added acts_as_list plugin

1 files changed, 332 insertions, 0 deletions

diff --git a/vendor/plugins/acts_as_list/test/list_test.rb b/vendor/plugins/acts_as_list/test/list_test.rb
new file mode 100644
index 00000000..e89cb8e1
--- /dev/null
+++ b/vendor/plugins/acts_as_list/test/list_test.rb
@@ -0,0 +1,332 @@
+require 'test/unit'
+
+require 'rubygems'
+gem 'activerecord', '>= 1.15.4.7794'
+require 'active_record'
+
+require "#{File.dirname(__FILE__)}/../init"
+
+ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :dbfile => ":memory:")
+
+def setup_db
+  ActiveRecord::Schema.define(:version => 1) do
+    create_table :mixins do |t|
+      t.column :pos, :integer
+      t.column :parent_id, :integer
+      t.column :created_at, :datetime      
+      t.column :updated_at, :datetime
+    end
+  end
+end
+
+def teardown_db
+  ActiveRecord::Base.connection.tables.each do |table|
+    ActiveRecord::Base.connection.drop_table(table)
+  end
+end
+
+class Mixin < ActiveRecord::Base
+end
+
+class ListMixin < Mixin
+  acts_as_list :column => "pos", :scope => :parent
+
+  def self.table_name() "mixins" end
+end
+
+class ListMixinSub1 < ListMixin
+end
+
+class ListMixinSub2 < ListMixin
+end
+
+class ListWithStringScopeMixin < ActiveRecord::Base
+  acts_as_list :column => "pos", :scope => 'parent_id = #{parent_id}'
+
+  def self.table_name() "mixins" end
+end
+
+
+class ListTest < Test::Unit::TestCase
+
+  def setup
+    setup_db
+    (1..4).each { |counter| ListMixin.create! :pos => counter, :parent_id => 5 }
+  end
+
+  def teardown
+    teardown_db
+  end
+
+  def test_reordering
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_lower
+    assert_equal [1, 3, 2, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_higher
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(1).move_to_bottom
+    assert_equal [2, 3, 4, 1], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(1).move_to_top
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_to_bottom
+    assert_equal [1, 3, 4, 2], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(4).move_to_top
+    assert_equal [4, 1, 3, 2], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  end
+
+  def test_move_to_bottom_with_next_to_last_item
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+    ListMixin.find(3).move_to_bottom
+    assert_equal [1, 2, 4, 3], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  end
+
+  def test_next_prev
+    assert_equal ListMixin.find(2), ListMixin.find(1).lower_item
+    assert_nil ListMixin.find(1).higher_item
+    assert_equal ListMixin.find(3), ListMixin.find(4).higher_item
+    assert_nil ListMixin.find(4).lower_item
+  end
+
+  def test_injection
+    item = ListMixin.new(:parent_id => 1)
+    assert_equal "parent_id = 1", item.scope_condition
+    assert_equal "pos", item.position_column
+  end
+
+  def test_insert
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 1, new.pos
+    assert new.first?
+    assert new.last?
+
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 2, new.pos
+    assert !new.first?
+    assert new.last?
+
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 3, new.pos
+    assert !new.first?
+    assert new.last?
+
+    new = ListMixin.create(:parent_id => 0)
+    assert_equal 1, new.pos
+    assert new.first?
+    assert new.last?
+  end
+
+  def test_insert_at
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 1, new.pos
+
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 2, new.pos
+
+    new = ListMixin.create(:parent_id => 20)
+    assert_equal 3, new.pos
+
+    new4 = ListMixin.create(:parent_id => 20)
+    assert_equal 4, new4.pos
+
+    new4.insert_at(3)
+    assert_equal 3, new4.pos
+
+    new.reload
+    assert_equal 4, new.pos
+
+    new.insert_at(2)
+    assert_equal 2, new.pos
+
+    new4.reload
+    assert_equal 4, new4.pos
+
+    new5 = ListMixin.create(:parent_id => 20)
+    assert_equal 5, new5.pos
+
+    new5.insert_at(1)
+    assert_equal 1, new5.pos
+
+    new4.reload
+    assert_equal 5, new4.pos
+  end
+
+  def test_delete_middle
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).destroy
+
+    assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    assert_equal 1, ListMixin.find(1).pos
+    assert_equal 2, ListMixin.find(3).pos
+    assert_equal 3, ListMixin.find(4).pos
+
+    ListMixin.find(1).destroy
+
+    assert_equal [3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+
+    assert_equal 1, ListMixin.find(3).pos
+    assert_equal 2, ListMixin.find(4).pos
+  end
+
+  def test_with_string_based_scope
+    new = ListWithStringScopeMixin.create(:parent_id => 500)
+    assert_equal 1, new.pos
+    assert new.first?
