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Contents
require(File.dirname(__FILE__)+'/test_helpers.rb') class StatsamplePermutationTestCase < MiniTest::Unit::TestCase context Statsample::Permutation do should "initialize with number" do per1=Statsample::Permutation.new(2) exp1=[[0,1],[1,0]] assert_equal(exp1,per1.permutations) per2=Statsample::Permutation.new(3) exp2=[[0,1,2],[0,2,1],[1,0,2],[1,2,0],[2,0,1],[2,1,0]] assert_equal(exp2,per2.permutations) end should "initialize with simple array" do per1=Statsample::Permutation.new(%w{a b}) exp1=[['a','b'],['b','a']] assert_equal(exp1,per1.permutations) per2=Statsample::Permutation.new(%w{a b c}) exp2=[%w{a b c},%w{a c b},%w{b a c} ,%w{b c a},%w{c a b},%w{c b a}] assert_equal(exp2,per2.permutations) end should "initialize with Statsample::Vector" do per2=Statsample::Permutation.new(%w{a b c}.to_vector) exp2=[%w{a b c},%w{a c b},%w{b a c} ,%w{b c a},%w{c a b},%w{c b a}] assert_equal(exp2, per2.permutations) end should "calculate correct number of total permutations without repetitions" do per1=Statsample::Permutation.new(4) assert_equal(24,per1.permutation_number) end should "calculate correct number of total permutations with repetitions" do per2=Statsample::Permutation.new([1,1,1,0,0,0]) assert_equal(20,per2.permutation_number) end should "initialize with array repeated" do per1=Statsample::Permutation.new([0,0,1,1]) exp1=[[0,0,1,1],[0,1,0,1],[0,1,1,0],[1,0,0,1],[1,0,1,0],[1,1,0,0]] assert_equal(exp1,per1.permutations) end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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statsample-0.10.0 | test/test_permutation.rb |