discourse/spec/components/redis_store_spec.rb

require 'rails_helper'
require 'cache'

describe "Redis Store" do

  let :cache do
    Cache.new(namespace: 'foo')
  end

  let :store do
    DiscourseRedis.new_redis_store
  end

  before(:each) do
    cache.redis.del "key"
    store.delete "key"
  end

  it "can store stuff" do
    store.fetch "key" do
      "key in store"
    end

    r = store.read "key"

    expect(r).to eq("key in store")
  end

  it "doesn't collide with our Cache" do

    store.fetch "key" do
      "key in store"
    end

    cache.fetch "key" do
      "key in cache"
    end

    r = store.read "key"

    expect(r).to eq("key in store")
  end

  it "can be cleared without clearing our cache" do
    store.fetch "key" do
      "key in store"
    end

    cache.fetch "key" do
      "key in cache"
    end

    store.clear
    expect(store.read("key")).to eq(nil)
    expect(cache.fetch("key")).to eq("key in cache")

  end

end