Node deletion problem while removing spam solved

app/models/answer.rb

@@ -3,7 +3,7 @@ class Answer < ActiveRecord::Base
 
   attr_accessible :uid, :nid, :content, :cached_likes, :created_at, :updated_at
 
-  belongs_to :node, foreign_key: 'nid', dependent: :destroy
+  belongs_to :node, foreign_key: 'nid'
   belongs_to :drupal_user, foreign_key: 'uid'
   has_many :answer_selections, foreign_key: 'aid'
   has_many :comments, foreign_key: 'aid', dependent: :destroy

app/models/node.rb

@@ -49,7 +49,7 @@ def updated_month
   has_many :drupal_content_field_map_editor, foreign_key: 'nid' #, dependent: :destroy # re-enable in Rails 5
   has_many :images, foreign_key: :nid
   has_many :node_selections, foreign_key: :nid
-  has_many :answers, foreign_key: :nid
+  has_many :answers, foreign_key: :nid, dependent: :destroy
 
   belongs_to :drupal_user, foreign_key: 'uid'
 

test/functional/answers_controller_test.rb

@@ -139,4 +139,17 @@ def setup
     assert answer.accepted
   end
 
+  test 'answer deletion should not delete the question node' do
+    UserSession.create(users(:moderator))
+    answer = answers(:one)
+    answer.save
+    a = Answer.count
+    b = Node.count
+
+    xhr :post, :delete, id: answer.id
+
+    assert_equal Answer.count ,a - 1
+    assert_equal Node.count,b
+    assert_response :success
+  end
 end

test/functional/notes_controller_test.rb

@@ -648,4 +648,20 @@ def test_get_rss_feed
     assert_equal "Only author can access the draft note", flash[:notice]
   end
 
+  test 'question deletion should delete all its answers' do
+    UserSession.create(users(:moderator))
+    node = nodes(:question)
+    node.save
+    answer1 = answers(:one)
+    answer1.save
+    answer2 = answers(:two)
+    answer2.save
+    n_count = Node.count
+
+    xhr :post, :delete, id: node.id
+
+    assert_response :success
+    assert_equal Node.count, n_count - 1
+    assert_equal Answer.count, 0
+  end
 end