Added tree mixin and unit tests for all the mixins

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@156 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 101 insertions, 0 deletions

diff --git a/activerecord/test/mixin_test.rb b/activerecord/test/mixin_test.rb
new file mode 100644
index 0000000000..cc56bc7cec
--- /dev/null
+++ b/activerecord/test/mixin_test.rb
@@ -0,0 +1,101 @@
+require 'abstract_unit'
+require 'active_record/mixins/tree'
+require 'active_record/mixins/list'
+require 'active_record/mixins/touch'
+require 'fixtures/mixin'
+
+class TreeTest < Test::Unit::TestCase
+  fixtures :mixins
+  
+  def test_has_child
+    assert_equal true, @first.has_children?
+    assert_equal false, @second.has_children?
+    assert_equal false, @third.has_children?
+  end
+
+  def test_children
+    assert_equal @first.children, [@second, @third]
+    assert_equal @second.children, []
+  end
+
+  def test_parent
+    assert_equal @second.parent, @first
+    assert_equal @second.parent, @third.parent
+    assert_nil @first.parent
+  end
+  
+  def test_insert
+    @extra = @first.children.create
+    
+    assert @extra
+    
+    assert_equal @extra.parent, @first
+    assert_equal [@second, @third, @extra], @first.children
+  end
+  
+  def test_delete
+    assert_equal 3, Mixin.count
+    @first.destroy
+    assert_equal 0, Mixin.count
+  end
+end
+
+class TouchTest < Test::Unit::TestCase
+  fixtures :mixins
+  
+  def test_update
+    assert_nil @first.updated_at
+    @first.save
+    assert_not_nil @first.updated_at
+  end  
+
+  def test_create
+    @obj = Mixin.create({"parent" => @third})
+    assert_not_nil @obj.updated_at
+    assert_not_nil @obj.created_at
+  end  
+  
+  
+end
+
+
+class ListTest < Test::Unit::TestCase
+  fixtures :mixins
+  
+  def test_reordering
+    
+    assert_equal [ListMixin.find(2), ListMixin.find(3)], ListMixin.find_all("parent_id=1", "pos")
+    
+    ListMixin.find(2).move_lower
+    
+    assert_equal [ListMixin.find(3), ListMixin.find(2)], ListMixin.find_all("parent_id=1", "pos")
+    
+    ListMixin.find(2).move_higher
+
+    assert_equal [ListMixin.find(2), ListMixin.find(3)], ListMixin.find_all("parent_id=1", "pos")
+    
+  end
+
+  def test_insert
+    new = ListMixin.create("parent_id"=>3)
+    assert_equal 1, new.pos
+    assert new.first?
+    assert new.last?
+
+    new = ListMixin.create("parent_id"=>3)
+    assert_equal 2, new.pos
+    assert !new.first?
+    assert new.last?
+    
+    new = ListMixin.create("parent_id"=>3)
+    assert_equal 3, new.pos    
+    assert !new.first?
+    assert new.last?
+    
+    new = ListMixin.create("parent_id"=>2)
+    assert_equal 1, new.pos
+    assert new.first?
+    assert new.last?
+
+  end  
+end
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