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-rw-r--r--activerecord/test/cases/associations/belongs_to_associations_test.rb21
1 files changed, 21 insertions, 0 deletions
diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb
index 27f6fa575d..76a61d492a 100644
--- a/activerecord/test/cases/associations/belongs_to_associations_test.rb
+++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb
@@ -502,6 +502,27 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase
assert_equal 4, topic.replies.size
end
+ def test_concurrent_counter_cache_double_destroy
+ topic = Topic.create :title => "Zoom-zoom-zoom"
+
+ 5.times do
+ topic.replies.create(:title => "re: zoom", :content => "speedy quick!")
+ end
+
+ assert_equal 5, topic.reload[:replies_count]
+ assert_equal 5, topic.replies.size
+
+ reply = topic.replies.first
+ reply_clone = Reply.find(reply.id)
+
+ reply.destroy
+ assert_equal 4, topic.reload[:replies_count]
+
+ reply_clone.destroy
+ assert_equal 4, topic.reload[:replies_count]
+ assert_equal 4, topic.replies.size
+ end
+
def test_custom_counter_cache
reply = Reply.create(:title => "re: zoom", :content => "speedy quick!")
assert_equal 0, reply[:replies_count]