mirror of
https://github.com/discourse/discourse.git
synced 2024-12-11 19:26:19 +08:00
3e50313fdc
Since rspec-rails 3, the default installation creates two helper files: * `spec_helper.rb` * `rails_helper.rb` `spec_helper.rb` is intended as a way of running specs that do not require Rails, whereas `rails_helper.rb` loads Rails (as Discourse's current `spec_helper.rb` does). For more information: https://www.relishapp.com/rspec/rspec-rails/docs/upgrade#default-helper-files In this commit, I've simply replaced all instances of `spec_helper` with `rails_helper`, and renamed the original `spec_helper.rb`. This brings the Discourse project closer to the standard usage of RSpec in a Rails app. At present, every spec relies on loading Rails, but there are likely many that don't need to. In a future pull request, I hope to introduce a separate, minimal `spec_helper.rb` which can be used in tests which don't rely on Rails.
50 lines
944 B
Ruby
50 lines
944 B
Ruby
require 'rails_helper'
|
|
require_dependency 'distributed_mutex'
|
|
|
|
describe DistributedMutex do
|
|
it "allows only one mutex object to have the lock at a time" do
|
|
mutexes = (1..10).map do
|
|
DistributedMutex.new("test_mutex_key")
|
|
end
|
|
|
|
x = 0
|
|
mutexes.map do |m|
|
|
Thread.new do
|
|
m.synchronize do
|
|
y = x
|
|
sleep 0.001
|
|
x = y + 1
|
|
end
|
|
end
|
|
end.map(&:join)
|
|
|
|
expect(x).to eq(10)
|
|
end
|
|
|
|
it "handles auto cleanup correctly" do
|
|
m = DistributedMutex.new("test_mutex_key")
|
|
|
|
$redis.setnx "test_mutex_key", Time.now.to_i - 1
|
|
|
|
|
|
start = Time.now.to_i
|
|
m.synchronize do
|
|
"nop"
|
|
end
|
|
|
|
# no longer than a second
|
|
expect(Time.now.to_i).to be <= start + 1
|
|
end
|
|
|
|
it "maintains mutex semantics" do
|
|
m = DistributedMutex.new("test_mutex_key")
|
|
|
|
expect {
|
|
m.synchronize do
|
|
m.synchronize{}
|
|
end
|
|
}.to raise_error(ThreadError)
|
|
end
|
|
|
|
end
|