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			119 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # Redmine - project management software
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| # Copyright (C) 2006-2010  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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| 
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| require File.expand_path('../../test_helper', __FILE__)
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| 
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| class ProjectNestedSetTest < ActiveSupport::TestCase
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|   
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|   context "nested set" do
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|     setup do
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|       Project.delete_all
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| 
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|       @a = Project.create!(:name => 'Project A', :identifier => 'projecta')
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|       @a1 = Project.create!(:name => 'Project A1', :identifier => 'projecta1')
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|       @a1.set_parent!(@a)
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|       @a2 = Project.create!(:name => 'Project A2', :identifier => 'projecta2')
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|       @a2.set_parent!(@a)
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|       
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|       @b = Project.create!(:name => 'Project B', :identifier => 'projectb')
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|       @b1 = Project.create!(:name => 'Project B1', :identifier => 'projectb1')
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|       @b1.set_parent!(@b)
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|       @b11 = Project.create!(:name => 'Project B11', :identifier => 'projectb11')
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|       @b11.set_parent!(@b1)
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|       @b2 = Project.create!(:name => 'Project B2', :identifier => 'projectb2')
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|       @b2.set_parent!(@b)
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|       
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|       @c = Project.create!(:name => 'Project C', :identifier => 'projectc')
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|       @c1 = Project.create!(:name => 'Project C1', :identifier => 'projectc1')
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|       @c1.set_parent!(@c)
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|       
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|       [@a, @a1, @a2, @b, @b1, @b11, @b2, @c, @c1].each(&:reload)
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|     end
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|     
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|     context "#create" do
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|       should "build valid tree" do
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|         assert_nested_set_values({
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|           @a   => [nil,   1,  6],
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|           @a1  => [@a.id, 2,  3],
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|           @a2  => [@a.id, 4,  5],
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|           @b   => [nil,   7, 14],
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|           @b1  => [@b.id, 8, 11],
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|           @b11 => [@b1.id,9, 10],
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|           @b2  => [@b.id,12, 13],
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|           @c   => [nil,  15, 18],
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|           @c1  => [@c.id,16, 17]
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|         })
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|       end
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|     end
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|     
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|     context "#set_parent!" do
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|       should "keep valid tree" do
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|         assert_no_difference 'Project.count' do
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|           Project.find_by_name('Project B1').set_parent!(Project.find_by_name('Project A2'))
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|         end
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|         assert_nested_set_values({
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|           @a   => [nil,   1, 10],
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|           @a2  => [@a.id, 4,  9],
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|           @b1  => [@a2.id,5,  8],
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|           @b11 => [@b1.id,6,  7],
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|           @b   => [nil,  11, 14],
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|           @c   => [nil,  15, 18]
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|         })
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|       end
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|     end
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|   
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|     context "#destroy" do
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|       context "a root with children" do
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|         should "not mess up the tree" do
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|           assert_difference 'Project.count', -4 do
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|             Project.find_by_name('Project B').destroy
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|           end
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|           assert_nested_set_values({
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|             @a  => [nil,   1,  6],
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|             @a1 => [@a.id, 2,  3],
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|             @a2 => [@a.id, 4,  5],
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|             @c  => [nil,   7, 10],
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|             @c1 => [@c.id, 8,  9]
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|           })
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|         end
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|       end
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|       
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|       context "a child with children" do
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|         should "not mess up the tree" do
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|           assert_difference 'Project.count', -2 do
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|             Project.find_by_name('Project B1').destroy
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|           end
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|           assert_nested_set_values({
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|             @a  => [nil,   1,  6],
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|             @b  => [nil,   7, 10],
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|             @b2 => [@b.id, 8,  9],
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|             @c  => [nil,  11, 14]
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|           })
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|         end
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|       end
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|     end
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|   end
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|   
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|   def assert_nested_set_values(h)
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|     assert Project.valid?
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|     h.each do |project, expected|
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|       project.reload
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|       assert_equal expected, [project.parent_id, project.lft, project.rgt], "Unexpected nested set values for #{project.name}"
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|     end
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|   end
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| end
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