aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases
diff options
context:
space:
mode:
Diffstat (limited to 'activerecord/test/cases')
-rw-r--r--activerecord/test/cases/counter_cache_test.rb9
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