Moved Rails plugins required by the core to lib/plugins.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9533 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/plugins/awesome_nested_set/test/awesome_nested_set/helper_test.rb

@@ -0,0 +1,41 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+module CollectiveIdea
+  module Acts #:nodoc:
+    module NestedSet #:nodoc:
+      class AwesomeNestedSetTest < Test::Unit::TestCase
+        include Helper
+        fixtures :categories
+        
+        def test_nested_set_options
+          expected = [
+            [" Top Level", 1],
+            ["- Child 1", 2],
+            ['- Child 2', 3],
+            ['-- Child 2.1', 4],
+            ['- Child 3', 5],
+            [" Top Level 2", 6]
+          ]
+          actual = nested_set_options(Category) do |c|
+            "#{'-' * c.level} #{c.name}"
+          end
+          assert_equal expected, actual
+        end
+        
+        def test_nested_set_options_with_mover
+          expected = [
+            [" Top Level", 1],
+            ["- Child 1", 2],
+            ['- Child 3', 5],
+            [" Top Level 2", 6]
+          ]
+          actual = nested_set_options(Category, categories(:child_2)) do |c|
+            "#{'-' * c.level} #{c.name}"
+          end
+          assert_equal expected, actual
+        end
+        
+      end
+    end
+  end
+end

