import { readFileSync } from "node:fs";
import { join } from "node:path";
import { describe, expect, it } from "@suaveplan/testing/runner";

describe("tree-shake", () => {
    it("sideEffects is false", { timeout: 5000 }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { sideEffects?: boolean };
        expect(pkg.sideEffects).toBe(false);
    });

    it("exports has at least 5 entries", { timeout: 5000 }, () => {
        const pkg = JSON.parse(
            readFileSync(join(__dirname, "..", "package.json"), "utf8")
        ) as { exports?: Record<string, unknown> };
        expect(pkg.exports).toBeDefined();
        expect(Object.keys(pkg.exports ?? {}).length).toBeGreaterThanOrEqual(5);
        expect(pkg.exports).toHaveProperty(".");
        expect(pkg.exports).toHaveProperty("./compatibility");
        expect(pkg.exports).toHaveProperty("./registry");
        expect(pkg.exports).toHaveProperty("./errors");
    });
});