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21 lines
465 B
Ruby
21 lines
465 B
Ruby
require_relative '../../../spec_helper'
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ruby_version_is ""..."3.1" do
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require 'matrix'
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describe "Matrix::LUPDecomposition#p" do
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before :each do
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@a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
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@lu = Matrix::LUPDecomposition.new(@a)
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@p = @lu.p
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end
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it "returns the third element of to_a" do
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@p.should == @lu.to_a[2]
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end
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it "returns a permutation matrix" do
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@p.permutation?.should be_true
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end
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end
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end
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