def testBaseNone(self):
"""
The base method must return C{None} for an offset the read does not
have.
"""
ar = AlignedRead('id', '---ACGTACGT--')
self.assertEqual(None, ar.base(0))
def testBase(self):
"""
The base method must return the expected nucleotide.
"""
ar = AlignedRead('id', '---ACGTGCGT--')
self.assertEqual('A', ar.base(3))