From a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5 Mon Sep 17 00:00:00 2001 From: eregon Date: Sun, 7 May 2017 12:04:49 +0000 Subject: Add in-tree mspec and ruby/spec * 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 --- spec/rubyspec/library/matrix/regular_spec.rb | 31 ++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 spec/rubyspec/library/matrix/regular_spec.rb (limited to 'spec/rubyspec/library/matrix/regular_spec.rb') diff --git a/spec/rubyspec/library/matrix/regular_spec.rb b/spec/rubyspec/library/matrix/regular_spec.rb new file mode 100644 index 0000000000..a62a200d6d --- /dev/null +++ b/spec/rubyspec/library/matrix/regular_spec.rb @@ -0,0 +1,31 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'matrix' + +describe "Matrix#regular?" do + + it "returns false for singular matrices" do + m = Matrix[ [1,2,3], [3,4,3], [0,0,0] ] + m.regular?.should be_false + + m = Matrix[ [1,2,9], [3,4,9], [1,2,9] ] + m.regular?.should be_false + end + + it "returns true if the Matrix is regular" do + Matrix[ [0,1], [1,0] ].regular?.should be_true + end + + it "returns true for an empty 0x0 matrix" do + Matrix.empty(0,0).regular?.should be_true + end + + it "raises an error for rectangular matrices" do + lambda { + Matrix[[1], [2], [3]].regular? + }.should raise_error(Matrix::ErrDimensionMismatch) + + lambda { + Matrix.empty(3,0).regular? + }.should raise_error(Matrix::ErrDimensionMismatch) + end +end -- cgit v1.2.3