code_ruby/Maasha/test/test_bits.rb

   1 #!/usr/bin/env ruby
   2
   3 require 'bits'
   4 require 'test/unit'
   5 require 'pp'
   6
   7 class TestBits < Test::Unit::TestCase
   8   def test_Bits_hamming_dist_with_uneven_lengths_raises
   9     assert_raises(StringError) { String.hamming_dist("ATCG", "ATC") }
  10   end
  11
  12   def test_Bits_hamming_dist_with_even_lengths_dont_raise
  13     assert_nothing_raised { String.hamming_dist("ATCG", "ATCG") }
  14   end
  15
  16   def test_Bits_hamming_dist_returns_correctly
  17     assert_equal(0, String.hamming_dist("ATCG", "ATCG"))
  18     assert_equal(1, String.hamming_dist("ATCX", "ATCG"))
  19     assert_equal(2, String.hamming_dist("ATXX", "ATCG"))
  20     assert_equal(2, String.hamming_dist("ATcg", "ATCG"))
  21     assert_equal(3, String.hamming_dist("AXXX", "ATCG"))
  22     assert_equal(4, String.hamming_dist("XXXX", "ATCG"))
  23   end
  24
  25   def test_Bits_AND_with_equal_length_returns_correctly
  26     assert_equal("ABCD", "abcd" & "____")
  27   end
  28
  29   def test_Bits_AND_with_unequal_length_returns_correctly
  30     assert_equal("JAPH\n", "japh\nJunk" & '_____')
  31     assert_equal("JAPH\n", '_____' & "japh\nJunk")
  32   end
  33
  34   def test_Bits_OR_with_equal_length_returns_correctly
  35     assert_equal("abcd", "ab  " | "  cd")
  36   end
  37
  38   def test_Bits_OR_with_unequal_length_returns_correctly
  39     assert_equal("japh\n", "JA" | "  ph\n")
  40     assert_equal("japh\n", "  ph\n" | "JA")
  41   end
  42
  43   def test_Bits_XOR_with_equal_length_returns_correctly
  44     assert_equal("ABCD", "ab  " ^ "  cd")
  45   end
  46
  47   def test_Bits_XOR_with_unequal_length_returns_correctly
  48     assert_equal("JAPH", "j p \n" ^ " a h")
  49     assert_equal("JAPH", " a h" ^ "j p \n")
  50   end
  51 end