Sha256: f2f0976281496a7cc31e39a55d1af52a07826bca81d6c0a8b9cdbf846ff10087
Contents?: true
Size: 619 Bytes
Versions: 7
Compression:
Stored size: 619 Bytes
Contents
describe Integer, "#centered_square?" do
# A001844
@seq = [1,5,13,25,41,61,85,113,145,181,221,265,313,365,
421,481,545,613,685,761,841,925,1013,1105,1201,
1301,1405,1513,1625,1741,1861,1985,2113,2245,2381,
2521,2665,2813,2965,3121,3281,3445,3613,3785,3961,
4141,4325]
@seq.each do |n|
it "should return true for centered-square number #{n}" do
n.should be_centered_square
end
end
@seq.to_seq.invert.sample(100).each do |n|
it "should return false for non-centered-square number #{n}" do
n.should_not be_centered_square
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems