diff options
Diffstat (limited to 'spec/ruby/library/matrix/lup_decomposition/p_spec.rb')
| -rw-r--r-- | spec/ruby/library/matrix/lup_decomposition/p_spec.rb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/lup_decomposition/p_spec.rb b/spec/ruby/library/matrix/lup_decomposition/p_spec.rb new file mode 100644 index 0000000000..837b65a915 --- /dev/null +++ b/spec/ruby/library/matrix/lup_decomposition/p_spec.rb @@ -0,0 +1,18 @@ +require File.expand_path('../../../../spec_helper', __FILE__) +require 'matrix' + +describe "Matrix::LUPDecomposition#p" do + before :each do + @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]] + @lu = Matrix::LUPDecomposition.new(@a) + @p = @lu.p + end + + it "returns the third element of to_a" do + @p.should == @lu.to_a[2] + end + + it "returns a permutation matrix" do + @p.permutation?.should be_true + end +end |