import { describe, expect, it } from "vite-plus/test"; import {  resizeBrowserViewportFromRail,  resizeFreeformViewport,  resolveBrowserDeviceViewportLayout,  resolveFittedBrowserViewport,  resolveBrowserViewportLayout,  resolveResponsiveBrowserViewportSize,} from "./browserViewportLayout"; describe("resolveBrowserViewportLayout", () => {  it("uses the current fixed viewport instead of stale fitted source dimensions", () => {    expect(      resolveFittedBrowserViewport(        { _tag: "freeform", width: 900, height: 600 },        { width: 1280, height: 800, scale: 1 },      ),    ).toEqual({ _tag: "freeform", width: 900, height: 600 });  });   it("preserves the last logical viewport when fitting a fill-mode surface", () => {    expect(      resolveFittedBrowserViewport({ _tag: "fill" }, { width: 320, height: 200, scale: 0.25 }),    ).toEqual({ _tag: "freeform", width: 1280, height: 800 });  });   it("fills the available surface in fill mode", () => {    expect(resolveBrowserViewportLayout({ width: 700, height: 500 }, { _tag: "fill" })).toEqual({      canvasWidth: 700,      canvasHeight: 500,      viewportX: 0,      viewportY: 0,      viewportWidth: 700,      viewportHeight: 500,      viewportScale: 1,      fillsPanel: true,    });  });   it("centers a smaller fixed viewport", () => {    expect(      resolveBrowserViewportLayout(        { width: 700, height: 1000 },        { _tag: "freeform", width: 393, height: 852 },      ),    ).toMatchObject({      canvasWidth: 700,      canvasHeight: 1000,      viewportX: 154,      viewportY: 74,      viewportWidth: 393,      viewportHeight: 852,    });  });   it("scales a larger fixed viewport down to fit without creating overflow", () => {    const layout = resolveBrowserViewportLayout(      { width: 600, height: 700 },      { _tag: "freeform", width: 1440, height: 900 },    );    expect(layout).toMatchObject({      canvasWidth: 600,      canvasHeight: 700,      viewportX: 0,      viewportY: 163,      viewportWidth: 600,      viewportHeight: 375,    });    expect(layout.viewportScale).toBeCloseTo(5 / 12);  });   it("keeps fixed dimensions in page CSS pixels when browser zoom changes", () => {    expect(      resolveBrowserViewportLayout(        { width: 800, height: 700 },        { _tag: "freeform", width: 400, height: 300 },        1.5,      ),    ).toMatchObject({      viewportX: 100,      viewportY: 125,      viewportWidth: 600,      viewportHeight: 450,    });    expect(resizeFreeformViewport({ width: 400, height: 300 }, { x: 150, y: 75 }, 1.5)).toEqual({      width: 500,      height: 350,    });  });   it("bounds freeform drag sizes and total render area", () => {    expect(resizeFreeformViewport({ width: 1024, height: 768 }, { x: -2000, y: -2000 })).toEqual({      width: 240,      height: 240,    });    const large = resizeFreeformViewport({ width: 1920, height: 1080 }, { x: 2000, y: 2000 });    expect(large.width * large.height).toBeLessThanOrEqual(3840 * 2160);  });   it("resizes only the axes controlled by each edge", () => {    expect(      resizeFreeformViewport({ width: 800, height: 600 }, { x: -100, y: 500 }, 1, "west"),    ).toEqual({ width: 900, height: 600 });    expect(      resizeFreeformViewport({ width: 800, height: 600 }, { x: 500, y: 100 }, 1, "north"),    ).toEqual({ width: 800, height: 500 });    expect(      resizeFreeformViewport({ width: 800, height: 600 }, { x: -100, y: -50 }, 1, "northwest"),    ).toEqual({ width: 900, height: 650 });  });   it("preserves a locked aspect ratio from either axis", () => {    expect(      resizeFreeformViewport({ width: 800, height: 600 }, { x: 200, y: 0 }, 1, "east", 4 / 3),    ).toEqual({ width: 1000, height: 750 });    expect(      resizeFreeformViewport({ width: 800, height: 600 }, { x: 0, y: 150 }, 1, "south", 4 / 3),    ).toEqual({ width: 1000, height: 750 });  });   it("reserves persistent device-toolbar rails around the guest viewport", () => {    expect(      resolveBrowserDeviceViewportLayout(        { width: 1200, height: 900 },        { _tag: "freeform", width: 1180, height: 858 },      ),    ).toEqual({      canvasWidth: 1200,      canvasHeight: 900,      viewportX: 10,      viewportY: 32,      viewportWidth: 1180,      viewportHeight: 858,      viewportScale: 1,      fillsPanel: false,    });  });   it("captures the available framed area when responsive mode is enabled", () => {    expect(resolveResponsiveBrowserViewportSize({ width: 1200, height: 900 })).toEqual({      width: 1180,      height: 858,    });    expect(resolveResponsiveBrowserViewportSize({ width: 1200, height: 900 }, 2)).toEqual({      width: 590,      height: 429,    });  });   it("keeps the grabbed rail under the pointer across centered layout boundaries", () => {    const available = { width: 1120, height: 818 };    expect(      resizeBrowserViewportFromRail(        { width: 1120, height: 818 },        { x: -100, y: -50 },        available,        1,        "southeast",      ),    ).toEqual({ width: 920, height: 718 });    expect(      resizeBrowserViewportFromRail(        { width: 800, height: 600 },        { x: 300, y: 0 },        { width: 1200, height: 800 },        1,        "east",      ),    ).toEqual({ width: 1300, height: 600 });    expect(      resizeBrowserViewportFromRail(        { width: 560, height: 409 },        { x: -100, y: 0 },        available,        2,        "east",      ),    ).toEqual({ width: 460, height: 409 });  });});