Sha256: 77feb22d518a017073e93f2e714c27703f494f2d73f1c917ce43019042b1bdd1
Contents?: true
Size: 714 Bytes
Versions: 6
Compression:
Stored size: 714 Bytes
Contents
# coding: utf-8
# A002315
NSW = [1,7,41,239,1393,8119,47321,275807,1607521,
9369319,54608393,318281039,1855077841,10812186007,
63018038201,367296043199,2140758220993,
12477253282759,72722761475561,423859315570607,
2470433131948081]
describe Integer, "#nsw" do
NSW.each_with_index do |nsw, n|
it "returns #{nsw} as the #{n}#{n.ordinal} NSW number" do
n.nsw.should == nsw
end
end
end
describe Integer, "#nsw?" do
@seq = NSW
@seq.each do |n|
it "returns true for NSW number #{n}" do
n.should be_nsw
end
end
@seq.to_seq.invert.sample(100).each do |n|
it "returns false for non-NSW number #{n}" do
n.should_not be_nsw
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems