import { describe, expect, it } from 'vitest';
import { sanitizePolicyDefaults } from '../policy-defaults';

describe('sanitizePolicyDefaults (#1248)', () => {
  it('keeps plain values', () => {
    expect(sanitizePolicyDefaults({ showSharedMailAccounts: false, emailsPerPage: 25, deleteAction: 'trash' }))
      .toEqual({ showSharedMailAccounts: false, emailsPerPage: 25, deleteAction: 'trash' });
  });

  it('drops lists, maps, null and numbers that are not finite', () => {
    expect(sanitizePolicyDefaults({ a: [], b: { c: 1 }, d: null, e: Number.NaN, f: Infinity })).toEqual({});
  });

  it('drops prototype keys', () => {
    const out = sanitizePolicyDefaults(JSON.parse('{"__proto__": "x", "constructor": "y", "ok": true}'));
    expect(Object.keys(out)).toEqual(['ok']);
    expect(Object.getPrototypeOf(out)).toBe(Object.prototype);
  });

  it('turns a missing or malformed section into an empty one', () => {
    expect(sanitizePolicyDefaults(undefined)).toEqual({});
    expect(sanitizePolicyDefaults(null)).toEqual({});
    expect(sanitizePolicyDefaults(['x'])).toEqual({});
    expect(sanitizePolicyDefaults('x')).toEqual({});
  });
});