import { describe, expect, it } from "vitest";
import { bytesEqual, createStepLog, dirOf } from "./selfTestSteps";

describe("createStepLog", () => {
  it("records passes, expectation failures and throws without throwing itself", async () => {
    let t = 0;
    const log = createStepLog(() => (t += 10));
    await log.run("a", async () => "fine");
    await log.run("b", async () => ({ ok: false, detail: "wrong" }));
    await log.run("c", async () => {
      throw new Error("boom");
    });
    expect(log.steps).toEqual([
      { name: "a", ok: true, ms: 10, detail: "fine" },
      { name: "b", ok: false, ms: 10, detail: "wrong" },
      { name: "c", ok: false, ms: 10, detail: "Error: boom" },
    ]);
  });
});

describe("dirOf / bytesEqual", () => {
  it("splits posix and windows paths", () => {
    expect(dirOf("/tmp/x/report.json")).toBe("/tmp/x");
    expect(dirOf("C:\\out\\report.json")).toBe("C:\\out");
    expect(dirOf("/report.json")).toBe("/");
    expect(dirOf("report.json")).toBe("");
  });
  it("compares bytes", () => {
    expect(bytesEqual(new Uint8Array([1, 2]), new Uint8Array([1, 2]))).toBe(true);
    expect(bytesEqual(new Uint8Array([1, 2]), new Uint8Array([1, 3]))).toBe(false);
    expect(bytesEqual(new Uint8Array([1]), new Uint8Array([1, 2]))).toBe(false);
  });
});