test(injection): pin fallback ladder per desktop class and niri first-run
Locks the ordered rungs without real compositors: portal first where a backend implements it (GNOME), direct typing first on niri with IBus excluded and no portal selected, deny demoting to direct typing with the full dictation kept, terminal probe choosing Ctrl+Shift+V, held modifiers delaying the XWayland paste, and clipboard manual paste as last resort. USER_GUIDE states the niri first run (no prompt, typing goes direct, never pin portal there) and the GNOME/KDE grant, persistence and deny fallback under the renamed backend setting and override names. Refs #31
This commit is contained in:
soubarnak
@@ -369,3 +369,22 @@ most wlroots compositors do not). `ydotool` also needs a usable `/dev/uinput`
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and a working `ydotoold` setup. `xdotool` types into X11/XWayland windows,
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not native Wayland windows. A live test in the target application is still the
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final confirmation that text is delivered.
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### First dictation on niri, GNOME, and KDE
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**niri.** There is no permission prompt on niri: no portal backend implements
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`org.freedesktop.portal.RemoteDesktop` there, so the portal is never
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selected and the effective first rung is direct typing. Expect your first
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dictation to land at the cursor with nothing to approve and nothing to deny.
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Do not pin `portal` in `text_injection.backend` (or `VOCULINUX_FORCE_BACKEND`)
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as a niri recommendation — there is nothing for it to talk to. IBus stays
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excluded on niri as well: it would report the text as delivered while native
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windows silently receive nothing.
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**GNOME / KDE Plasma.** The portal leads where a backend implements it.
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Nothing asks at startup: the handshake stays lazy and the compositor asks
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once, for keyboard access only, at the first actual dictation. A granted
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session keeps its restore token so later launches skip the prompt where the
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desktop supports persistence. Denying closes that session and is not retried
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within the run; the pending dictation is still typed through the next
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fallback rung, so saying no costs a fallback rather than the dictation.
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@@ -0,0 +1,317 @@
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"""Ladder-level behaviour tests for the Wayland text-injection fallback.
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Ticket #31: the decided injection behaviour becomes pinned, observable fact.
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These tests lock the fallback order per desktop class without real
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compositors — portal first only where a backend implements it, then direct
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typing, then the virtual-input tool, then XWayland-only injection, then
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manual paste — including IBus exclusion on niri, terminal paste-shortcut
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selection, and waiting for held modifiers to release.
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Seams under test (public boundaries, no internals):
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1. Backend selection — constructing ``TextInjector()`` with mocked
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``shutil.which``/``subprocess``/portal/IBus probes and a per-test desktop
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environment. Catches: niri gaining an IBus or portal dependency, a
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desktop class losing its portal-first rung.
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2. Runtime demotion — ``_inject_with_wayland_tool`` with a failing portal.
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Catches: a portal denial losing the dictation instead of demoting.
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3. Paste delivery — ``_inject_via_clipboard_paste`` with the real terminal
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probe and ``_inject_with_xdotool`` with held modifiers. Catches: a
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terminal losing its Shift chord, a held push-to-talk modifier corrupting
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the paste.
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What this file does NOT pin: the wtype-vs-ydotool preference when both are
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installed. That order is an implementation choice with Flatpak/KDE
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constraints behind it; the ladder contract here is that the selected
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direct-typing tool delivers without involving the portal or IBus on niri
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and without losing the clipboard contents.
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"""
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import subprocess
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import threading
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from typing import Any, Dict, Optional
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from unittest.mock import MagicMock, patch
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import pytest
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from vocalinux.text_injection.remote_desktop_portal import RemoteDesktopPortalError
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from vocalinux.text_injection.text_injector import DesktopEnvironment, TextInjector
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_TI = "vocalinux.text_injection.text_injector"
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def _stub_portal(available: bool) -> MagicMock:
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"""A RemoteDesktopPortal stand-in whose probe reports ``available``."""
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instance = MagicMock()
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instance.probe.return_value = available
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cls = MagicMock()
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cls.supported.return_value = True
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cls.return_value = instance
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return cls
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def _selecting_injector(
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monkeypatch: pytest.MonkeyPatch,
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*,
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desktop: str,
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tools: Dict[str, Optional[str]],
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portal_available: bool,
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ibus_available: bool = False,
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ibus_bridge_running: bool = False,
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ydotool_ready: bool = True,
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) -> TextInjector:
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"""Construct a TextInjector on a mocked Wayland session for ``desktop``.
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No compositor is contacted: tool presence, the portal probe, the IBus
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daemon state and the uinput readiness are all stubbed.
