Sha256: 17882c591e3a07f15ccde2da439cf4efda40016f540bd00581df8a80a499f1c7
Contents?: true
Size: 616 Bytes
Versions: 16
Compression:
Stored size: 616 Bytes
Contents
describe Integer, "#frugal?" do
# http://www.research.att.com/~njas/sequences/A046759
FRUGAL = [125,128,243,256,343,512,625,729,1024,1029,1215,
1250,1280,1331,1369,1458,1536,1681,1701,1715,1792,
1849,1875,2048,2187,2197,2209,2401,2560,2809,3125,
3481,3584,3645,3721,4096,4374,4375,4489,4802,
4913]
it "returns true for frugal numbers" do
FRUGAL.each do |number|
number.should be_frugal
end
end
it "returns false for non-frugal numbers" do
((126..4912).to_a - FRUGAL).each do |number|
number.should_not be_frugal
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems