from gpu_rent.remote.clone_ext import do_update, is_sha


def test_is_sha():
    assert is_sha("a" * 40)
    assert not is_sha("main")


def test_do_update_reads_flag(tmp_path, monkeypatch):
    flag = tmp_path / "gpu-rent-update-git"
    monkeypatch.setattr("gpu_rent.remote.clone_ext.UPDATE_PATH", flag)
    flag.write_text("0\n", encoding="utf-8")
    assert do_update() is False
    flag.write_text("1\n", encoding="utf-8")
    assert do_update() is True