File: column_size_spec.rb

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

describe "Matrix#column_size" do
  it "returns the number of columns" do
    Matrix[ [1,2], [3,4] ].column_size.should == 2
  end

  it "returns 0 for empty matrices" do
    Matrix[ [], [] ].column_size.should == 0
    Matrix[ ].column_size.should == 0
  end
end