Sha256: 5bba7386e2930a5a7343af61249e11f1a542f793a2777fe12414c97578783d23
Contents?: true
Size: 629 Bytes
Versions: 16
Compression:
Stored size: 629 Bytes
Contents
describe Integer, "#keith?" do
# http://www.research.att.com/~njas/sequences/A007629
KEITH = [14,19,28,47,61,75,197,742,1104,1537,2208,2580,
3684,4788,7385,7647,7909,31331,34285,34348,55604,
62662,86935,93993,120284,129106,147640,156146,
174680,183186,298320,355419,694280,925993,1084051,
7913837,11436171,33445755,44121607]
it "returns true for Keith numbers" do
KEITH.each do |number|
number.should be_keith
end
end
it "returns false for non-Keith numbers" do
((1..200).to_a - KEITH).each do |number|
number.should_not be_keith
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems