discourse/spec/components/discourse_redis_spec.rb

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# frozen_string_literal: true
require 'rails_helper'
describe DiscourseRedis do
it "ignore_readonly returns nil from a pure exception" do
result = DiscourseRedis.ignore_readonly { raise Redis::CommandError.new("READONLY") }
expect(result).to eq(nil)
end
describe 'redis commands' do
let(:raw_redis) { Redis.new(DiscourseRedis.config) }
before do
raw_redis.flushdb
end
after do
raw_redis.flushdb
end
describe 'when namespace is enabled' do
let(:redis) { DiscourseRedis.new }
it 'should append namespace to the keys' do
raw_redis.set('default:key', 1)
raw_redis.set('test:key2', 1)
expect(redis.keys).to include('key')
expect(redis.keys).to_not include('key2')
expect(redis.scan_each.to_a).to eq(['key'])
redis.scan_each.each do |key|
expect(key).to eq('key')
end
redis.del('key')
expect(raw_redis.get('default:key')).to eq(nil)
expect(redis.scan_each.to_a).to eq([])
raw_redis.set('default:key1', '1')
raw_redis.set('default:key2', '2')
expect(redis.mget('key1', 'key2')).to eq(['1', '2'])
expect(redis.scan_each.to_a).to contain_exactly('key1', 'key2')
end
end
describe 'when namespace is disabled' do
let(:redis) { DiscourseRedis.new(nil, namespace: false) }
it 'should not append any namespace to the keys' do
raw_redis.set('default:key', 1)
raw_redis.set('test:key2', 1)
expect(redis.keys).to include('default:key', 'test:key2')
redis.del('key')
expect(raw_redis.get('key')).to eq(nil)
raw_redis.set('key1', '1')
raw_redis.set('key2', '2')
expect(redis.mget('key1', 'key2')).to eq(['1', '2'])
end
it 'should noop a readonly redis' do
expect(Discourse.recently_readonly?).to eq(false)
redis.without_namespace
.expects(:set)
.raises(Redis::CommandError.new("READONLY"))
redis.set('key', 1)
expect(Discourse.recently_readonly?).to eq(true)
end
end
end
end