old_contents: import unittest
  from numpy import exp, sin, cos
  
  from cxroots import Circle
  from cxroots.tests.ApproxEqual import roots_approx_equal
  
  class TestGuessRootSymmetry(unittest.TestCase):
  	def setUp(self):
  		self.C = Circle(0, 3)
  		self.f = lambda z: z**4 + z**3 + z**2 + z
  
  		self.roots = [0,-1,1j,-1j]
  		self.multiplicities = [1,1,1,1]
  
  	def test_guessRootSymmetry_1(self):
  		symmetry = lambda z: [z.conjugate()]
  		roots_approx_equal(self.C.roots(self.f, verbose=True, guessRootSymmetry=symmetry), (self.roots, self.multiplicities), decimal=12)
  
  	def test_guessRootSymmetry_2(self):
  		# wrong symmetry
  		symmetry = lambda z: [z+1]
  		roots_approx_equal(self.C.roots(self.f, verbose=True, guessRootSymmetry=symmetry), (self.roots, self.multiplicities), decimal=12)
  
  
  if __name__ == '__main__':
  	unittest.main()
  
new_contents: import unittest
  
  from cxroots import Circle
  from cxroots.tests.ApproxEqual import roots_approx_equal
  
  class TestGuessRootSymmetry(unittest.TestCase):
  	def setUp(self):
  		self.C = Circle(0, 3)
  		self.f = lambda z: z**4 + z**3 + z**2 + z
  
  		self.roots = [0,-1,1j,-1j]
  		self.multiplicities = [1,1,1,1]
  
  	def test_guessRootSymmetry_1(self):
  		symmetry = lambda z: [z.conjugate()]
  		roots_approx_equal(self.C.roots(self.f, verbose=True, guessRootSymmetry=symmetry), (self.roots, self.multiplicities), decimal=12)
  
  	def test_guessRootSymmetry_2(self):
  		# wrong symmetry
  		symmetry = lambda z: [z+1]
  		roots_approx_equal(self.C.roots(self.f, verbose=True, guessRootSymmetry=symmetry), (self.roots, self.multiplicities), decimal=12)
  
  
  if __name__ == '__main__':
  	unittest.main()
  
subject: Remove unecessary imports