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"""
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monkeypatch.setenv("XDG_SESSION_TYPE", "wayland")
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monkeypatch.setenv("WAYLAND_DISPLAY", "wayland-0")
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monkeypatch.setenv("XDG_CURRENT_DESKTOP", desktop)
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monkeypatch.setenv("XDG_SESSION_DESKTOP", desktop)
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monkeypatch.setenv("DESKTOP_SESSION", desktop)
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monkeypatch.setenv("KDE_FULL_SESSION", "")
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for var in (
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"FLATPAK_ID",
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"SNAP",
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"VOCULINUX_FORCE_BACKEND",
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"GTK_IM_MODULE",
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"QT_IM_MODULE",
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"XMODIFIERS",
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):
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monkeypatch.delenv(var, raising=False)
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monkeypatch.setattr("shutil.which", lambda cmd: tools.get(cmd))
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monkeypatch.setattr(f"{_TI}.is_ibus_available", lambda: ibus_available)
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monkeypatch.setattr(f"{_TI}.is_ibus_active_input_method", lambda: False)
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monkeypatch.setattr(f"{_TI}.is_ibus_daemon_running", lambda: True)
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monkeypatch.setattr(
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TextInjector,
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"_ibus_wayland_bridge_running",
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staticmethod(lambda: ibus_bridge_running),
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)
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monkeypatch.setattr(TextInjector, "_ensure_ydotoold", lambda self: ydotool_ready)
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monkeypatch.setattr(f"{_TI}.RemoteDesktopPortal", _stub_portal(portal_available))
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run = MagicMock()
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run.return_value.returncode = 0
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run.return_value.stderr = ""
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monkeypatch.setattr("subprocess.run", run)
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monkeypatch.setattr("time.sleep", lambda _seconds: None)
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return TextInjector()
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def _bare_wayland_injector(**attrs: Any) -> Any:
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"""A TextInjector without __init__, carrying only what delivery needs."""
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injector = TextInjector.__new__(TextInjector)
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injector._state_lock = threading.Lock()
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injector._abort_injections = threading.Event()
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injector._ibus_injector = None
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injector._ibus_ready = False
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injector._ibus_init_failed = False
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injector._ibus_init_thread = None
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injector._portal = None
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injector._clipboard_tool_health = {}
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injector._clipboard_timeout = 0.35
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injector._clipboard_restore_generation = 0
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injector._clipboard_restore_target = None
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injector._log_current_window_info = MagicMock()
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injector._wait_for_modifiers_released = MagicMock()
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for key, value in attrs.items():
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setattr(injector, key, value)
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return injector
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class TestNiriLadder:
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"""On niri there is no portal backend and IBus cannot reach apps."""
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def test_niri_skips_ibus_even_with_daemon_running(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""An IBus daemon on niri must not capture dictation (#31).
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IBus reports the commit as delivered while native niri clients
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receive nothing, so the injector must not construct its engine even
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when IBus looks fully available.
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"""
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with patch(f"{_TI}.IBusTextInjector") as mock_ibus_class:
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injector = _selecting_injector(
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monkeypatch,
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desktop="niri",
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tools={"wtype": "/usr/bin/wtype"},
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portal_available=False,
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ibus_available=True,
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)
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mock_ibus_class.assert_not_called()
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assert injector._ibus_injector is None
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assert injector.environment == DesktopEnvironment.WAYLAND
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assert injector.wayland_tool == "wtype"
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def test_niri_never_selects_portal_without_backend(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""No RemoteDesktop backend on niri means no portal and no prompt."""
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injector = _selecting_injector(
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monkeypatch,
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desktop="niri",
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tools={"wtype": "/usr/bin/wtype"},
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portal_available=False,
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ibus_available=True,
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)
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assert injector.wayland_tool == "wtype"
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assert injector._portal is None
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def test_niri_first_rung_is_direct_typing_without_clipboard(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""The effective first rung on niri types directly, clipboard-free."""
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injector = _bare_wayland_injector(
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environment=DesktopEnvironment.WAYLAND, wayland_tool="wtype"
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)
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runs = []
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def fake_run(cmd: Any, **kwargs: Any) -> MagicMock:
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runs.append(cmd)
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return MagicMock(returncode=0, stderr="")
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monkeypatch.setattr("subprocess.run", fake_run)
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with (
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patch.object(injector, "_copy_to_clipboard", side_effect=AssertionError("no copy")),
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patch.object(injector, "_read_clipboard", side_effect=AssertionError("no read")),
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patch.object(
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injector,
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"_inject_via_clipboard_paste",
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side_effect=AssertionError("no paste"),
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),
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):
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injector._inject_with_wayland_tool("hi")
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assert runs == [["wtype", "--", "hi"]]
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class TestPortalFirstWhereImplemented:
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"""GNOME/KDE implement RemoteDesktop, so the portal leads there."""
