Sha256: 955c905a0ebfc5a77f67cd39269488358fdc6bebd713379b57044a6b484c1add
Contents?: true
Size: 1.15 KB
Versions: 7
Compression:
Stored size: 1.15 KB
Contents
require 'cases/helper'
class PreloadTest < ActiveRecord::CountLoader::TestCase
def setup
tweets_count.times do |i|
tweet = Tweet.create
i.times do |j|
Favorite.create(tweet: tweet, user_id: j + 1)
end
end
end
def teardown
[Tweet, Favorite].each(&:delete_all)
end
def tweets_count
3
end
def test_preload_does_not_execute_n_1_queries
assert_queries(1 + tweets_count) { Tweet.all.map { |t| t.favorites.count } }
assert_queries(1 + tweets_count) { Tweet.all.map(&:favorites_count) }
assert_queries(2) { Tweet.preload(:favorites_count).map(&:favorites_count) }
end
def test_preloaded_count_loader_counts_properly
expected = Tweet.all.map { |t| t.favorites.count }
assert_equal(expected, Tweet.all.map(&:favorites_count))
assert_equal(expected, Tweet.preload(:favorites_count).map(&:favorites_count))
end
def test_preloaded_count_loader_with_scope_counts_properly
expected = Tweet.all.map { |t| t.my_favorites.count }
assert_equal(expected, Tweet.all.map(&:my_favorites_count))
assert_equal(expected, Tweet.preload(:my_favorites_count).map(&:my_favorites_count))
end
end
Version data entries
7 entries across 7 versions & 1 rubygems