Fixed: deleting a project with subprojects breaks the project tree (#4701).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3354 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/project_nested_set_test.rb

@@ -0,0 +1,58 @@
+# 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.
+
+require File.dirname(__FILE__) + '/../test_helper'
+
+class ProjectNestedSetTest < ActiveSupport::TestCase
+  
+  def setup
+    Project.delete_all
+  end
+  
+  def test_destroy_root_and_chldren_should_not_mess_up_the_tree
+    a = Project.create!(:name => 'Project A', :identifier => 'projecta')
+    a1 = Project.create!(:name => 'Project A1', :identifier => 'projecta1')
+    a2 = Project.create!(:name => 'Project A2', :identifier => 'projecta2')
+    a1.set_parent!(a)
+    a2.set_parent!(a)
+    b = Project.create!(:name => 'Project B', :identifier => 'projectb')
+    b1 = Project.create!(:name => 'Project B1', :identifier => 'projectb1')
+    b1.set_parent!(b)
+    
+    a.reload
+    a1.reload
+    a2.reload
+    b.reload
+    b1.reload
+    
+    assert_equal [nil, 1, 6], [a.parent_id, a.lft, a.rgt]
+    assert_equal [a.id, 2, 3], [a1.parent_id, a1.lft, a1.rgt]
+    assert_equal [a.id, 4, 5], [a2.parent_id, a2.lft, a2.rgt]
+    assert_equal [nil, 7, 10], [b.parent_id, b.lft, b.rgt]
+    assert_equal [b.id, 8, 9], [b1.parent_id, b1.lft, b1.rgt]
+    
+    assert_difference 'Project.count', -3 do
+      a.destroy
+    end
+    
+    b.reload
+    b1.reload
+
+    assert_equal [nil, 1, 4], [b.parent_id, b.lft, b.rgt]
+    assert_equal [b.id, 2, 3], [b1.parent_id, b1.lft, b1.rgt]
+  end
+end