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Contents
# Copyright © 2012 The Pennsylvania State University
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require 'spec_helper'
describe Sufia::IdService do
describe "mint" do
before(:all) do
@id = Sufia::IdService.mint
end
it "should create a unique id" do
@id.should_not be_empty
end
it "should not mint the same id twice in a row" do
other_id = Sufia::IdService.mint
other_id.should_not == @id
end
it "should create many unique ids" do
a = []
threads = (1..10).map do
Thread.new do
100.times do
a << Sufia::IdService.mint
end
end
end
threads.each(&:join)
a.uniq.count.should == a.count
end
it "should create many unique ids when hit by multiple processes " do
rd, wr = IO.pipe
2.times do
pid = fork do
rd.close
threads = (1..10).map do
Thread.new do
20.times do
wr.write Sufia::IdService.mint
wr.write " "
end
end
end
threads.each(&:join)
wr.close
end
end
wr.close
2.times do
Process.wait
end
s = rd.read
rd.close
a = s.split(" ")
a.uniq.count.should == a.count
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems