def test_all_rotations_from_string():
rotations = [['^', 'B', 'A', 'N', 'A', 'N', 'A', '|'],
['|', '^', 'B', 'A', 'N', 'A', 'N', 'A'],
['A', '|', '^', 'B', 'A', 'N', 'A', 'N'],
['N', 'A', '|', '^', 'B', 'A', 'N', 'A'],
['A', 'N', 'A', '|', '^', 'B', 'A', 'N'],
['N', 'A', 'N', 'A', '|', '^', 'B', 'A'],
['A', 'N', 'A', 'N', 'A', '|', '^', 'B'],
['B', 'A', 'N', 'A', 'N', 'A', '|', '^']]
r = BWT.all_rotations_from_string("^Banana|".upper())
assert_that(r, is_(rotations))
def test_transform_dna():
bwt = BWT("ataata")
assert_that(bwt.get_transform(), is_("atta$aa"))
def test_transform():
original_string = "homolog.us"
bwt = BWT(original_string)
assert_that(bwt.get_transform(), is_("sgo$oolmhu."))
assert_that(bwt.inverse_bwt(), is_(original_string))
