import { describe, expect, it } from "@suaveplan/testing/runner";
import {
    clamp,
    isFiniteNumber,
    roundAlpha,
    roundChannel,
    roundPercent,
} from "./utils.js";

describe("utils", () => {
    it("clamp restricts to range", { timeout: 5000 }, () => {
        expect(clamp(5, 0, 10)).toBe(5);
        expect(clamp(-5, 0, 10)).toBe(0);
        expect(clamp(15, 0, 10)).toBe(10);
    });

    it("isFiniteNumber rejects non-finite", { timeout: 5000 }, () => {
        expect(isFiniteNumber(5)).toBe(true);
        expect(isFiniteNumber(Number.NaN)).toBe(false);
        expect(isFiniteNumber(Number.POSITIVE_INFINITY)).toBe(false);
        expect(isFiniteNumber("5")).toBe(false);
    });

    it("roundChannel clamps to 0-255", { timeout: 5000 }, () => {
        expect(roundChannel(128.6)).toBe(129);
        expect(roundChannel(-10)).toBe(0);
        expect(roundChannel(300)).toBe(255);
    });

    it("roundPercent clamps to 0-100", { timeout: 5000 }, () => {
        expect(roundPercent(50.4)).toBe(50);
        expect(roundPercent(-5)).toBe(0);
        expect(roundPercent(105)).toBe(100);
    });

    it("roundAlpha clamps to 0-1", { timeout: 5000 }, () => {
        expect(roundAlpha(0.5)).toBe(0.5);
        expect(roundAlpha(-0.1)).toBe(0);
        expect(roundAlpha(1.1)).toBe(1);
    });
});