lib/plugins/awesome_nested_set/test/awesome_nested_set_test.rb

@@ -0,0 +1,603 @@
+require File.dirname(__FILE__) + '/test_helper'
+
+class Note < ActiveRecord::Base
+  acts_as_nested_set :scope => [:notable_id, :notable_type]
+end
+
+class AwesomeNestedSetTest < Test::Unit::TestCase
+
+  class Default < ActiveRecord::Base
+    acts_as_nested_set
+    set_table_name 'categories'
+  end
+  class Scoped < ActiveRecord::Base
+    acts_as_nested_set :scope => :organization
+    set_table_name 'categories'
+  end
+
+  def test_left_column_default
+    assert_equal 'lft', Default.acts_as_nested_set_options[:left_column]
+  end
+
+  def test_right_column_default
+    assert_equal 'rgt', Default.acts_as_nested_set_options[:right_column]
+  end
+
+  def test_parent_column_default
+    assert_equal 'parent_id', Default.acts_as_nested_set_options[:parent_column]
+  end
+
+  def test_scope_default
+    assert_nil Default.acts_as_nested_set_options[:scope]
+  end
+  
+  def test_left_column_name
+    assert_equal 'lft', Default.left_column_name
+    assert_equal 'lft', Default.new.left_column_name
+  end
+
+  def test_right_column_name
+    assert_equal 'rgt', Default.right_column_name
+    assert_equal 'rgt', Default.new.right_column_name
+  end
+
+  def test_parent_column_name
+    assert_equal 'parent_id', Default.parent_column_name
+    assert_equal 'parent_id', Default.new.parent_column_name
+  end
+  
+  def test_quoted_left_column_name
+    quoted = Default.connection.quote_column_name('lft')
+    assert_equal quoted, Default.quoted_left_column_name
+    assert_equal quoted, Default.new.quoted_left_column_name
+  end
+
+  def test_quoted_right_column_name
+    quoted = Default.connection.quote_column_name('rgt')
+    assert_equal quoted, Default.quoted_right_column_name
+    assert_equal quoted, Default.new.quoted_right_column_name
+  end
+
+  def test_left_column_protected_from_assignment
+    assert_raises(ActiveRecord::ActiveRecordError) { Category.new.lft = 1 }
+  end
+  
+  def test_right_column_protected_from_assignment
+    assert_raises(ActiveRecord::ActiveRecordError) { Category.new.rgt = 1 }
+  end
+  
+  def test_parent_column_protected_from_assignment
+    assert_raises(ActiveRecord::ActiveRecordError) { Category.new.parent_id = 1 }
+  end
+  
+  def test_colums_protected_on_initialize
+    c = Category.new(:lft => 1, :rgt => 2, :parent_id => 3)
+    assert_nil c.lft
+    assert_nil c.rgt
+    assert_nil c.parent_id
+  end
+  
+  def test_scoped_appends_id
+    assert_equal :organization_id, Scoped.acts_as_nested_set_options[:scope]
+  end
+  
+  def test_roots_class_method
+    assert_equal Category.find_all_by_parent_id(nil), Category.roots
+  end
+    
+  def test_root_class_method
+    assert_equal categories(:top_level), Category.root
+  end
+  
+  def test_root
+    assert_equal categories(:top_level), categories(:child_3).root
+  end
+  
+  def test_root?
+    assert categories(:top_level).root?
+    assert categories(:top_level_2).root?
+  end
+  
+  def test_leaves_class_method
+    assert_equal Category.find(:all, :conditions => "#{Category.right_column_name} - #{Category.left_column_name} = 1"), Category.leaves
+    assert_equal Category.leaves.count, 4
+    assert (Category.leaves.include? categories(:child_1))
+    assert (Category.leaves.include? categories(:child_2_1))
+    assert (Category.leaves.include? categories(:child_3))
+    assert (Category.leaves.include? categories(:top_level_2))
+  end
+  
+  def test_leaf
+    assert categories(:child_1).leaf?
+    assert categories(:child_2_1).leaf?
+    assert categories(:child_3).leaf?
+    assert categories(:top_level_2).leaf?
+    
+    assert !categories(:top_level).leaf?
+    assert !categories(:child_2).leaf?
+  end
+    
+  def test_parent
+    assert_equal categories(:child_2), categories(:child_2_1).parent
+  end
+  
+  def test_self_and_ancestors
+    child = categories(:child_2_1)
+    self_and_ancestors = [categories(:top_level), categories(:child_2), child]
+    assert_equal self_and_ancestors, child.self_and_ancestors
+  end
+
+  def test_ancestors
+    child = categories(:child_2_1)
