mirror of
https://github.com/kuhyx/screen-locker.git
synced 2026-11-10 20:47:14 +01:00
Krzysztof kuhy Rudnicki
600d0fd084
The lock now paints one container per live output instead of one window on the primary, and claims the screen through an Arbiter at RANK_SCREEN_LOCKER so the wake alarm can outrank it. The fan-out happens at the widget factory, not the render loop. Painting a screen here is not a pure function -- the ~20 clear_container() flows record workouts, credit weeks and branch on state while they paint -- so re-running a flow per surface would double those side effects. Instead `_label`, `_button_row` and friends build N copies and return a group that mirrors later configure calls to all of them, and a flow body still runs once. Frame groups nest, so `_button(button_row, ...)` reads exactly as it did. The degenerate case carries as much weight as the general one: the status window, the post-sick-day verify window and the relaxed-day prompt have no lock and no surfaces, and share this same factory. They get a group of exactly one frame and behave as they always did. Text boxes are the one thing that cannot be shared. Entries fan out over a single StringVar, but tk.Text has no such variable, so the sick-day description genuinely diverges per monitor; TextGroup.get() returns whichever copy was actually typed into, preserving "answer on any monitor". Tests: the suite hung rather than failed on first run, which is the trap gatelock's own conftest documents -- screen_locker patches its own `tk`, but LockWindow builds Toplevels through gatelock's, and real tkinter over a MagicMock root recurses without bound. `_gatelock_fixtures` closes that and redirects the runtime dir so no test can stand a production locker down. Every other test runs single-output, where fan-out is unobservable, so test_surface_fanout runs on two outputs; each assertion was checked by cropping the group loops to the primary and confirming it goes red. 874 tests, 100% branch coverage, pre-commit clean, no lint suppressions.
77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
"""Keeping gatelock v0.2.0's per-output machinery off the real machine.
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``conftest``'s ``_block_real_tk_and_exit`` patches ``tk`` inside
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*screen_locker*, which is not enough any more: since v0.2.0 ``LockWindow``
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builds one real ``tk.Toplevel`` per live output through *gatelock's* own
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``tk``. Over a MagicMock root that sends real tkinter into unbounded mock
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recursion, so the suite **hangs** instead of failing -- far harder to
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diagnose than an error, and it is what this module exists to prevent.
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Re-exported from ``conftest`` rather than defined there so neither file
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exceeds the repo's 400-line limit.
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from unittest.mock import MagicMock, patch
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from gatelock import Output, OutputRect
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import pytest
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if TYPE_CHECKING:
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from collections.abc import Iterator
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from pathlib import Path
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FAKE_OUTPUTS = (
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Output("DP-0", connected=True, rect=OutputRect(0, 0, 1920, 1080), primary=True),
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)
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"""One live output by default, so the Tk-screen fallback (which would call
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int() on a MagicMock) is never reached."""
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TWO_OUTPUTS = (
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Output("DP-0", connected=True, rect=OutputRect(0, 0, 3840, 2160), primary=True),
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Output("HDMI-0", connected=True, rect=OutputRect(3840, 0, 2560, 1440)),
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)
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"""The real desk. Opt in with the ``dual_output`` fixture for anything
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asserting that work fans out across monitors: against ``FAKE_OUTPUTS`` a loop
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that only ever touched the primary passes every assertion."""
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def _make_toplevel(_parent: object = None, **_kwargs: object) -> MagicMock:
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"""A Toplevel stand-in for gatelock's per-output surfaces."""
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window = MagicMock()
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window.winfo_children.return_value = []
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return window
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@pytest.fixture(autouse=True)
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def _hermetic_gatelock(
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tmp_path: Path, monkeypatch: pytest.MonkeyPatch
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) -> Iterator[None]:
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"""Block every path from the lock to the real display or machine.
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The runtime dir is redirected as well, so a test cannot reach the real
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``$XDG_RUNTIME_DIR`` and stand a *production* locker down through the
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arbiter.
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"""
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monkeypatch.setenv("GATELOCK_RUNTIME_DIR", str(tmp_path / "gatelock-runtime"))
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with (
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patch("gatelock._surfaces.tk.Toplevel", side_effect=_make_toplevel),
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patch("gatelock._outputs.RandrBackend.create", return_value=None),
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patch("gatelock._outputs.scan_xrandr", return_value=FAKE_OUTPUTS),
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patch("gatelock._detect._RandrEventSource.start", return_value=False),
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):
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yield
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@pytest.fixture
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def dual_output(_hermetic_gatelock: None) -> Iterator[None]:
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"""Re-scan as a two-monitor desk, layered over the single-output default.
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Depends on ``_hermetic_gatelock`` so pytest is obliged to apply it
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second; the ``scan_xrandr`` patch here has to be the one that wins.
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"""
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with patch("gatelock._outputs.scan_xrandr", return_value=TWO_OUTPUTS):
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yield
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