import { describe, it, expect } from "vitest";
import path from "node:path";
import os from "node:os";
import fs from "node:fs";
import { readWorkspacePackages } from "./_workspace.js";

function writeWorkspaceYaml(contents) {
  const dir = fs.mkdtempSync(path.join(os.tmpdir(), "workspace-"));
  const filepath = path.join(dir, "pnpm-workspace.yaml");
  fs.writeFileSync(filepath, contents);
  return { dir, filepath };
}

describe("_workspace", () => {
  it("returns the list of declared package globs", () => {
    const { dir } = writeWorkspaceYaml(
      `packages:
  - "apps/*"
  - "packages/*"
`,
    );
    expect(readWorkspacePackages(dir)).toEqual(["apps/*", "packages/*"]);
  });

  it("returns [] when pnpm-workspace.yaml is missing", () => {
    const dir = fs.mkdtempSync(path.join(os.tmpdir(), "workspace-"));
    expect(readWorkspacePackages(dir)).toEqual([]);
  });

  it("returns [] when packages key is absent", () => {
    const { dir } = writeWorkspaceYaml(`# empty\n`);
    expect(readWorkspacePackages(dir)).toEqual([]);
  });
});