import { Sys } from "./deno.ts";
import { describe, expect, it, mock } from "../deps.testing.ts";

describe("Sys", () => {
  it("is mockable", () => {
    function runSomething() {
      Sys.run({ cmd: ["echo", "test"] });
    }

    expect(runSomething).toThrow(
      'Requires run access to "echo", run again with the --allow-run flag',
    );

    mock(Sys, "run", undefined, (run) => {
      runSomething();
      expect(run).toHaveBeenCalledTimes(1);
      expect(run).toHaveBeenCalledWith({ cmd: ["echo", "test"] });
    });
  });
});