def testFindDistanceZero(self):
"""
findDistance must return the right distance if codons are identical.
"""
distance = findDistance("ACA", "ACA")
self.assertEqual(0, distance)
def testFindDistanceZero(self):
"""
findDistance must return the right distance if codons are identical.
"""
distance = findDistance('ACA', 'ACA')
self.assertEqual(0, distance)
def testFindDistanceThree(self):
"""
findDistance must return the right distance if codons are different.
"""
distance = findDistance("ACA", "TGT")
self.assertEqual(3, distance)
def testFindDistanceThree(self):
"""
findDistance must return the right distance if codons are different.
"""
distance = findDistance('ACA', 'TGT')
self.assertEqual(3, distance)
