115 lines
2.5 KiB
Ruby
115 lines
2.5 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class TestCachedCounting
|
|
def self.clear!
|
|
@data = nil
|
|
end
|
|
|
|
def self.data
|
|
@data ||= {}
|
|
end
|
|
|
|
def self.write_cache!(key, count, date)
|
|
data[key] = count
|
|
end
|
|
end
|
|
|
|
describe CachedCounting do
|
|
|
|
it "should be default disabled in test" do
|
|
expect(CachedCounting.enabled?).to eq(false)
|
|
end
|
|
|
|
context "backing implementation" do
|
|
|
|
it "can correctly check for flush to db lock" do
|
|
CachedCounting.clear_flush_to_db_lock!
|
|
|
|
expect(CachedCounting.allowed_to_flush_to_db?).to eq(true)
|
|
expect(CachedCounting.allowed_to_flush_to_db?).to eq(false)
|
|
t = CachedCounting::DB_FLUSH_COOLDOWN_SECONDS
|
|
# let expiry be between 2 seconds to allow for slow calls and so on
|
|
expect(CachedCounting.flush_to_db_lock_ttl).to be_between(t - 2, t)
|
|
|
|
CachedCounting.clear_flush_to_db_lock!
|
|
end
|
|
|
|
context "with a test counting class" do
|
|
before do
|
|
CachedCounting.reset
|
|
TestCachedCounting.clear!
|
|
end
|
|
|
|
it "can dispatch counts to backing class" do
|
|
|
|
CachedCounting.queue("a,a", TestCachedCounting)
|
|
CachedCounting.queue("a,a", TestCachedCounting)
|
|
CachedCounting.queue("b", TestCachedCounting)
|
|
|
|
CachedCounting.flush_in_memory
|
|
CachedCounting.flush_to_db
|
|
|
|
expect(TestCachedCounting.data).to eq({ "a,a" => 2, "b" => 1 })
|
|
|
|
end
|
|
end
|
|
end
|
|
|
|
context "active record" do
|
|
class RailsCacheCounter < ActiveRecord::Base
|
|
include CachedCounting
|
|
self.table_name = "posts"
|
|
|
|
def self.cache_data
|
|
@cache_data ||= {}
|
|
end
|
|
|
|
def self.clear_cache_data
|
|
@cache_data = nil
|
|
end
|
|
|
|
def self.write_cache!(key, val, date)
|
|
cache_data[[key, date]] = val
|
|
end
|
|
end
|
|
|
|
before do
|
|
CachedCounting.reset
|
|
CachedCounting.enable
|
|
end
|
|
|
|
after do
|
|
CachedCounting.disable
|
|
end
|
|
|
|
it "can dispatch data via background thread" do
|
|
|
|
freeze_time
|
|
d1 = Time.now.utc.to_date
|
|
|
|
RailsCacheCounter.perform_increment!("a,a")
|
|
RailsCacheCounter.perform_increment!("b")
|
|
20.times do
|
|
RailsCacheCounter.perform_increment!("a,a")
|
|
end
|
|
|
|
freeze_time 2.days.from_now
|
|
d2 = Time.now.utc.to_date
|
|
|
|
RailsCacheCounter.perform_increment!("a,a")
|
|
RailsCacheCounter.perform_increment!("d")
|
|
|
|
CachedCounting.flush
|
|
|
|
expected = {
|
|
["a,a", d1] => 21,
|
|
["b", d1] => 1,
|
|
["a,a", d2] => 1,
|
|
["d", d2] => 1,
|
|
}
|
|
|
|
expect(RailsCacheCounter.cache_data).to eq(expected)
|
|
end
|
|
end
|
|
end
|