+    ancestors = [categories(:top_level), categories(:child_2)]
+    assert_equal ancestors, child.ancestors
+  end
+  
+  def test_self_and_siblings
+    child = categories(:child_2)
+    self_and_siblings = [categories(:child_1), child, categories(:child_3)]
+    assert_equal self_and_siblings, child.self_and_siblings
+    assert_nothing_raised do
+      tops = [categories(:top_level), categories(:top_level_2)]
+      assert_equal tops, categories(:top_level).self_and_siblings
+    end
+  end
+
+  def test_siblings
+    child = categories(:child_2)
+    siblings = [categories(:child_1), categories(:child_3)]
+    assert_equal siblings, child.siblings
+  end
+  
+  def test_leaves
+    leaves = [categories(:child_1), categories(:child_2_1), categories(:child_3), categories(:top_level_2)]
+    assert categories(:top_level).leaves, leaves
+  end
+  
+  def test_level
+    assert_equal 0, categories(:top_level).level
+    assert_equal 1, categories(:child_1).level
+    assert_equal 2, categories(:child_2_1).level
+  end
+  
+  def test_has_children?
+    assert categories(:child_2_1).children.empty?
+    assert !categories(:child_2).children.empty?
+    assert !categories(:top_level).children.empty?
+  end
+  
+  def test_self_and_descendents
+    parent = categories(:top_level)
+    self_and_descendants = [parent, categories(:child_1), categories(:child_2),
+      categories(:child_2_1), categories(:child_3)]
+    assert_equal self_and_descendants, parent.self_and_descendants
+    assert_equal self_and_descendants, parent.self_and_descendants.count
+  end
+  
+  def test_descendents
+    lawyers = Category.create!(:name => "lawyers")
+    us = Category.create!(:name => "United States")
+    us.move_to_child_of(lawyers)
+    patent = Category.create!(:name => "Patent Law")
+    patent.move_to_child_of(us)
+    lawyers.reload
+
+    assert_equal 1, lawyers.children.size
+    assert_equal 1, us.children.size
+    assert_equal 2, lawyers.descendants.size
+  end
+  
+  def test_self_and_descendents
+    parent = categories(:top_level)
+    descendants = [categories(:child_1), categories(:child_2),
+      categories(:child_2_1), categories(:child_3)]
+    assert_equal descendants, parent.descendants
+  end
+  
+  def test_children
+    category = categories(:top_level)
+    category.children.each {|c| assert_equal category.id, c.parent_id }
+  end
+  
+  def test_is_or_is_ancestor_of?
+    assert categories(:top_level).is_or_is_ancestor_of?(categories(:child_1))
+    assert categories(:top_level).is_or_is_ancestor_of?(categories(:child_2_1))
+    assert categories(:child_2).is_or_is_ancestor_of?(categories(:child_2_1))
+    assert !categories(:child_2_1).is_or_is_ancestor_of?(categories(:child_2))
+    assert !categories(:child_1).is_or_is_ancestor_of?(categories(:child_2))
+    assert categories(:child_1).is_or_is_ancestor_of?(categories(:child_1))
+  end
+  
+  def test_is_ancestor_of?
+    assert categories(:top_level).is_ancestor_of?(categories(:child_1))
+    assert categories(:top_level).is_ancestor_of?(categories(:child_2_1))
+    assert categories(:child_2).is_ancestor_of?(categories(:child_2_1))
+    assert !categories(:child_2_1).is_ancestor_of?(categories(:child_2))
+    assert !categories(:child_1).is_ancestor_of?(categories(:child_2))
+    assert !categories(:child_1).is_ancestor_of?(categories(:child_1))
+  end
+
+  def test_is_or_is_ancestor_of_with_scope
+    root = Scoped.root
+    child = root.children.first
+    assert root.is_or_is_ancestor_of?(child)
+    child.update_attribute :organization_id, 'different'
+    assert !root.is_or_is_ancestor_of?(child)
+  end
+
+  def test_is_or_is_descendant_of?
+    assert categories(:child_1).is_or_is_descendant_of?(categories(:top_level))
+    assert categories(:child_2_1).is_or_is_descendant_of?(categories(:top_level))
+    assert categories(:child_2_1).is_or_is_descendant_of?(categories(:child_2))
+    assert !categories(:child_2).is_or_is_descendant_of?(categories(:child_2_1))
+    assert !categories(:child_2).is_or_is_descendant_of?(categories(:child_1))
