Sha256: 55804cba2629ca3a300438816f2df4f057b5d63664b73b4616c9e318059bf678
Contents?: true
Size: 668 Bytes
Versions: 36
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Stored size: 668 Bytes
Contents
describe Integer, "#undulating?" do
# http://www.research.att.com/~njas/sequences/A046075
UNDULATING = [101,121,131,141,151,161,171,181,191,202,212,232,
242,252,262,272,282,292,303,313,323,343,353,363,
373,383,393,404,414,424,434,454,464,474,484,494,
505,515,525,535,545,565,575,585,595,606,616,626,
636,646,656]
it "requires true for undulating numbers" do
UNDULATING.each do |number|
number.should be_undulating
end
end
it "requires false for non-undulating numbers" do
((1..300).to_a - UNDULATING).each do |number|
number.should_not be_undulating
end
end
end
Version data entries
36 entries across 36 versions & 1 rubygems