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# Redmine - project management software
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# Copyright (C) 2006-2016 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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require File.expand_path('../../test_helper', __FILE__)
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class IssueNestedSetConcurrencyTest < ActiveSupport::TestCase
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fixtures :projects, :users,
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:trackers, :projects_trackers,
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:enabled_modules,
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:issue_statuses,
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:enumerations
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self.use_transactional_fixtures = false
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def setup
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skip if sqlite?
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CustomField.delete_all
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end
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def teardown
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Issue.delete_all
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end
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def test_concurrency
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# Generates an issue and destroys it in order
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# to load all needed classes before starting threads
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i = Issue.generate!
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i.destroy
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root = Issue.generate!
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assert_difference 'Issue.count', 60 do
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threaded(3) do
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10.times do
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i = Issue.generate! :parent_issue_id => root.id
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c1 = Issue.generate! :parent_issue_id => i.id
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c2 = Issue.generate! :parent_issue_id => i.id
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c3 = Issue.generate! :parent_issue_id => i.id
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c2.reload.destroy
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c1.reload.destroy
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end
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end
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end
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end
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def test_concurrent_subtasks_creation
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root = Issue.generate!
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assert_difference 'Issue.count', 30 do
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threaded(3) do
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10.times do
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Issue.generate! :parent_issue_id => root.id
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end
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end
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end
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root.reload
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assert_equal [1, 62], [root.lft, root.rgt]
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children_bounds = root.children.sort_by(&:lft).map {|c| [c.lft, c.rgt]}.flatten
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assert_equal (2..61).to_a, children_bounds
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end
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private
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def threaded(count, &block)
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with_settings :notified_events => [] do
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threads = []
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count.times do |i|
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threads << Thread.new(i) do
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ActiveRecord::Base.connection_pool.with_connection do
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begin
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yield
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rescue Exception => e
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Thread.current[:exception] = e.message
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end
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end
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end
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end
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threads.each do |thread|
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thread.join
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assert_nil thread[:exception]
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end
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end
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end
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end
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