Test for many:many has_many :through deletion

test/more_paranoid_test.rb

@@ -1,6 +1,21 @@
 require 'test_helper'
 
+
 class MoreParanoidTest < ParanoidBaseTest
+  test "bidirectional has_many :through association delete is paranoid" do
+    left = ParanoidManyManyParentLeft.create
+    right = ParanoidManyManyParentRight.create
+    left.paranoid_many_many_parent_rights << right
+
+    child = left.paranoid_many_many_children.first
+    assert_equal left, child.paranoid_many_many_parent_left, "Child's left parent is incorrect"
+    assert_equal right, child.paranoid_many_many_parent_right, "Child's right parent is incorrect"
+
+    left.paranoid_many_many_parent_rights.delete(right)
+
+    assert_paranoid_deletion(child)
+  end
+
   test "delete by multiple id is paranoid" do
     model_a = ParanoidBelongsDependant.create
     model_b = ParanoidBelongsDependant.create

test/test_helper.rb

@@ -118,6 +118,24 @@ def setup_db
 
       t.timestamps
     end
+
+    create_table :paranoid_many_many_parent_lefts do |t|
+      t.string :name
+      t.timestamps
+    end
+
+    create_table :paranoid_many_many_parent_rights do |t|
+      t.string :name
+      t.timestamps
+    end
+
+    create_table :paranoid_many_many_children do |t|
+      t.integer :paranoid_many_many_parent_left_id
+      t.integer :paranoid_many_many_parent_right_id
+      t.datetime :deleted_at
+      t.timestamps
+    end
+
   end
 end
 
@@ -269,6 +287,24 @@ def reset
   end
 end
 
+
+class ParanoidManyManyParentLeft < ActiveRecord::Base
+  has_many :paranoid_many_many_children
+  has_many :paranoid_many_many_parent_rights, :through => :paranoid_many_many_children
+end
+
+class ParanoidManyManyParentRight < ActiveRecord::Base
+  has_many :paranoid_many_many_children
+  has_many :paranoid_many_many_parent_lefts, :through => :paranoid_many_many_children
+end
+
+class ParanoidManyManyChild < ActiveRecord::Base
+  acts_as_paranoid
+  belongs_to :paranoid_many_many_parent_left
+  belongs_to :paranoid_many_many_parent_right
+end
+
+
 ParanoidWithCallback.add_observer(ParanoidObserver.instance)