def test_unwind(self):
     from math import pi
     value = Indexer.unwind(2*pi - 0.1)
     self.assertAlmostEqual(-0.1, value)
     value = Indexer.unwind(0.1)
     self.assertAlmostEqual(0.1, value)
     value = Indexer.unwind(-0.1)
     self.assertAlmostEqual(-0.1, value)
     value = Indexer.unwind(0.1 - 2*pi)
     self.assertAlmostEqual(0.1, value)
 def test_unwind(self):
     from math import pi
     value = Indexer.unwind(2 * pi - 0.1)
     self.assertAlmostEqual(-0.1, value)
     value = Indexer.unwind(0.1)
     self.assertAlmostEqual(0.1, value)
     value = Indexer.unwind(-0.1)
     self.assertAlmostEqual(-0.1, value)
     value = Indexer.unwind(0.1 - 2 * pi)
     self.assertAlmostEqual(0.1, value)