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// @vitest-environment jsdom
import { describe, expect, it } from "vitest";
import * as canvasHud from "./canvas-hud";
type HudPage = "overview" | "navigation" | "news" | "todo";
type Rectangle = {
style: string;
args: [number, number, number, number];
};
type TextRecord = {
style: string;
font: string;
value: string;
};
type PathRecord = {
style: string;
width: number;
points: Array<[number, number]>;
};
function renderHud(page?: HudPage) {
const rectangles: Rectangle[] = [];
const texts: TextRecord[] = [];
const strokedPaths: PathRecord[] = [];
const filledPaths: PathRecord[] = [];
let fillStyle = "";
let strokeStyle = "";
let lineWidth = 1;
let currentPath: Array<[number, number]> = [];
const context = {
imageSmoothingEnabled: true,
font: "",
textAlign: "start",
textBaseline: "alphabetic",
lineCap: "butt",
lineJoin: "miter",
get fillStyle() {
return fillStyle;
},
set fillStyle(value: string | CanvasGradient | CanvasPattern) {
fillStyle = String(value);
},
get strokeStyle() {
return strokeStyle;
},
set strokeStyle(value: string | CanvasGradient | CanvasPattern) {
strokeStyle = String(value);
},
get lineWidth() {
return lineWidth;
},
set lineWidth(value: number) {
lineWidth = value;
},
fillRect: (x: number, y: number, width: number, height: number) => {
rectangles.push({ style: fillStyle, args: [x, y, width, height] });
},
fillText: (value: string) => {
texts.push({ style: fillStyle, font: context.font, value });
},
beginPath: () => {
currentPath = [];
},
moveTo: (x: number, y: number) => {
currentPath.push([x, y]);
},
lineTo: (x: number, y: number) => {
currentPath.push([x, y]);
},
closePath: () => undefined,
stroke: () => {
strokedPaths.push({
style: strokeStyle,
width: lineWidth,
points: [...currentPath],
});
},
fill: () => {
filledPaths.push({
style: fillStyle,
width: 0,
points: [...currentPath],
});
},
};
const canvas = {
width: 0,
height: 0,
getContext: () => context,
} as unknown as HTMLCanvasElement;
canvasHud.drawDenseCanvasHud(
canvas,
new Date(2026, 6, 26, 14, 37, 42),
page,
);
return {
canvas,
rectangles,
texts,
values: texts.map(({ value }) => value),
strokedPaths,
filledPaths,
};
}
describe("dense Canvas HUD", () => {
it("defaults to a non-navigation news overview", () => {
const hud = renderHud();
expect(canvasHud.HUD_PAGES).toEqual([
"overview",
"navigation",
"news",
"todo",
]);
expect(hud.values).toEqual(expect.arrayContaining([
"14:37:42",
"HONGDAE 23°C 맑음",
"NE 047°",
"01 / 04",
"NEWS // LOCAL 01",
"2호선 정상 운행",
"홍대입구역 혼잡도",
"보통",
"BRIEF // 02",
"오늘 23°C · 맑음",
"강수 10%",
"-24 dBFS",
"TODO // ACTIVE",
]));
expect(hud.values).not.toContain("NAV // ROUTE 01");
expect(hud.values).not.toContain("다음 교차로");
expect(hud.values).not.toContain("우회전");
});
it("wraps page navigation in both directions", () => {
const getAdjacentHudPage = (
canvasHud as unknown as {
getAdjacentHudPage?: (
page: HudPage,
direction: "next" | "previous",
) => HudPage;
}
).getAdjacentHudPage;
expect(getAdjacentHudPage).toBeTypeOf("function");
if (!getAdjacentHudPage) return;
expect(getAdjacentHudPage("overview", "next")).toBe("navigation");
expect(getAdjacentHudPage("todo", "next")).toBe("overview");
expect(getAdjacentHudPage("overview", "previous")).toBe("todo");
});
it("keeps the approved navigation dashboard on its own page", () => {
const hud = renderHud("navigation");
expect(hud.values).toEqual(expect.arrayContaining([
"02 / 04",
"MAP // LOCAL 120m",
"NAV // ROUTE 01",
"120m",
"다음 교차로",
"우회전",
"TODO // ACTIVE",
]));
expect(hud.strokedPaths).toEqual(expect.arrayContaining([
expect.objectContaining({ style: "#aaaaaa", width: 6 }),
expect.objectContaining({ style: "#ffffff", width: 2 }),
expect.objectContaining({ style: "#aaaaaa", width: 8 }),
expect.objectContaining({ style: "#ffffff", width: 3 }),
]));
});
it("gives news a large focused page", () => {
expect(renderHud("news").values).toEqual(expect.arrayContaining([
"03 / 04",
"NEWS // FOCUS",
"2호선 정상 운행",
"홍대입구역 혼잡도 보통",
"오늘 23°C · 맑음",
"강수 확률 10%",
]));
});
it("gives tasks and device status a large focused page", () => {
const hud = renderHud("todo");
expect(hud.values).toEqual(expect.arrayContaining([
"04 / 04",
"TODO // FOCUS",
"지하철역으로 이동",
"우산 챙기기",
"경로 확인",
"AUDIO // STATUS",
"LINK // G2 + R1",
]));
expect(hud.strokedPaths).toEqual(expect.arrayContaining([
expect.objectContaining({ style: "#ffffff", width: 2 }),
]));
});
it("preserves display size, palette, map layering, and Canvas checkboxes", () => {
const hud = renderHud();
const paintedStyles = [
...hud.rectangles.map(({ style }) => style),
...hud.texts.map(({ style }) => style),
...hud.strokedPaths.map(({ style }) => style),
...hud.filledPaths.map(({ style }) => style),
];
expect(hud.canvas.width).toBe(576);
expect(hud.canvas.height).toBe(288);
expect(new Set(paintedStyles)).toEqual(new Set([
"#000000",
"#ffffff",
"#aaaaaa",
"#555555",
]));
expect(hud.rectangles).toEqual(expect.arrayContaining([
{ style: "#000000", args: [0, 0, 576, 288] },
{ style: "#555555", args: [8, 72, 16, 1] },
{ style: "#555555", args: [204, 72, 16, 1] },
{ style: "#555555", args: [404, 72, 16, 1] },
{ style: "#555555", args: [404, 142, 16, 1] },
{ style: "#555555", args: [552, 279, 16, 1] },
{ style: "#ffffff", args: [416, 190, 12, 12] },
{ style: "#000000", args: [419, 193, 6, 6] },
{ style: "#aaaaaa", args: [416, 255, 10, 10] },
{ style: "#000000", args: [419, 258, 4, 4] },
]));
expect(hud.strokedPaths).toEqual(expect.arrayContaining([
expect.objectContaining({ style: "#aaaaaa", width: 6 }),
expect.objectContaining({ style: "#ffffff", width: 2 }),
expect.objectContaining({
style: "#ffffff",
width: 2,
points: [[418, 260], [420, 263], [425, 257]],
}),
]));
expect(hud.filledPaths.length).toBeGreaterThanOrEqual(1);
expect(hud.texts.find(({ value }) => value === "14:37:42")?.font)
.toContain("22px");
for (const forbiddenValue of [
"14:37",
"MISSION ACTIVE",
"ROUTE UPDATED",
"ACC",
"X +0.12",
"Y -0.03",
"Z +0.98",
]) {
expect(hud.values).not.toContain(forbiddenValue);
}
});
});