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Move spec/rubyspec to spec/ruby for consistency

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* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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eregon 2017-09-20 20:18:52 +00:00
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spec/ruby/library/matrix/lower_triangular_spec.rb Normal file
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require File.expand_path('../../../spec_helper', __FILE__)
require 'matrix'
describe "Matrix.lower_triangular?" do
it "returns true for a square lower triangular Matrix" do
Matrix[[1, 0, 0], [1, 2, 0], [1, 2, 3]].lower_triangular?.should be_true
Matrix.diagonal([1, 2, 3]).lower_triangular?.should be_true
Matrix[[1, 0], [1, 2], [1, 2], [1, 2]].lower_triangular?.should be_true
Matrix[[1, 0, 0, 0], [1, 2, 0, 0]].lower_triangular?.should be_true
end
it "returns true for an empty Matrix" do
Matrix.empty(3, 0).lower_triangular?.should be_true
Matrix.empty(0, 3).lower_triangular?.should be_true
Matrix.empty(0, 0).lower_triangular?.should be_true
end
it "returns false for a non lower triangular square Matrix" do
Matrix[[0, 1], [0, 0]].lower_triangular?.should be_false
Matrix[[1, 2, 3], [1, 2, 3], [1, 2, 3]].lower_triangular?.should be_false
Matrix[[0, 1], [0, 0], [0, 0], [0, 0]].lower_triangular?.should be_false
Matrix[[0, 0, 0, 1], [0, 0, 0, 0]].lower_triangular?.should be_false
end
end