text: import unittest
  import os
  
  from networkit import *
  
  
  class Test_CommunityDetection(unittest.TestCase):
  
  	def setUp(self):
  		self.G = readGraph("input/PGPgiantcompo.graph",Format.METIS)
  
  	def test_PLM(self):
  		comms = community.detectCommunities(self.G, community.PLM(self.G))
  
  		# each node must be assigned
  		for v in self.G.nodes():
  			self.assertTrue(comms.contains(v))
  
  	def test_CutClustering(self):
  		jazz = readGraph("input/jazz.graph",Format.METIS)
  
  		cc = community.CutClustering(jazz,0.5076142131979697)
  
  		comms = community.detectCommunities(jazz, cc)
  		self.assertEqual(193, comms.numberOfSubsets())
  
  		hierarchy = community.CutClustering.getClusterHierarchy(jazz)
  		self.assertEqual(3, len(hierarchy))
  
  