Redmine 3.4.4

test/unit/issue_nested_set_concurrency_test.rb

@@ -0,0 +1,96 @@
+# Redmine - project management software
+# Copyright (C) 2006-2017  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+require File.expand_path('../../test_helper', __FILE__)
+
+class IssueNestedSetConcurrencyTest < ActiveSupport::TestCase
+  fixtures :projects, :users,
+           :trackers, :projects_trackers,
+           :enabled_modules,
+           :issue_statuses,
+           :enumerations
+
+  self.use_transactional_fixtures = false
+
+  def setup
+    skip if sqlite? || mysql?
+    CustomField.delete_all
+  end
+
+  def teardown
+    Issue.delete_all
+  end
+
+  def test_concurrency
+    # Generates an issue and destroys it in order
+    # to load all needed classes before starting threads
+    i = Issue.generate!
+    i.destroy
+
+    root = Issue.generate!
+    assert_difference 'Issue.count', 60 do
+      threaded(3) do
+        10.times do
+          i = Issue.generate! :parent_issue_id => root.id
+          c1 = Issue.generate! :parent_issue_id => i.id
+          c2 = Issue.generate! :parent_issue_id => i.id
+          c3 = Issue.generate! :parent_issue_id => i.id
+          c2.reload.destroy
+          c1.reload.destroy
+        end
+      end
+    end
+  end
+
+  def test_concurrent_subtasks_creation
+    root = Issue.generate!
+    assert_difference 'Issue.count', 30 do
+      threaded(3) do
+        10.times do
+          Issue.generate! :parent_issue_id => root.id
+        end
+      end
+    end
+    root.reload
+    assert_equal [1, 62], [root.lft, root.rgt]
+    children_bounds = root.children.sort_by(&:lft).map {|c| [c.lft, c.rgt]}.flatten
+    assert_equal (2..61).to_a, children_bounds
+  end
+
+  private
+
+  def threaded(count, &block)
+    with_settings :notified_events => [] do
+      threads = []
+      count.times do |i|
+        threads << Thread.new(i) do
+          ActiveRecord::Base.connection_pool.with_connection do
+            begin
+              yield
+            rescue Exception => e
+              Thread.current[:exception] = e.message
+            end
+          end
+        end
+      end
+      threads.each do |thread|
+        thread.join
+        assert_nil thread[:exception]
+      end
+    end
+  end
+end