File: square_spec.rb

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require File.expand_path('../../../spec_helper', __FILE__)
require 'matrix'

describe "Matrix#square?" do

  it "returns true when the Matrix is square" do
    Matrix[ [1,2], [2,4] ].square?.should be_true
    Matrix[ [100,3,5], [9.5, 4.9, 8], [2,0,77] ].square?.should be_true
  end

  it "returns true when the Matrix has only one element" do
    Matrix[ [9] ].square?.should be_true
  end

  it "returns false when the Matrix is rectangular" do
    Matrix[ [1, 2] ].square?.should be_false
  end

  it "returns false when the Matrix is rectangular" do
    Matrix[ [1], [2] ].square?.should be_false
  end

  ruby_bug "redmine:1532", "1.8.7" do
    it "returns handles empty matrices" do
      Matrix[].square?.should be_true
      Matrix[[]].square?.should be_false
      Matrix.columns([[]]).square?.should be_false
    end
  end
end