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require "./lib/contracts"
require "benchmark"
require "rubygems"
require "method_profiler"
require "ruby-prof"
include Contracts
def add a, b
a + b
end
Contract Num, Num => Num
def contracts_add a, b
a + b
end
def explicit_add a, b
fail unless a.is_a?(Numeric)
fail unless b.is_a?(Numeric)
c = a + b
fail unless c.is_a?(Numeric)
c
end
def benchmark
Benchmark.bm 30 do |x|
x.report "testing add" do
1_000_000.times do |_|
add(rand(1000), rand(1000))
end
end
x.report "testing contracts add" do
1_000_000.times do |_|
contracts_add(rand(1000), rand(1000))
end
end
end
end
def profile
profilers = []
profilers << MethodProfiler.observe(Contract)
profilers << MethodProfiler.observe(Object)
profilers << MethodProfiler.observe(Contracts::MethodDecorators)
profilers << MethodProfiler.observe(Contracts::Decorator)
profilers << MethodProfiler.observe(Contracts::Support)
profilers << MethodProfiler.observe(UnboundMethod)
10_000.times do |_|
contracts_add(rand(1000), rand(1000))
end
profilers.each { |p| puts p.report }
end
def ruby_prof
RubyProf.start
100_000.times do |_|
contracts_add(rand(1000), rand(1000))
end
result = RubyProf.stop
printer = RubyProf::FlatPrinter.new(result)
printer.print(STDOUT)
end
benchmark
profile
ruby_prof if ENV["FULL_BENCH"] # takes some time
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