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Contents
# coding: utf-8
describe Integer, "#square_free?" do
# http://www.research.att.com/~njas/sequences/A005117
SQUARE_FREE = [1,2,3,5,6,7,10,11,13,14,15,17,19,21,22,23,26,29,
30,31,33,34,35,37,38,39,41,42,43,46,47,51,53,55,
57,58,59,61,62,65,66,67,69,70,71,73,74,77,78,79,
82,83,85,86,87,89,91,93,94,95,97,101,102,103,105,
106,107,109,110,111,113]
it "returns true for square-free numbers" do
SQUARE_FREE.each do |number|
number.should be_square_free
end
end
it "returns false for non-square-free numbers" do
((1..113).to_a - SQUARE_FREE).each do |number|
number.should_not be_square_free
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems