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// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Run: node desktop/modules/monitors/test_mon.js
// Mon.js is a QML library, so its .pragma line is stripped before node
// evaluates it.
const fs = require("fs");
const assert = require("assert");
const src = fs.readFileSync(__dirname + "/Mon.js", "utf8").replace(/^\.pragma library$/m, "");
const M = new Function(src + "\nreturn { modes, current, draft, size, xy, lua, file, snap, AUTO };")();
// Duplicates collapse, order kept, the Hz suffix dropped.
assert.deepStrictEqual(M.modes(["1920x1080@60.00Hz", "1920x1080@120.00Hz", "1920x1080@120.00Hz", "1280x720@60.00Hz"]),
["1920x1080@60.00", "1920x1080@120.00", "1280x720@60.00"]);
// The nearest refresh at the same size, not the first.
const lg = ["2560x1080@59.98", "2560x1080@99.94", "2560x1080@74.99", "1920x1080@99.94"];
assert.strictEqual(M.current(lg, 2560, 1080, 99.943), "2560x1080@99.94");
// A mode the list lacks is written from the live numbers.
assert.strictEqual(M.current(lg, 3440, 1440, 60), "3440x1440@60.00");
// A hyprctl monitor as a draft.
const asus = { name: "DP-3", make: "ASUS", model: "VG279Q3A", width: 1920, height: 1080, refreshRate: 100,
scale: 1, transform: 1, vrr: false, x: -1080, y: -960,
availableModes: ["1920x1080@100.00Hz", "1920x1080@60.00Hz"] };
const d = M.draft(asus);
assert.deepStrictEqual([d.mode, d.scale, d.transform, d.vrr, d.position, d.x, d.y],
["1920x1080@100.00", "1", 1, false, "-1080x-960", -1080, -960]);
// Logical size: an odd transform swaps, scale divides.
assert.deepStrictEqual(M.size("1920x1080@100.00", "1", 1), { w: 1080, h: 1920 });
assert.deepStrictEqual(M.size("2560x1440@60.00", "1.25", 0), { w: 2048, h: 1152 });
// Exact positions parse, auto ones fall back to where Hyprland put it.
assert.deepStrictEqual(M.xy({ position: "-1080x-960", x: 0, y: 0 }), { x: -1080, y: -960 });
assert.deepStrictEqual(M.xy({ position: "auto-center-left", x: 5, y: 6 }), { x: 5, y: 6 });
assert.ok(M.AUTO.includes("auto-center-right"));
// One line per monitor; vrr only when on.
assert.strictEqual(M.lua(d),
'hl.monitor({ output = "DP-3", mode = "1920x1080@100.00", position = "-1080x-960", scale = "1", transform = 1 })');
assert.ok(M.lua(Object.assign({}, d, { vrr: true })).endsWith("transform = 1, vrr = 1 })"));
// The file: header, then a comment and a line per monitor.
const f = M.file([d]);
assert.ok(f.startsWith("-- Monitors, written by the keystone settings window"));
assert.ok(f.includes("-- DP-3: ASUS VG279Q3A\n" + M.lua(d) + "\n"));
// Snapping: DP-1 is 2560x1080 at 0,-540. A 1080x1920 monitor dropped with
// its right edge 30px short of DP-1's left edge snaps flush; 200px short
// does not.
const dp1 = [{ x: 0, y: -540, w: 2560, h: 1080 }];
assert.deepStrictEqual(M.snap({ x: -1110, y: -950, w: 1080, h: 1920 }, dp1, 64), { x: -1080, y: -950 });
assert.deepStrictEqual(M.snap({ x: -1280, y: -950, w: 1080, h: 1920 }, dp1, 64), { x: -1280, y: -950 });
// Tops align when close.
assert.deepStrictEqual(M.snap({ x: -1080, y: -520, w: 1080, h: 1920 }, dp1, 64), { x: -1080, y: -540 });
// Results are integers.
assert.deepStrictEqual(M.snap({ x: -1280.6, y: 3000.4, w: 1080, h: 1920 }, dp1, 64), { x: -1281, y: 3000 });
console.log("ok");
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