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115 lines
3.9 KiB
Python
115 lines
3.9 KiB
Python
# SPDX-License-Identifier: MIT
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"""Tests for the multi-monitor X-screen extent parser (display.layout)."""
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from __future__ import annotations
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from winpodx.display import layout
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# Real `xrandr --listmonitors` from a mixed-DPI dual-monitor KDE Wayland host:
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# eDP-1 2560x1600 @ +0+0, HDMI-A-1 2773x1560 @ +2561+0 (a 1 px gap at x=2560
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# and mismatched heights -- the layout FreeRDP's /span refuses).
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_DUAL = """Monitors: 2
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0: +*eDP-1 2560/344x1600/215+0+0 eDP-1
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1: +HDMI-A-1 2773/698x1560/393+2561+0 HDMI-A-1
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"""
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_SINGLE = """Monitors: 1
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0: +*eDP-1 2560/344x1600/215+0+0 eDP-1
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"""
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_STACKED = """Monitors: 2
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0: +*DP-1 1920/600x1080/340+0+0 DP-1
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1: +DP-2 1920/600x1080/340+0+1080 DP-2
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"""
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def test_parse_extent_dual_bounding_box() -> None:
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# max(x+w) = 2561+2773 = 5334; max(y+h) = max(1600, 1560) = 1600.
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assert layout.parse_monitor_extent(_DUAL) == (2, 5334, 1600)
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def test_parse_extent_stacked_vertical() -> None:
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# Vertically stacked: width 1920, height 1080 + 1080 = 2160.
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assert layout.parse_monitor_extent(_STACKED) == (2, 1920, 2160)
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def test_parse_extent_single_monitor() -> None:
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assert layout.parse_monitor_extent(_SINGLE) == (1, 2560, 1600)
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def test_parse_extent_garbage_returns_none() -> None:
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assert layout.parse_monitor_extent("Monitors: 0\n") is None
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assert layout.parse_monitor_extent("total nonsense") is None
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def test_detect_extent_none_for_single_monitor(monkeypatch) -> None:
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# Single monitor -> None (no span / explicit size needed).
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monkeypatch.setattr(layout, "_run_xrandr_listmonitors", lambda: _SINGLE)
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assert layout.detect_x_screen_extent() is None
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def test_detect_extent_returns_bbox_for_dual(monkeypatch) -> None:
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monkeypatch.setattr(layout, "_run_xrandr_listmonitors", lambda: _DUAL)
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assert layout.detect_x_screen_extent() == (5334, 1600)
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def test_detect_extent_none_when_xrandr_unavailable(monkeypatch) -> None:
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monkeypatch.setattr(layout, "_run_xrandr_listmonitors", lambda: None)
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assert layout.detect_x_screen_extent() is None
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def test_has_mixed_scale_true_for_differing(monkeypatch) -> None:
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layout._MIXED_SCALE_CACHE.clear()
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monkeypatch.setattr(layout, "detect_monitor_scales", lambda: [1.3, 1.0])
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assert layout.has_mixed_scale() is True
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def test_has_mixed_scale_false_for_uniform(monkeypatch) -> None:
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layout._MIXED_SCALE_CACHE.clear()
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monkeypatch.setattr(layout, "detect_monitor_scales", lambda: [1.5, 1.5])
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assert layout.has_mixed_scale() is False
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def test_has_mixed_scale_none_for_single_or_unknown(monkeypatch) -> None:
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layout._MIXED_SCALE_CACHE.clear()
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monkeypatch.setattr(layout, "detect_monitor_scales", lambda: [1.0])
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assert layout.has_mixed_scale() is None
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layout._MIXED_SCALE_CACHE.clear()
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monkeypatch.setattr(layout, "detect_monitor_scales", lambda: None)
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assert layout.has_mixed_scale() is None
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def test_has_mixed_scale_is_cached(monkeypatch) -> None:
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# Second call must not re-probe (cached for the process lifetime).
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layout._MIXED_SCALE_CACHE.clear()
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calls = {"n": 0}
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def _probe():
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calls["n"] += 1
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return [1.3, 1.0]
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monkeypatch.setattr(layout, "detect_monitor_scales", _probe)
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assert layout.has_mixed_scale() is True
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assert layout.has_mixed_scale() is True
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assert calls["n"] == 1
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def test_kde_monitor_scales_parses_outputs(monkeypatch) -> None:
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import json
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class _Proc:
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returncode = 0
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stdout = json.dumps(
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{
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"outputs": [
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{"name": "eDP-1", "enabled": True, "scale": 1.3},
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{"name": "HDMI-A-1", "enabled": True, "scale": 1.0},
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{"name": "DP-9", "enabled": False, "scale": 2.0}, # ignored
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]
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}
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)
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monkeypatch.setattr(layout.shutil, "which", lambda _n: "/usr/bin/kscreen-doctor")
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monkeypatch.setattr(layout.subprocess, "run", lambda *a, **k: _Proc())
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assert layout._kde_monitor_scales() == [1.3, 1.0]
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