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

Version Path
numb-0.186.0 spec/numb/bell_spec.rb
numb-0.185.0 spec/numb/bell_spec.rb
numb-0.184.0 spec/numb/bell_spec.rb
numb-0.181.0 spec/numb/bell_spec.rb
numb-0.170.0 spec/numb/bell_spec.rb
numb-0.152.0 spec/numb/bell_spec.rb
numb-0.138.0 spec/numb/bell_spec.rb
numb-0.125.0 spec/numb/bell_spec.rb
numb-0.114.0 spec/numb/bell_spec.rb
numb-0.111.0 spec/numb/bell_spec.rb