docstr: Test score threshold=0
docstr_tok: ["Test","score","threshold=0"]
code: def test_threshold(self):
      """
      Test score threshold=0
      """
      detector = AnomalyDetector(self.s1, score_threshold=0)
      self.assertTrue(len(detector.get_anomalies()) == 1)
      self.assertTrue(detector.get_anomalies() is not None)
  
imports: import os
  import sys
  import unittest
  from luminol import exceptions
  from luminol.anomaly_detector import AnomalyDetector
  from luminol.modules.time_series import TimeSeries
  from luminol.algorithms.anomaly_detector_algorithms import AnomalyDetectorAlgorithm
label_desc: Use image node_id 8 for calling the TestAnomalyDetector obj's underlying member method code with example usage: obj.test_threshold() without return types