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require File.expand_path('../../../../spec_helper', __FILE__)
require 'prime'
describe "Integer.from_prime_division" do
it "returns the product of the given factorization" do
Integer.from_prime_division([[2,3], [3,3], [5,3], [7,3], [11,3], [13,3], [17,3]]).
should == 2**3 * 3**3 * 5**3 * 7**3 * 11**3 * 13**3 * 17**3
end
it "returns 1 for an empty factorization" do
Integer.from_prime_division([]).should == 1
end
end
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