14 lines
188 B
Ruby
14 lines
188 B
Ruby
require 'facets/math/factorial'
|
|
|
|
test_case Math do
|
|
|
|
class_method :factorial do
|
|
fac = 1
|
|
1.upto(100) do |i|
|
|
fac *= i
|
|
Math.factorial(i).assert == fac
|
|
end
|
|
end
|
|
|
|
end
|