2 $:.unshift File.join(File.dirname(__FILE__), '..', '..')
4 # Copyright (C) 2007-2010 Martin A. Hansen.
6 # This program is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU General Public License
8 # as published by the Free Software Foundation; either version 2
9 # of the License, or (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 # http://www.gnu.org/copyleft/gpl.html
22 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
24 # This software is part of the Biopieces framework (www.biopieces.org).
26 # >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
33 class TestBits < Test::Unit::TestCase
34 test "#hamming_distance with uneven lengths raises" do
35 assert_raise(StringError) { "ATCG".hamming_distance("A") }
38 test "#hamming_distance returns correctly" do
39 assert_equal(0, "ATCG".hamming_distance("ATCG"))
40 assert_equal(1, "ATCX".hamming_distance("ATCG"))
41 assert_equal(2, "ATXX".hamming_distance("ATCG"))
42 assert_equal(2, "ATcg".hamming_distance("ATCG"))
43 assert_equal(3, "AXXX".hamming_distance("ATCG"))
44 assert_equal(4, "XXXX".hamming_distance("ATCG"))
47 test "#& returns correctly" do
48 assert_equal("ABCD", "abcd" & "____")
51 test "#| returns correctly" do
52 assert_equal("abcd", "ab " | " cd")
55 test "#^ returns correctly" do
56 assert_equal("ABCD", "ab " ^ " cd")