+    assert categories(:child_1).is_or_is_descendant_of?(categories(:child_1))
+  end
+  
+  def test_is_descendant_of?
+    assert categories(:child_1).is_descendant_of?(categories(:top_level))
+    assert categories(:child_2_1).is_descendant_of?(categories(:top_level))
+    assert categories(:child_2_1).is_descendant_of?(categories(:child_2))
+    assert !categories(:child_2).is_descendant_of?(categories(:child_2_1))
+    assert !categories(:child_2).is_descendant_of?(categories(:child_1))
+    assert !categories(:child_1).is_descendant_of?(categories(:child_1))
+  end
+  
+  def test_is_or_is_descendant_of_with_scope
+    root = Scoped.root
+    child = root.children.first
+    assert child.is_or_is_descendant_of?(root)
+    child.update_attribute :organization_id, 'different'
+    assert !child.is_or_is_descendant_of?(root)
+  end
+  
+  def test_same_scope?
+    root = Scoped.root
+    child = root.children.first
+    assert child.same_scope?(root)
+    child.update_attribute :organization_id, 'different'
+    assert !child.same_scope?(root)
+  end
+  
+  def test_left_sibling
+    assert_equal categories(:child_1), categories(:child_2).left_sibling
+    assert_equal categories(:child_2), categories(:child_3).left_sibling
+  end
+
+  def test_left_sibling_of_root
+    assert_nil categories(:top_level).left_sibling
+  end
+
+  def test_left_sibling_without_siblings
+    assert_nil categories(:child_2_1).left_sibling
+  end
+
+  def test_left_sibling_of_leftmost_node
+    assert_nil categories(:child_1).left_sibling
+  end
+
+  def test_right_sibling
+    assert_equal categories(:child_3), categories(:child_2).right_sibling
+    assert_equal categories(:child_2), categories(:child_1).right_sibling
+  end
+
+  def test_right_sibling_of_root
+    assert_equal categories(:top_level_2), categories(:top_level).right_sibling
+    assert_nil categories(:top_level_2).right_sibling
+  end
+
+  def test_right_sibling_without_siblings
+    assert_nil categories(:child_2_1).right_sibling
+  end
+
+  def test_right_sibling_of_rightmost_node
+    assert_nil categories(:child_3).right_sibling
+  end
+  
+  def test_move_left
+    categories(:child_2).move_left
+    assert_nil categories(:child_2).left_sibling
+    assert_equal categories(:child_1), categories(:child_2).right_sibling
+    assert Category.valid?
+  end
+
+  def test_move_right
+    categories(:child_2).move_right
+    assert_nil categories(:child_2).right_sibling
+    assert_equal categories(:child_3), categories(:child_2).left_sibling
+    assert Category.valid?
+  end
+
+  def test_move_to_left_of
+    categories(:child_3).move_to_left_of(categories(:child_1))
+    assert_nil categories(:child_3).left_sibling
+    assert_equal categories(:child_1), categories(:child_3).right_sibling
+    assert Category.valid?
+  end
+
+  def test_move_to_right_of
+    categories(:child_1).move_to_right_of(categories(:child_3))
+    assert_nil categories(:child_1).right_sibling
+    assert_equal categories(:child_3), categories(:child_1).left_sibling
+    assert Category.valid?
+  end
+  
+  def test_move_to_root
+    categories(:child_2).move_to_root
+    assert_nil categories(:child_2).parent
+    assert_equal 0, categories(:child_2).level
+    assert_equal 1, categories(:child_2_1).level
+    assert_equal 1, categories(:child_2).left
+    assert_equal 4, categories(:child_2).right
+    assert Category.valid?
+  end
+
+  def test_move_to_child_of
+    categories(:child_1).move_to_child_of(categories(:child_3))
+    assert_equal categories(:child_3).id, categories(:child_1).parent_id
+    assert Category.valid?
+  end
+  
+  def test_move_to_child_of_appends_to_end
+    child = Category.create! :name => 'New Child'
+    child.move_to_child_of categories(:top_level)
+    assert_equal child, categories(:top_level).children.last
+  end
+  
+  def test_subtree_move_to_child_of
+    assert_equal 4, categories(:child_2).left
+    assert_equal 7, categories(:child_2).right
+    
+    assert_equal 2, categories(:child_1).left
+    assert_equal 3, categories(:child_1).right
+    
+    categories(:child_2).move_to_child_of(categories(:child_1))
