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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
26 lines
721 B
Ruby
26 lines
721 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'matrix'
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describe "Matrix.orthogonal?" do
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it "returns false for non orthogonal matrices" do
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Matrix[[0, 1], [1, 2]].orthogonal?.should == false
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Matrix[[1, 1, 0], [0, 1, 1], [1, 0, 1]].orthogonal?.should == false
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end
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it "returns true for orthogonal matrices" do
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Matrix[[0, 1], [1, 0]].orthogonal?.should == true
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end
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it "raises an error for rectangular matrices" do
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[
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Matrix[[0], [0]],
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Matrix[[0, 0]],
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Matrix.empty(0, 2),
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Matrix.empty(2, 0),
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].each do |rectangual_matrix|
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lambda {
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rectangual_matrix.orthogonal?
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}.should raise_error(Matrix::ErrDimensionMismatch)
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end
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end
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end
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