1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/test/cases/finder_test.rb b/activerecord/test/cases/finder_test.rb
index af33caefa5..c0440744e9 100644
--- a/activerecord/test/cases/finder_test.rb
+++ b/activerecord/test/cases/finder_test.rb
@@ -33,6 +33,12 @@ class FinderTest < ActiveRecord::TestCase
     assert_equal(topics(:first).title, Topic.find(1).title)
   end
 
+  def test_find_passing_active_record_object_is_deprecated
+    assert_deprecated do
+      Topic.find(Topic.last)
+    end
+  end
+
   def test_symbols_table_ref
     Post.first # warm up
     x = Symbol.all_symbols.count
@@ -61,6 +67,12 @@ class FinderTest < ActiveRecord::TestCase
     assert_raise(NoMethodError) { Topic.exists?([1,2]) }
   end
 
+  def test_exists_passing_active_record_object_is_deprecated
+    assert_deprecated do
+      Topic.exists?(Topic.new)
+    end
+  end
+
   def test_exists_fails_when_parameter_has_invalid_type
     if current_adapter?(:PostgreSQLAdapter, :MysqlAdapter)
       assert_raises ActiveRecord::StatementInvalid do