+    assert Category.valid?
+    assert_equal categories(:child_1).id, categories(:child_2).parent_id
+    
+    assert_equal 3, categories(:child_2).left
+    assert_equal 6, categories(:child_2).right
+    assert_equal 2, categories(:child_1).left
+    assert_equal 7, categories(:child_1).right    
+  end
+  
+  def test_slightly_difficult_move_to_child_of
+    assert_equal 11, categories(:top_level_2).left
+    assert_equal 12, categories(:top_level_2).right
+    
+    # create a new top-level node and move single-node top-level tree inside it.
+    new_top = Category.create(:name => 'New Top')
+    assert_equal 13, new_top.left
+    assert_equal 14, new_top.right
+    
+    categories(:top_level_2).move_to_child_of(new_top)
+    
+    assert Category.valid?
+    assert_equal new_top.id, categories(:top_level_2).parent_id
+    
+    assert_equal 12, categories(:top_level_2).left
+    assert_equal 13, categories(:top_level_2).right
+    assert_equal 11, new_top.left
+    assert_equal 14, new_top.right    
+  end
+  
+  def test_difficult_move_to_child_of
+    assert_equal 1, categories(:top_level).left
+    assert_equal 10, categories(:top_level).right
+    assert_equal 5, categories(:child_2_1).left
+    assert_equal 6, categories(:child_2_1).right
+    
+    # create a new top-level node and move an entire top-level tree inside it.
+    new_top = Category.create(:name => 'New Top')
+    categories(:top_level).move_to_child_of(new_top)
+    categories(:child_2_1).reload
+    assert Category.valid?  
+    assert_equal new_top.id, categories(:top_level).parent_id
+    
+    assert_equal 4, categories(:top_level).left
+    assert_equal 13, categories(:top_level).right
+    assert_equal 8, categories(:child_2_1).left
+    assert_equal 9, categories(:child_2_1).right    
+  end
+
+  #rebuild swaps the position of the 2 children when added using move_to_child twice onto same parent
+  def test_move_to_child_more_than_once_per_parent_rebuild
+    root1 = Category.create(:name => 'Root1')
+    root2 = Category.create(:name => 'Root2')
+    root3 = Category.create(:name => 'Root3')
+    
+    root2.move_to_child_of root1
+    root3.move_to_child_of root1
+      
+    output = Category.roots.last.to_text
+    Category.update_all('lft = null, rgt = null')
+    Category.rebuild!
+    
+    assert_equal Category.roots.last.to_text, output
+  end
+  
+  # doing move_to_child twice onto same parent from the furthest right first
+  def test_move_to_child_more_than_once_per_parent_outside_in
+    node1 = Category.create(:name => 'Node-1')
+    node2 = Category.create(:name => 'Node-2')
+    node3 = Category.create(:name => 'Node-3')
+    
+    node2.move_to_child_of node1
+    node3.move_to_child_of node1
+      
+    output = Category.roots.last.to_text
+    Category.update_all('lft = null, rgt = null')
+    Category.rebuild!
+    
+    assert_equal Category.roots.last.to_text, output
+  end
+
+
+  def test_valid_with_null_lefts
+    assert Category.valid?
+    Category.update_all('lft = null')
+    assert !Category.valid?
+  end
+
+  def test_valid_with_null_rights
+    assert Category.valid?
+    Category.update_all('rgt = null')
+    assert !Category.valid?
+  end
+  
+  def test_valid_with_missing_intermediate_node
+    # Even though child_2_1 will still exist, it is a sign of a sloppy delete, not an invalid tree.
+    assert Category.valid?
+    Category.delete(categories(:child_2).id)
+    assert Category.valid?
+  end
+  
+  def test_valid_with_overlapping_and_rights
+    assert Category.valid?
+    categories(:top_level_2)['lft'] = 0
+    categories(:top_level_2).save
+    assert !Category.valid?
+  end
+  
+  def test_rebuild
+    assert Category.valid?
+    before_text = Category.root.to_text
+    Category.update_all('lft = null, rgt = null')
+    Category.rebuild!
+    assert Category.valid?
+    assert_equal before_text, Category.root.to_text
+  end
+  
+  def test_move_possible_for_sibling
+    assert categories(:child_2).move_possible?(categories(:child_1))
+  end
+  
+  def test_move_not_possible_to_self
+    assert !categories(:top_level).move_possible?(categories(:top_level))
