1 files changed, 9 insertions, 0 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index 88a12c61df..f814947ab2 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -42,6 +42,11 @@ class RelationTest < ActiveRecord::TestCase
   end
 
   def test_two_scopes_with_includes_should_not_drop_any_include
+    # heat habtm cache
+    car = Car.incl_engines.incl_tyres.first
+    car.tyres.length
+    car.engines.length
+
     car = Car.incl_engines.incl_tyres.first
     assert_no_queries { car.tyres.length }
     assert_no_queries { car.engines.length }
@@ -300,6 +305,10 @@ class RelationTest < ActiveRecord::TestCase
     assert_equal({}, Developer.none.where_values_hash)
   end
 
+  def test_null_relation_where_values_hash
+    assert_equal({ 'salary' => 100_000 }, Developer.none.where(salary: 100_000).where_values_hash)
+  end
+
   def test_joins_with_nil_argument
     assert_nothing_raised { DependentFirm.joins(nil).first }
   end