+    assert new.last?
+  end
+
+  def test_nil_scope
+    new1, new2, new3 = ListMixin.create, ListMixin.create, ListMixin.create
+    new2.move_higher
+    assert_equal [new2, new1, new3], ListMixin.find(:all, :conditions => 'parent_id IS NULL', :order => 'pos')
+  end
+  
+  
+  def test_remove_from_list_should_then_fail_in_list? 
+    assert_equal true, ListMixin.find(1).in_list?
+    ListMixin.find(1).remove_from_list
+    assert_equal false, ListMixin.find(1).in_list?
+  end 
+  
+  def test_remove_from_list_should_set_position_to_nil 
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  
+    ListMixin.find(2).remove_from_list 
+  
+    assert_equal [2, 1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  
+    assert_equal 1,   ListMixin.find(1).pos
+    assert_equal nil, ListMixin.find(2).pos
+    assert_equal 2,   ListMixin.find(3).pos
+    assert_equal 3,   ListMixin.find(4).pos
+  end 
+  
+  def test_remove_before_destroy_does_not_shift_lower_items_twice 
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  
+    ListMixin.find(2).remove_from_list 
+    ListMixin.find(2).destroy 
+  
+    assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5', :order => 'pos').map(&:id)
+  
+    assert_equal 1, ListMixin.find(1).pos
+    assert_equal 2, ListMixin.find(3).pos
+    assert_equal 3, ListMixin.find(4).pos
+  end 
+  
+end
+
+class ListSubTest < Test::Unit::TestCase
+
+  def setup
+    setup_db
+    (1..4).each { |i| ((i % 2 == 1) ? ListMixinSub1 : ListMixinSub2).create! :pos => i, :parent_id => 5000 }
+  end
+
+  def teardown
+    teardown_db
+  end
+
+  def test_reordering
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_lower
+    assert_equal [1, 3, 2, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_higher
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(1).move_to_bottom
+    assert_equal [2, 3, 4, 1], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(1).move_to_top
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).move_to_bottom
+    assert_equal [1, 3, 4, 2], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(4).move_to_top
+    assert_equal [4, 1, 3, 2], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+  end
+
+  def test_move_to_bottom_with_next_to_last_item
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+    ListMixin.find(3).move_to_bottom
+    assert_equal [1, 2, 4, 3], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+  end
+
+  def test_next_prev
+    assert_equal ListMixin.find(2), ListMixin.find(1).lower_item
+    assert_nil ListMixin.find(1).higher_item
+    assert_equal ListMixin.find(3), ListMixin.find(4).higher_item
+    assert_nil ListMixin.find(4).lower_item
+  end
+
+  def test_injection
+    item = ListMixin.new("parent_id"=>1)
+    assert_equal "parent_id = 1", item.scope_condition
+    assert_equal "pos", item.position_column
+  end
+
+  def test_insert_at
+    new = ListMixin.create("parent_id" => 20)
+    assert_equal 1, new.pos
+
+    new = ListMixinSub1.create("parent_id" => 20)
+    assert_equal 2, new.pos
+
+    new = ListMixinSub2.create("parent_id" => 20)
+    assert_equal 3, new.pos
+
+    new4 = ListMixin.create("parent_id" => 20)
+    assert_equal 4, new4.pos
+
+    new4.insert_at(3)
+    assert_equal 3, new4.pos
+
+    new.reload
+    assert_equal 4, new.pos
+
+    new.insert_at(2)
+    assert_equal 2, new.pos
+
+    new4.reload
+    assert_equal 4, new4.pos
+
+    new5 = ListMixinSub1.create("parent_id" => 20)
+    assert_equal 5, new5.pos
+
+    new5.insert_at(1)
+    assert_equal 1, new5.pos
+
+    new4.reload
+    assert_equal 5, new4.pos
+  end
+
+  def test_delete_middle
+    assert_equal [1, 2, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    ListMixin.find(2).destroy
+
+    assert_equal [1, 3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    assert_equal 1, ListMixin.find(1).pos
+    assert_equal 2, ListMixin.find(3).pos
+    assert_equal 3, ListMixin.find(4).pos
+
+    ListMixin.find(1).destroy
+
+    assert_equal [3, 4], ListMixin.find(:all, :conditions => 'parent_id = 5000', :order => 'pos').map(&:id)
+
+    assert_equal 1, ListMixin.find(3).pos
+    assert_equal 2, ListMixin.find(4).pos
+  end
+
+end