Sha256: 0b4e9b4bbc4bfef63999c31abf70803de78ce580bec0c38f94cb102aa18e32ed
Contents?: true
Size: 432 Bytes
Versions: 20
Compression:
Stored size: 432 Bytes
Contents
describe Integer, "#superperfect?" do
# A019279
SUPERPERFECT = [2,4,16,64,4096,65536,262144,1073741824,
1152921504606846976]
SUPERPERFECT[0..-2].each do |n|
it "returns true for superperfect number #{n}" do
n.should be_superperfect
end
end
[1, 3, 5, 78789, 4097].each do |n|
it "returns false for non-superperfect number #{n}" do
n.should_not be_superperfect
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems