@Test
  public void shouldProvidePeakForEachStream() {
    MeasurementStream stream = mock(MeasurementStream.class);
    when(stream.getPeak()).thenReturn(11.0);
    String name = sensor.getSensorName();
    when(stream.getSensorName()).thenReturn(name);
    sessionManager.session.add(stream);

    assertThat(sessionManager.getPeak(sensor), equalTo(11.0));
  }
  @Test
  public void shouldStoreLastMeasurementForEachSensor() {
    triggerMeasurement("LHC", 150);
    triggerMeasurement("LHC2", 123);

    Sensor sensor2 = mock(Sensor.class);
    when(sensor2.getSensorName()).thenReturn("LHC2");

    assertThat(sessionManager.getNow(sensor), equalTo(150.0));
    assertThat(sessionManager.getNow(sensor2), equalTo(123.0));
  }
  private void mockSensors() {
    sessionManager.locationHelper = mock(LocationHelper.class);
    sessionManager.audioReader = mock(SimpleAudioReader.class);
    sessionManager.externalSensors = mock(ExternalSensors.class);
    sessionManager.eventBus = mock(EventBus.class);
    sessionManager.sensorManager = mock(SensorManager.class);

    sensor = mock(Sensor.class);
    when(sensor.isEnabled()).thenReturn(true);
    when(sensor.getSensorName()).thenReturn("LHC");

    when(sessionManager.locationHelper.getLastLocation()).thenReturn(location);
    when(sessionManager.sensorManager.getSensorByName(Mockito.any(String.class)))
        .thenReturn(sensor);
  }