project_nested_set_test.rb
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r3240 | # Redmine - project management software | ||
# Copyright (C) 2006-2010 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. | ||||
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r4395 | require File.expand_path('../../test_helper', __FILE__) | ||
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r3240 | |||
class ProjectNestedSetTest < ActiveSupport::TestCase | ||||
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r4530 | 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 | ||||
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r3240 | |||
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r4530 | 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 | ||||
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r3240 | end | ||
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r4530 | 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 | ||||
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r3240 | end | ||
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r4530 | end | ||