+  end
+  
+  def test_move_not_possible_to_parent
+    categories(:top_level).descendants.each do |descendant|
+      assert !categories(:top_level).move_possible?(descendant)
+      assert descendant.move_possible?(categories(:top_level))
+    end
+  end
+  
+  def test_is_or_is_ancestor_of?
+    [:child_1, :child_2, :child_2_1, :child_3].each do |c|
+      assert categories(:top_level).is_or_is_ancestor_of?(categories(c))
+    end
+    assert !categories(:top_level).is_or_is_ancestor_of?(categories(:top_level_2))
+  end
+  
+  def test_left_and_rights_valid_with_blank_left
+    assert Category.left_and_rights_valid?
+    categories(:child_2)[:lft] = nil
+    categories(:child_2).save(false)
+    assert !Category.left_and_rights_valid?
+  end
+
+  def test_left_and_rights_valid_with_blank_right
+    assert Category.left_and_rights_valid?
+    categories(:child_2)[:rgt] = nil
+    categories(:child_2).save(false)
+    assert !Category.left_and_rights_valid?
+  end
+
+  def test_left_and_rights_valid_with_equal
+    assert Category.left_and_rights_valid?
+    categories(:top_level_2)[:lft] = categories(:top_level_2)[:rgt]
+    categories(:top_level_2).save(false)
+    assert !Category.left_and_rights_valid?
+  end
+
+  def test_left_and_rights_valid_with_left_equal_to_parent
+    assert Category.left_and_rights_valid?
+    categories(:child_2)[:lft] = categories(:top_level)[:lft]
+    categories(:child_2).save(false)
+    assert !Category.left_and_rights_valid?
+  end
+
+  def test_left_and_rights_valid_with_right_equal_to_parent
+    assert Category.left_and_rights_valid?
+    categories(:child_2)[:rgt] = categories(:top_level)[:rgt]
+    categories(:child_2).save(false)
+    assert !Category.left_and_rights_valid?
+  end
+  
+  def test_moving_dirty_objects_doesnt_invalidate_tree
+    r1 = Category.create
+    r2 = Category.create
+    r3 = Category.create
+    r4 = Category.create
+    nodes = [r1, r2, r3, r4]
+    
+    r2.move_to_child_of(r1)
+    assert Category.valid?
+    
+    r3.move_to_child_of(r1)
+    assert Category.valid?
+    
+    r4.move_to_child_of(r2)
+    assert Category.valid?
+  end
+  
+  def test_multi_scoped_no_duplicates_for_columns?
+    assert_nothing_raised do
+      Note.no_duplicates_for_columns?
+    end
+  end
+
+  def test_multi_scoped_all_roots_valid?
+    assert_nothing_raised do
+      Note.all_roots_valid?
+    end
+  end
+
+  def test_multi_scoped
+    note1 = Note.create!(:body => "A", :notable_id => 2, :notable_type => 'Category')
+    note2 = Note.create!(:body => "B", :notable_id => 2, :notable_type => 'Category')
+    note3 = Note.create!(:body => "C", :notable_id => 2, :notable_type => 'Default')
+    
+    assert_equal [note1, note2], note1.self_and_siblings
+    assert_equal [note3], note3.self_and_siblings
+  end
+  
+  def test_multi_scoped_rebuild
+    root = Note.create!(:body => "A", :notable_id => 3, :notable_type => 'Category')
+    child1 = Note.create!(:body => "B", :notable_id => 3, :notable_type => 'Category')
+    child2 = Note.create!(:body => "C", :notable_id => 3, :notable_type => 'Category')
+    
+    child1.move_to_child_of root
+    child2.move_to_child_of root
+          
+    Note.update_all('lft = null, rgt = null')
+    Note.rebuild!
+    
+    assert_equal Note.roots.find_by_body('A'), root
+    assert_equal [child1, child2], Note.roots.find_by_body('A').children
+  end
+  
+  def test_same_scope_with_multi_scopes
+    assert_nothing_raised do
+      notes(:scope1).same_scope?(notes(:child_1))
+    end
+    assert notes(:scope1).same_scope?(notes(:child_1))
+    assert notes(:child_1).same_scope?(notes(:scope1))
+    assert !notes(:scope1).same_scope?(notes(:scope2))
+  end
+  
+  def test_quoting_of_multi_scope_column_names
+    assert_equal ["\"notable_id\"", "\"notable_type\""], Note.quoted_scope_column_names
+  end
+  
+  def test_equal_in_same_scope
+    assert_equal notes(:scope1), notes(:scope1)
+    assert_not_equal notes(:scope1), notes(:child_1)
+  end
+  
+  def test_equal_in_different_scopes
+    assert_not_equal notes(:scope1), notes(:scope2)
+  end
+  
+end

