Sha256: 90fc0aaceb7d729005c5f1f3ee6fcddcfa522ee0af657cf582e97785adf11699
Contents?: true
Size: 570 Bytes
Versions: 16
Compression:
Stored size: 570 Bytes
Contents
describe Integer, "#woodall?" do
# A003261
@seq = [1,7,23,63,159,383,895,2047,4607,10239,22527,
49151,106495,229375,491519,1048575,2228223,
4718591,9961471,20971519,44040191,92274687,
192937983,402653183,838860799,1744830463,
3623878655,7516192767].to_seq
@seq.sample(5).each do |n|
it "should return true for Woodall number #{n}" do
n.should be_woodall
end
end
@seq.invert.sample(5).each do |n|
it "should return false for non-Woodall number #{n}" do
n.should_not be_woodall
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems