chinwagsocial/spec/models/home_feed_spec.rb
Eugen Rochko f665901e3c
Fix performance of home feed regeneration (#12084)
Fetching statuses from all followed accounts at once takes too long
within Postgres. Fetching them one by one and merging in Ruby
could be a lot less resource-intensive

Because the query for dynamically fetching the home timeline is so
heavy, we can no longer offer it when the home timeline is missing
2019-10-06 22:11:17 +02:00

44 lines
1.1 KiB
Ruby

require 'rails_helper'
RSpec.describe HomeFeed, type: :model do
let(:account) { Fabricate(:account) }
subject { described_class.new(account) }
describe '#get' do
before do
Fabricate(:status, account: account, id: 1)
Fabricate(:status, account: account, id: 2)
Fabricate(:status, account: account, id: 3)
Fabricate(:status, account: account, id: 10)
end
context 'when feed is generated' do
before do
Redis.current.zadd(
FeedManager.instance.key(:home, account.id),
[[4, 4], [3, 3], [2, 2], [1, 1]]
)
end
it 'gets statuses with ids in the range from redis' do
results = subject.get(3)
expect(results.map(&:id)).to eq [3, 2]
expect(results.first.attributes.keys).to eq %w(id updated_at)
end
end
context 'when feed is being generated' do
before do
Redis.current.set("account:#{account.id}:regeneration", true)
end
it 'returns nothing' do
results = subject.get(3)
expect(results.map(&:id)).to eq []
end
end
end
end