class BackTrackTest < Test::Unit::TestCase
def setup
# 0 1
# 01234567890123456789
@seq = Seq.new("test", "tacgatgctagcatgcacgg")
class BackTrackTest < Test::Unit::TestCase
def setup
# 0 1
# 01234567890123456789
@seq = Seq.new("test", "tacgatgctagcatgcacgg")