Sha256: 0d6d6c1b0832d4011c7caca59054787177a659d4f48954bdaa93002153493d5d
Contents?: true
Size: 917 Bytes
Versions: 36
Compression:
Stored size: 917 Bytes
Contents
describe Integer, "#smarandache-wellin?" do
# http://www.research.att.com/~njas/sequences/A019518
SMARANDACHE_WELLIN = [2,23,235,2357,235711,23571113,2357111317,
235711131719,23571113171923,2357111317192329,
235711131719232931,23571113171923293137,
2357111317192329313741,235711131719232931374143,
23571113171923293137414347]
it "returns true for Smarandache-Wellin numbers" do
SMARANDACHE_WELLIN.each do |number|
number.should be_smarandache_wellin
end
end
it "returns false for non-Smarandache-Wellin numbers" do
[3,5757490, 99].each do |number|
number.should_not be_smarandache_wellin
end
end
it "returns false for numbers which merely contain Smarandache-Wellin numbers" do
[234, 82357].each do |number|
number.should_not be_smarandache_wellin
end
end
end
Version data entries
36 entries across 36 versions & 1 rubygems