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def test_gnome_selects_portal_where_backend_exists(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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injector = _selecting_injector(
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monkeypatch,
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desktop="GNOME",
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tools={"wtype": "/usr/bin/wtype", "ydotool": "/usr/bin/ydotool"},
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portal_available=True,
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)
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assert injector.wayland_tool == "portal"
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assert injector.environment == DesktopEnvironment.WAYLAND
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def test_portal_deny_falls_back_without_losing_dictation(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""Saying no to the portal costs a fallback, not the dictation.
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The denied session is not retried within the run; the pending text
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goes through the next rung whole.
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"""
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injector = _bare_wayland_injector(
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environment=DesktopEnvironment.WAYLAND, wayland_tool="portal"
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)
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portal = MagicMock()
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portal.inject_text.side_effect = RemoteDesktopPortalError("denied by user", delivered=0)
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injector._portal = portal
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monkeypatch.setattr(
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"shutil.which", lambda cmd: "/usr/bin/wtype" if cmd == "wtype" else None
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)
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runs = []
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def fake_run(cmd: Any, **kwargs: Any) -> MagicMock:
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runs.append(cmd)
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return MagicMock(returncode=0, stderr="")
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monkeypatch.setattr("subprocess.run", fake_run)
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injector._inject_with_wayland_tool("hello")
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portal.inject_text.assert_called_once_with("hello")
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assert injector.wayland_tool == "wtype"
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assert runs == [["wtype", "--", "hello"]]
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class TestTerminalAndModifierGating:
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"""Terminals get the terminal chord; held modifiers wait first."""
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def test_terminal_probe_selects_terminal_chord_end_to_end(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""Auto-detect on a focused terminal must send Ctrl+Shift+V (#31)."""
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injector = _bare_wayland_injector(
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environment=DesktopEnvironment.WAYLAND, wayland_tool="wtype"
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)
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monkeypatch.setattr("threading.Thread", MagicMock())
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paste_cmds = []
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real_run = MagicMock(returncode=0, stdout="", stderr="")
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def fake_run(cmd: Any, **kwargs: Any) -> MagicMock:
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paste_cmds.append(cmd)
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return real_run
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monkeypatch.setattr("subprocess.run", fake_run)
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with (
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patch.object(injector, "_paste_shortcut_preference", return_value="auto"),
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patch(
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f"{_TI}.is_focused_window_terminal",
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return_value=True,
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),
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patch.object(injector, "_copy_to_clipboard", return_value=True),
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patch.object(injector, "_read_clipboard", return_value="old"),
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):
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assert injector._inject_via_clipboard_paste("ls") is True
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assert ["wtype", "-M", "ctrl", "-M", "shift", "v"] in paste_cmds
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def test_held_modifier_delays_xwayland_paste_until_release(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""A held push-to-talk modifier must not rewrite the paste chord."""
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injector = _bare_wayland_injector(environment=DesktopEnvironment.WAYLAND_XDOTOOL)
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injector._wait_for_modifiers_released = TextInjector._wait_for_modifiers_released.__get__(
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injector, TextInjector
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)
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states = [{56}, {56}, set()]
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polls = []
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pastes = []
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def fake_held() -> set:
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held = states[min(len(polls), len(states) - 1)]
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polls.append(set(held))
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return set(held)
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monkeypatch.setattr(injector, "_held_modifier_keycodes", fake_held)
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monkeypatch.setattr("time.sleep", lambda _seconds: None)
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with (
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patch.object(injector, "_clipboard_holds_non_text", return_value=False),
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patch.object(
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injector,
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"_inject_via_clipboard_paste",
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side_effect=lambda text, **kwargs: pastes.append(text) or True,
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),
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):
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injector._inject_with_xdotool("ls")
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assert len(polls) == 3
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assert pastes == ["ls"]
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def test_all_tools_down_leaves_dictation_on_clipboard(self) -> None:
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"""Manual paste is the last resort: text is kept, never dropped."""
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injector = _bare_wayland_injector(environment=DesktopEnvironment.X11)
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injector._session_environment = DesktopEnvironment.X11
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with (
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patch.object(injector, "_paste_long_text_enabled", return_value=False),
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patch.object(injector, "_clipboard_holds_non_text", return_value=False),
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patch.object(injector, "_should_copy_to_clipboard", return_value=False),
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patch(
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"vocalinux.text_injection.text_injector.subprocess.run",
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side_effect=subprocess.CalledProcessError(1, "xdotool"),
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),
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patch(
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"vocalinux.text_injection.text_injector.time.sleep",
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return_value=None,
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),
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patch.object(injector, "_copy_to_clipboard", return_value=True) as mock_copy,
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patch.object(injector, "_show_clipboard_fallback_notification") as mock_note,
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):
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assert injector.inject_text("hello") is False
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mock_copy.assert_called_once_with("hello")
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mock_note.assert_called_once_with()
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Reference in New Issue
Block a user