Switch backend startup to interactive session

tests/test_desktop_overlay.py

@@ -0,0 +1,149 @@
+from __future__ import annotations
+
+import types
+from collections import deque
+from typing import Any
+
+from src.desktop_overlay import CompletionOverlayPayload, DesktopOverlayManager
+
+
+class _FakeWidget:
+    def __init__(self, root: "_FakeTk", *, width: int = 360, height: int = 160) -> None:
+        self._root = root
+        self._width = width
+        self._height = height
+        self._exists = True
+        self._after_ids: dict[str, tuple[int, Any]] = {}
+
+    def withdraw(self) -> None:
+        return None
+
+    def overrideredirect(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def attributes(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def configure(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def pack(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def place(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def update_idletasks(self) -> None:
+        return None
+
+    def winfo_width(self) -> int:
+        return self._width
+
+    def winfo_height(self) -> int:
+        return self._height
+
+    def winfo_exists(self) -> bool:
+        return self._exists
+
+    def geometry(self, *_args: Any, **_kwargs: Any) -> None:
+        return None
+
+    def deiconify(self) -> None:
+        return None
+
+    def destroy(self) -> None:
+        self._exists = False
+
+    def after(self, delay_ms: int, callback: Any) -> str:
+        after_id = self._root._schedule(delay_ms, callback)
+        self._after_ids[after_id] = (delay_ms, callback)
+        return after_id
+
+    def after_cancel(self, after_id: str) -> None:
+        self._after_ids.pop(after_id, None)
+        self._root._cancel(after_id)
+
+
+class _FakeButton(_FakeWidget):
+    def __init__(self, root: "_FakeTk", command: Any | None = None, **_kwargs: Any) -> None:
+        super().__init__(root)
+        self.command = command
+
+
+class _FakeTk(_FakeWidget):
+    def __init__(self) -> None:
+        super().__init__(self)
+        self._events: deque[tuple[str, int, Any]] = deque()
+        self._event_seq = 0
+        self.scheduled_delays: list[int] = []
+        self.cards: list[_FakeWidget] = []
+
+    def withdraw(self) -> None:
+        return None
+
+    def winfo_screenwidth(self) -> int:
+        return 1920
+
+    def _schedule(self, delay_ms: int, callback: Any) -> str:
+        after_id = f"after-{self._event_seq}"
+        self._event_seq += 1
+        self.scheduled_delays.append(delay_ms)
+        self._events.append((after_id, delay_ms, callback))
+        return after_id
+
+    def _cancel(self, after_id: str) -> None:
+        self._events = deque(event for event in self._events if event[0] != after_id)
+
+    def mainloop(self) -> None:
+        iterations = 0
+        while self._events and iterations < 20:
+            after_id, _delay_ms, callback = self._events.popleft()
+            iterations += 1
+            callback()
+            if any(not card.winfo_exists() for card in self.cards):
+                return
+
+
+class _FakeTkModule(types.SimpleNamespace):
+    def __init__(self, root: _FakeTk) -> None:
+        super().__init__()
+        self._root = root
+
+    def Tk(self) -> _FakeTk:
+        return self._root
+
+    def Toplevel(self, _root: _FakeTk) -> _FakeWidget:
+        card = _FakeWidget(self._root)
+        self._root.cards.append(card)
+        return card
+
+    def Frame(self, root: _FakeWidget, **_kwargs: Any) -> _FakeWidget:
+        return _FakeWidget(root._root)
+
+    def Label(self, root: _FakeWidget, **_kwargs: Any) -> _FakeWidget:
+        return _FakeWidget(root._root)
+
+    def Button(self, root: _FakeWidget, command: Any | None = None, **_kwargs: Any) -> _FakeButton:
+        return _FakeButton(root._root, command=command)
+
+
+def test_completion_overlay_auto_dismisses(monkeypatch: Any) -> None:
+    root = _FakeTk()
+    fake_tk = _FakeTkModule(root)
+    monkeypatch.setitem(__import__("sys").modules, "tkinter", fake_tk)
+
+    manager = DesktopOverlayManager(auto_dismiss_seconds=0.01)
+    manager._queue.put(
+        CompletionOverlayPayload(
+            job_id="job-123",
+            objective="Write a report",
+            return_message="Finished",
+            steps=5,
+            elapsed_seconds=12.4,
+        )
+    )
+
+    manager._ui_main()
+
+    assert any(delay == 10 for delay in root.scheduled_delays)
+    assert root.cards[0]._exists is False