2 $:.unshift File.join(File.dirname(__FILE__),'..','lib')
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 def test_Bits_hamming_dist_with_uneven_lengths_raises
35 assert_raises(StringError) { String.hamming_dist("ATCG", "ATC") }
38 def test_Bits_hamming_dist_with_even_lengths_dont_raise
39 assert_nothing_raised { String.hamming_dist("ATCG", "ATCG") }
42 def test_Bits_hamming_dist_returns_correctly
43 assert_equal(0, String.hamming_dist("ATCG", "ATCG"))
44 assert_equal(1, String.hamming_dist("ATCX", "ATCG"))
45 assert_equal(2, String.hamming_dist("ATXX", "ATCG"))
46 assert_equal(2, String.hamming_dist("ATcg", "ATCG"))
47 assert_equal(3, String.hamming_dist("AXXX", "ATCG"))
48 assert_equal(4, String.hamming_dist("XXXX", "ATCG"))
51 def test_Bits_AND_with_equal_length_returns_correctly
52 assert_equal("ABCD", "abcd" & "____")
55 def test_Bits_AND_with_unequal_length_returns_correctly
56 assert_equal("JAPH\n", "japh\nJunk" & '_____')
57 assert_equal("JAPH\n", '_____' & "japh\nJunk")
60 def test_Bits_OR_with_equal_length_returns_correctly
61 assert_equal("abcd", "ab " | " cd")
64 def test_Bits_OR_with_unequal_length_returns_correctly
65 assert_equal("japh\n", "JA" | " ph\n")
66 assert_equal("japh\n", " ph\n" | "JA")
69 def test_Bits_XOR_with_equal_length_returns_correctly
70 assert_equal("ABCD", "ab " ^ " cd")
73 def test_Bits_XOR_with_unequal_length_returns_correctly
74 assert_equal("JAPH", "j p \n" ^ " a h")
75 assert_equal("JAPH", " a h" ^ "j p \n")