Sha256: 55fff86f31daefac2d889542f92a4c93906269c0d3b395298e4b26dca6d319ee
Contents?: true
Size: 520 Bytes
Versions: 10
Compression:
Stored size: 520 Bytes
Contents
describe Integer, "#bell?" do
# A000110
@seq = [1,1,2,5,15,52,203,877,4140,21147,115975,678570,
4213597,27644437,190899322,1382958545,10480142147,
82864869804,682076806159,5832742205057,
51724158235372,474869816156751,4506715738447323].uniq
@seq.each do |n|
it "returns true for Bell number #{n}" do
n.should be_bell
end
end
@seq.to_seq.invert.sample(100).each do |n|
it "returns false for non-Bell number #{n}" do
n.should_not be_bell
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems