require File.expand_path('../../../spec_helper', __FILE__) require 'matrix' describe "Matrix#hash" do it "returns a Fixnum" do Matrix[ [1,2] ].hash.should be_an_instance_of(Fixnum) end it "returns the same value for the same matrix" do data = [ [40,5], [2,7] ] Matrix[ *data ].hash.should == Matrix[ *data ].hash end end