Add the library to the test section in your application's Gemfile:

group :test do
  gem 'testcontainers-rabbitmq'
end

And then execute:

$ bundle install

Or install it yourself as:

$ gem install testcontainers-rabbitmq

To use the library, you first need to require it:

require "testcontainers/rabbitmq"

Create a new instance of the Testcontainers::RabbitmqContainer class:

container = Testcontainers::RabbitmqContainer.new

This creates a new container with the default RabbitMQ image, user, password, and vhost. You can customize these by passing arguments to the constructor:

container = Testcontainers::RabbitmqContainer.new("rabbitmq:latest", username: "custom_user", password: "custom_pass", vhost: "custom_vhost")

Start the container:

container.start

Stop the container when you're done:

container.stop

Once the container is running, you can obtain the connection details using the following methods:

host = container.host
port = container.first_mapped_port

Or, you can generate a full RabbitMQ URL:

broker_url = container.rabbitmq_url

container.with_vhost("custom_vhost")
container.with_username("custom_user")
container.with_password("custom_pass")

There are complete examples of how to use testcontainers-rabbitmq to create containers, connects to it, publish and consume simple message:

require "testcontainers/rabbitmq"
require "bunny"

container = Testcontainers::RabbitmqContainer.new
container.start

connection = Bunny.new(container.rabbitmq_url)
connection.start

channel = connection.create_channel
queue = channel.queue('hello')
channel.default_exchange.publish('Hello World!', routing_key: queue.name)

connection.close

The previous example creates a RabbitMQ container, connects to it using bunny gem, then publish a message to a queue named hello

require "testcontainers/rabbitmq"
require "bunny"

container = Testcontainers::RabbitmqContainer.new
container.start

connection = Bunny.new(container.rabbitmq_url)
connection.start

channel = connection.create_channel
queue = channel.queue('hello')

queue.subscribe(block: true) do |_delivery_info, _properties, body|
  puts " [x] Received #{body}"
end

connection.close

The previous example creates a RabbitMQ container, connects to it using bunny gem, then reads messages from a queue named hello

Bug reports and pull requests are welcome on GitHub at https://github.com/testcontainers/testcontainers-ruby. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Testcontainers project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.