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require 'rubygems'
require 'benchmark'
require 'net/http'
def http_request
res = Net::HTTP.get_response(URI.parse('http://example.com'))
raise "Body should be 'Hello'" unless res.body == 'Hello'
end
def fakeweb
FakeWeb.register_uri(:get, 'http://example.com', :body => 'Hello')
yield
ensure
FakeWeb.clean_registry
end
def webmock
WebMock.stub_request(:get, 'http://example.com').to_return(:body => 'Hello')
yield
ensure
WebMock.reset!
end
def perform_benchmark(name)
puts "\n\nBenchmarking #{name}:"
Benchmark.benchmark do |b|
%w(webmock fakeweb).each do |type|
b.report(type) do
# this is a bit convoluted, but we want to ensure that each benchmark runs without the other library loaded,
# so we fork off a sub-process before requiring the libraries.
Process.fork do
require type
yield type
end
Process.wait
end
end
end
end
n = 5000
perform_benchmark("Single setup/teardown") do |type|
send(type) { n.times { http_request } }
end
perform_benchmark("Setup/teardown for each http request") do |type|
n.times { send(type) { http_request } }
end
# Output on my machine:
#
# Benchmarking Single setup/teardown:
# webmock 0.000000 0.000000 5.870000 ( 6.211840)
# fakeweb 0.000000 0.000000 1.840000 ( 1.940935)
#
#
# Benchmarking Setup/teardown for each http request:
# webmock 0.000000 0.000000 7.710000 ( 7.776178)
# fakeweb 0.000000 0.000000 2.410000 ( 2.420550)
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