Sha256: 14c42ab2282eb119025162d04d3071c276cdae9ace0294a207a62d1c65dadf29
Contents?: true
Size: 732 Bytes
Versions: 20
Compression:
Stored size: 732 Bytes
Contents
describe Integer, "#sum_of_squares" do
SOS = [1, # [0, 0, 0, 1]
2, # [0, 0, 1, 1]
3, # [0, 1, 1, 1]
7, # [1, 1, 1, 2]
9, # Square number
11,# Prime number
58, 9634, # Special cases
123456789, # Large number
] + 1000.times.map { Random.new.rand(10..1000_000)} # Random numbers
SOS.each do |n|
squares = n.sum_of_squares
it "should return an Array of 4 Integers for #{n}" do
squares.should be_kind_of(Array)
squares.size.should == 4
squares.all?{|e| e.should be_kind_of(Integer)}
end
it "should return integers whose squares sum to give the receiver: #{n}" do
squares.map{|i| i**2}.reduce(:+).should == n
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems