Sha256: f4f4e35d23554a1d94de90dbfce563cae364c263fc9f0f4f44b86a73637cd3a6

Contents?: true

Size: 593 Bytes

Versions: 13

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Stored size: 593 Bytes

Contents

describe Integer, "#square_triangular?" do
  # A001110
  @seq = [0,1,36,1225,41616,1413721,48024900,1631432881,
          55420693056,1882672131025,63955431761796,
          2172602007770041,73804512832419600,
          2507180834294496361,85170343853180456676,
          2893284510173841030625]

  @seq.each do |n|
    it "returns true for square triangular number #{n}" do
      n.should be_square_triangular
    end
  end

  @seq.to_seq.invert.sample(100).each do |n|
    it "returns false for non-square-triangular number #{n}" do
      n.should_not be_square_triangular
    end
  end
end

Version data entries

13 entries across 13 versions & 1 rubygems

Version Path
numb-0.186.0 spec/numb/square_triangular_spec.rb
numb-0.185.0 spec/numb/square_triangular_spec.rb
numb-0.184.0 spec/numb/square_triangular_spec.rb
numb-0.181.0 spec/numb/square_triangular_spec.rb
numb-0.170.0 spec/numb/square_triangular_spec.rb
numb-0.152.0 spec/numb/square_triangular_spec.rb
numb-0.138.0 spec/numb/square_triangular_spec.rb
numb-0.125.0 spec/numb/square_triangular_spec.rb
numb-0.114.0 spec/numb/square_triangular_spec.rb
numb-0.111.0 spec/numb/square_triangular_spec.rb
numb-0.109.0 spec/numb/square_triangular_spec.rb
numb-0.99.0 spec/numb/square_triangular_spec.rb
numb-0.96.0 spec/numb/square_triangular_spec.rb