def test_emptyStrings(self):
"""
Test emtpy strings using default values
:return:
"""
ed = DistanceCalculator()
self.assertEqual(ed.distance('', ''), 0)
self.assertEqual(ed.distance('a', ''), 1)
self.assertEqual(ed.distance('', 'a'), 1)
def test_levensteinDistance(self):
ed = DistanceCalculator()
self.assertEqual(ed.distance('book', 'books'), 1)
self.assertEqual(ed.distance('book', 'back'), 2)
self.assertEqual(ed.distance('books', 'book'), 1)
def test_nonStandardDistances(self):
ed = DistanceCalculator(2, 2, 4)
self.assertEqual(ed.distance('book', 'books'), 2)
self.assertEqual(ed.distance('book', 'back'), 4)
self.assertEqual(ed.distance('books', 'book'), 2)
def test_sameStrings(self):
ed = DistanceCalculator()
self.assertEqual(ed.distance('abc', 'abc'), 0)