lib/plugins/awesome_nested_set/test/db/database.yml

@@ -0,0 +1,18 @@
+sqlite3:
+  adapter: sqlite3
+  dbfile: awesome_nested_set.sqlite3.db
+sqlite3mem:
+  :adapter: sqlite3
+  :dbfile: ":memory:"
+postgresql:
+  :adapter: postgresql
+  :username: postgres
+  :password: postgres
+  :database: awesome_nested_set_plugin_test
+  :min_messages: ERROR
+mysql:
+  :adapter: mysql
+  :host: localhost
+  :username: root
+  :password:
+  :database: awesome_nested_set_plugin_test

lib/plugins/awesome_nested_set/test/db/schema.rb

@@ -0,0 +1,23 @@
+ActiveRecord::Schema.define(:version => 0) do
+
+  create_table :categories, :force => true do |t|
+    t.column :name, :string
+    t.column :parent_id, :integer
+    t.column :lft, :integer
+    t.column :rgt, :integer
+    t.column :organization_id, :integer
+  end
+
+  create_table :departments, :force => true do |t|
+    t.column :name, :string
+  end
+  
+  create_table :notes, :force => true do |t|
+    t.column :body, :text
+    t.column :parent_id, :integer
+    t.column :lft, :integer
+    t.column :rgt, :integer
+    t.column :notable_id, :integer
+    t.column :notable_type, :string
+  end
+end

lib/plugins/awesome_nested_set/test/fixtures/categories.yml

@@ -0,0 +1,34 @@
+top_level:
+  id: 1
+  name: Top Level
+  lft: 1
+  rgt: 10
+child_1:
+  id: 2
+  name: Child 1
+  parent_id: 1
+  lft: 2
+  rgt: 3
+child_2:
+  id: 3
+  name: Child 2
+  parent_id: 1
+  lft: 4
+  rgt: 7
+child_2_1:
+  id: 4
+  name: Child 2.1
+  parent_id: 3
+  lft: 5
+  rgt: 6
+child_3:
+  id: 5
+  name: Child 3
+  parent_id: 1
+  lft: 8
+  rgt: 9
+top_level_2:
+  id: 6
+  name: Top Level 2
+  lft: 11
+  rgt: 12

lib/plugins/awesome_nested_set/test/fixtures/category.rb

@@ -0,0 +1,15 @@
+class Category < ActiveRecord::Base
+  acts_as_nested_set
+  
+  def to_s
+    name
+  end
+  
+  def recurse &block
+    block.call self, lambda{
+      self.children.each do |child|
+        child.recurse &block
+      end
+    }
+  end
+end

lib/plugins/awesome_nested_set/test/fixtures/departments.yml

@@ -0,0 +1,3 @@
+top:
+  id: 1
+  name: Top

lib/plugins/awesome_nested_set/test/fixtures/notes.yml

@@ -0,0 +1,38 @@
+scope1:
+  id: 1
+  body: Top Level
+  lft: 1
+  rgt: 10
+  notable_id: 1
+  notable_type: Category
+child_1:
+  id: 2
+  body: Child 1
+  parent_id: 1
+  lft: 2
+  rgt: 3
+  notable_id: 1
+  notable_type: Category
+child_2:
+  id: 3
+  body: Child 2
+  parent_id: 1
+  lft: 4
+  rgt: 7
+  notable_id: 1
+  notable_type: Category
+child_3:
+  id: 4
+  body: Child 3
+  parent_id: 1
+  lft: 8
+  rgt: 9
+  notable_id: 1
+  notable_type: Category
+scope2:
+  id: 5
+  body: Top Level 2
+  lft: 1
+  rgt: 2
+  notable_id: 1
+  notable_type: Departments

lib/plugins/awesome_nested_set/test/test_helper.rb

@@ -0,0 +1,31 @@
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+plugin_test_dir = File.dirname(__FILE__)
+
+require 'rubygems'
+require 'test/unit'
+require 'multi_rails_init'
+# gem 'activerecord', '>= 2.0'
+require 'active_record' 
+require 'action_controller'
+require 'action_view'
+require 'active_record/fixtures'
+
+require plugin_test_dir + '/../init.rb'
+
+ActiveRecord::Base.logger = Logger.new(plugin_test_dir + "/debug.log")
+
+ActiveRecord::Base.configurations = YAML::load(IO.read(plugin_test_dir + "/db/database.yml"))
+ActiveRecord::Base.establish_connection(ENV["DB"] || "sqlite3mem")
+ActiveRecord::Migration.verbose = false
+load(File.join(plugin_test_dir, "db", "schema.rb"))
+
+Dir["#{plugin_test_dir}/fixtures/*.rb"].each {|file| require file }
+
+
+class Test::Unit::TestCase #:nodoc:
+  self.fixture_path = File.dirname(__FILE__) + "/fixtures/"
+  self.use_transactional_fixtures = true
+  self.use_instantiated_fixtures  = false
+  
+  fixtures :categories, :notes, :departments
+end