diff options
Diffstat (limited to 'activerecord/test/cases/counter_cache_test.rb')
| -rw-r--r-- | activerecord/test/cases/counter_cache_test.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/activerecord/test/cases/counter_cache_test.rb b/activerecord/test/cases/counter_cache_test.rb index 96a0edea34..1f5055b2a2 100644 --- a/activerecord/test/cases/counter_cache_test.rb +++ b/activerecord/test/cases/counter_cache_test.rb @@ -189,4 +189,13 @@ class CounterCacheTest < ActiveRecord::TestCase assert_equal 2, car.engines_count assert_equal 2, car.reload.engines_count end + + test "counter caches are updated in memory when the default value is nil" do + car = Car.new(engines_count: nil) + car.engines = [Engine.new, Engine.new] + car.save! + + assert_equal 2, car.engines_count + assert_equal 2, car.reload.engines_count + end end |