import { formatRssi, normalizeRssi } from '../src/ble/rssi';

describe('RSSI dBm helpers', () => {
  it('keeps valid BLE RSSI values as dBm', () => {
    expect(normalizeRssi(-63)).toBe(-63);
    expect(formatRssi(-63)).toBe('-63 dBm');
  });

  it('hides Android sentinel and impossible RSSI values', () => {
    expect(normalizeRssi(-2147483648)).toBeNull();
    expect(normalizeRssi(127)).toBeNull();
    expect(formatRssi(-2147483648)).toBe('sem leitura');
  });
});