@Test
  public void shouldNotStopSensorsDuringASession() {
    sessionManager.startMobileSession(false);
    sessionManager.stopSensors();

    verify(sessionManager.locationHelper, never()).stop();
    verify(sessionManager.audioReader, never()).stop();
    assertThat(sessionManager.isSessionStarted(), equalTo(true));
  }
  @Test
  public void shouldStopSensors() {
    sessionManager.startSensors();
    sessionManager.stopSensors();

    verify(sessionManager.audioReader).stop();
    verify(sessionManager.locationHelper).stop();
    assertThat(sessionManager.isSessionStarted(), equalTo(false));
  }