import { describe, expect, it } from "vitest";
import { dprForPerformanceFactor } from "./adaptiveGraphicsQualityMath";

describe("adaptive graphics quality", () => {
  it("maps the performance range onto the supported pixel ratio", () => {
    expect(dprForPerformanceFactor(0)).toBe(1);
    expect(dprForPerformanceFactor(0.5)).toBe(1.25);
    expect(dprForPerformanceFactor(1)).toBe(1.5);
  });

  it("clamps out-of-range monitor factors", () => {
    expect(dprForPerformanceFactor(-1)).toBe(1);
    expect(dprForPerformanceFactor(2)).toBe(1.5);
  });
});