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Diffstat (limited to 'spec/ruby/library/matrix/normal_spec.rb')
-rw-r--r-- | spec/ruby/library/matrix/normal_spec.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/normal_spec.rb b/spec/ruby/library/matrix/normal_spec.rb new file mode 100644 index 0000000000..140909dcc2 --- /dev/null +++ b/spec/ruby/library/matrix/normal_spec.rb @@ -0,0 +1,26 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'matrix' + +describe "Matrix.normal?" do + # it "returns false for non normal matrices" do + # Matrix[[0, 1], [1, 2]].normal?.should == false + # end + + it "returns true for normal matrices" do + Matrix[[1, 1, 0], [0, 1, 1], [1, 0, 1]].normal?.should == true + Matrix[[0, Complex(0, 2)], [Complex(0, -2), 0]].normal?.should == true + end + + it "raises an error for rectangular matrices" do + [ + Matrix[[0], [0]], + Matrix[[0, 0]], + Matrix.empty(0, 2), + Matrix.empty(2, 0), + ].each do |rectangual_matrix| + lambda { + rectangual_matrix.normal? + }.should raise_error(Matrix::ErrDimensionMismatch) + end + end +end |