import { Sys } from "../deps.ts";
import { describe, expect, it, mockfn } from "../deps.testing.ts";
import { Runner } from "./run.ts";

describe(Runner, () => {
  it("works with a file timestamp", async () => {
    async function check(stat: any, expected: boolean) {
      const sys = {
        stat: mockfn(() => stat),
        writeTextFile: mockfn(),
      };
      const runner = new Runner(sys as typeof Sys);
      const path = "/tmp/thunderk-run-run-test.stamp";

      const result = await runner.checkStamp("run-test");
      expect(result).toBe(expected);
      expect(sys.stat).toHaveBeenLastCalledWith(path);
      if (expected) {
        expect(sys.writeTextFile).not.toHaveBeenCalled();
      } else {
        expect(sys.writeTextFile).toHaveBeenLastCalledWith(path, "");
      }
    }

    await check({ isFile: false }, false);
    await check({ isFile: true, mtime: new Date(2000, 1, 1) }, false);
    await check({ isFile: true, mtime: new Date() }, true);
  });
});