Remove deprecated automatic counter caches on `has_many :through`

1 files changed, 0 insertions, 26 deletions

diff --git a/activerecord/test/cases/associations/deprecated_counter_cache_on_has_many_through_test.rb b/activerecord/test/cases/associations/deprecated_counter_cache_on_has_many_through_test.rb
deleted file mode 100644
index 48f7ddbe83..0000000000
--- a/activerecord/test/cases/associations/deprecated_counter_cache_on_has_many_through_test.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-require "cases/helper"
-
-class DeprecatedCounterCacheOnHasManyThroughTest < ActiveRecord::TestCase
-  class Post < ActiveRecord::Base
-    has_many :taggings, as: :taggable
-    has_many :tags, through: :taggings
-  end
-
-  class Tagging < ActiveRecord::Base
-    belongs_to :taggable, polymorphic: true
-    belongs_to :tag
-  end
-
-  class Tag < ActiveRecord::Base
-  end
-
-  test "counter caches are updated in the database if the belongs_to association doesn't specify a counter cache" do
-    post = Post.create!(title: 'Hello', body: 'World!')
-    assert_deprecated { post.tags << Tag.create!(name: 'whatever') }
-
-    assert_equal 1, post.tags.size
-    assert_equal 1, post.tags_count
-    assert_equal 1, post.reload.tags.size
-    assert_equal 1, post.reload.tags_count
-  end
-end