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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
31 lines
793 B
Ruby
31 lines
793 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'matrix'
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describe "Matrix#regular?" do
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it "returns false for singular matrices" do
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m = Matrix[ [1,2,3], [3,4,3], [0,0,0] ]
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m.regular?.should be_false
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m = Matrix[ [1,2,9], [3,4,9], [1,2,9] ]
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m.regular?.should be_false
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end
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it "returns true if the Matrix is regular" do
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Matrix[ [0,1], [1,0] ].regular?.should be_true
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end
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it "returns true for an empty 0x0 matrix" do
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Matrix.empty(0,0).regular?.should be_true
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end
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it "raises an error for rectangular matrices" do
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lambda {
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Matrix[[1], [2], [3]].regular?
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}.should raise_error(Matrix::ErrDimensionMismatch)
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lambda {
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Matrix.empty(3,0).regular?
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}.should raise_error(Matrix::ErrDimensionMismatch)
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end
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end
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