fix querying with an empty hash

Closes #6960

1 files changed, 10 insertions, 1 deletions

diff --git a/activerecord/test/cases/relation/where_test.rb b/activerecord/test/cases/relation/where_test.rb
index 3163cf79ad..9c0b139dbf 100644
--- a/activerecord/test/cases/relation/where_test.rb
+++ b/activerecord/test/cases/relation/where_test.rb
@@ -4,10 +4,11 @@ require 'models/price_estimate'
 require 'models/treasure'
 require 'models/post'
 require 'models/comment'
+require 'models/edge'
 
 module ActiveRecord
   class WhereTest < ActiveRecord::TestCase
-    fixtures :posts
+    fixtures :posts, :edges
 
     def test_belongs_to_shallow_where
       author = Author.new
@@ -76,5 +77,13 @@ module ActiveRecord
       post = Post.first
       assert_equal post, Post.where(:posts => { 'id' => post.id }).first
     end
+
+    def test_where_with_table_name_and_empty_hash
+      assert_equal 0, Post.where(:posts => {}).count
+    end
+
+    def test_where_with_empty_hash_and_no_foreign_key
+      assert_equal 0, Edge.where(:sink => {}).count
+    end
   end
 end