from test_est_row_actions import run_js


def test_change_reset_restores_machine_details_and_preserves_legacy_machine_rows():
    result = run_js("""(() => {
      const p=EstNative.empty();
      p.tables.MachMainDat=[{PkID:1,Index:1,Code:'M1'}, {PkID:2,Index:-2,GN:2,GN_:123,TU:100}];
      const q=EstBusiness.baseline(p);
      q.tables.MachMainDat[1].GN=9;
      const state={project:q};
      globalThis.confirm=()=>true;globalThis.EstApp={change:fn=>fn()};
      EstBlockActions.resetChangeAction(state);
      const restored=q.tables.MachMainDat[1].GN, original=q.tables.MachMainDat[1].GN_;
      const legacy=EstBusiness.baseline(p);
      delete legacy.baseline.tables.MachMainDat;
      legacy.tables.MachMainDat[1].GN=7;legacy.tables.MachMainDat[1].GN_=123;
      EstBlockActions.resetChangeAction({project:legacy});
      return {restored, original, legacy:legacy.tables.MachMainDat[1].GN,
        legacyOriginal:legacy.tables.MachMainDat[1].GN_};
    })()""")
    assert result == {"restored": 2, "original": 123, "legacy": 7, "legacyOriginal": 123}