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Diffstat (limited to 'activerecord/test/cases/counter_cache_test.rb')
-rw-r--r-- | activerecord/test/cases/counter_cache_test.rb | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/activerecord/test/cases/counter_cache_test.rb b/activerecord/test/cases/counter_cache_test.rb index 1f5055b2a2..922cb59280 100644 --- a/activerecord/test/cases/counter_cache_test.rb +++ b/activerecord/test/cases/counter_cache_test.rb @@ -1,6 +1,7 @@ require 'cases/helper' require 'models/topic' require 'models/car' +require 'models/aircraft' require 'models/wheel' require 'models/engine' require 'models/reply' @@ -198,4 +199,16 @@ class CounterCacheTest < ActiveRecord::TestCase assert_equal 2, car.engines_count assert_equal 2, car.reload.engines_count end + + test "update counters in a polymorphic relationship" do + aircraft = Aircraft.create! + + assert_difference 'aircraft.reload.wheels_count' do + aircraft.wheels << Wheel.create! + end + + assert_difference 'aircraft.reload.wheels_count', -1 do + aircraft.wheels.first.destroy + end + end end |