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- # Redmine - project management software
- # Copyright (C) 2006-2011 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 ProjectNestedSetTest < ActiveSupport::TestCase
-
- context "nested set" do
- setup do
- Project.delete_all
-
- @a = Project.create!(:name => 'Project A', :identifier => 'projecta')
- @a1 = Project.create!(:name => 'Project A1', :identifier => 'projecta1')
- @a1.set_parent!(@a)
- @a2 = Project.create!(:name => 'Project A2', :identifier => 'projecta2')
- @a2.set_parent!(@a)
-
- @b = Project.create!(:name => 'Project B', :identifier => 'projectb')
- @b1 = Project.create!(:name => 'Project B1', :identifier => 'projectb1')
- @b1.set_parent!(@b)
- @b11 = Project.create!(:name => 'Project B11', :identifier => 'projectb11')
- @b11.set_parent!(@b1)
- @b2 = Project.create!(:name => 'Project B2', :identifier => 'projectb2')
- @b2.set_parent!(@b)
-
- @c = Project.create!(:name => 'Project C', :identifier => 'projectc')
- @c1 = Project.create!(:name => 'Project C1', :identifier => 'projectc1')
- @c1.set_parent!(@c)
-
- [@a, @a1, @a2, @b, @b1, @b11, @b2, @c, @c1].each(&:reload)
- end
-
- context "#create" do
- should "build valid tree" do
- assert_nested_set_values({
- @a => [nil, 1, 6],
- @a1 => [@a.id, 2, 3],
- @a2 => [@a.id, 4, 5],
- @b => [nil, 7, 14],
- @b1 => [@b.id, 8, 11],
- @b11 => [@b1.id,9, 10],
- @b2 => [@b.id,12, 13],
- @c => [nil, 15, 18],
- @c1 => [@c.id,16, 17]
- })
- end
- end
-
- context "#set_parent!" do
- should "keep valid tree" do
- assert_no_difference 'Project.count' do
- Project.find_by_name('Project B1').set_parent!(Project.find_by_name('Project A2'))
- end
- assert_nested_set_values({
- @a => [nil, 1, 10],
- @a2 => [@a.id, 4, 9],
- @b1 => [@a2.id,5, 8],
- @b11 => [@b1.id,6, 7],
- @b => [nil, 11, 14],
- @c => [nil, 15, 18]
- })
- end
- end
-
- context "#destroy" do
- context "a root with children" do
- should "not mess up the tree" do
- assert_difference 'Project.count', -4 do
- Project.find_by_name('Project B').destroy
- end
- assert_nested_set_values({
- @a => [nil, 1, 6],
- @a1 => [@a.id, 2, 3],
- @a2 => [@a.id, 4, 5],
- @c => [nil, 7, 10],
- @c1 => [@c.id, 8, 9]
- })
- end
- end
-
- context "a child with children" do
- should "not mess up the tree" do
- assert_difference 'Project.count', -2 do
- Project.find_by_name('Project B1').destroy
- end
- assert_nested_set_values({
- @a => [nil, 1, 6],
- @b => [nil, 7, 10],
- @b2 => [@b.id, 8, 9],
- @c => [nil, 11, 14]
- })
- end
- end
- end
- end
-
- def assert_nested_set_values(h)
- assert Project.valid?
- h.each do |project, expected|
- project.reload
- assert_equal expected, [project.parent_id, project.lft, project.rgt], "Unexpected nested set values for #{project.name}"
- end
- end
- end
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