.read()
+    res = messages.Failure.ensure_isinstance(res)
+    assert res.code == messages.FailureType.ActionCancelled