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CONTRIBUTING.md

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Overview

This project does not use GitHub issues for questions, investigations, discussions, and so on. Issues are appropriate for something specific enough for a maintainer or contributor to work on:

  • There should be enough information to reproduce the behavior observed in a reasonable amount of time
  • It should be reasonably clear why the behavior should be changed and why this cannot or should not be addressed in application code, a separate library and so on

All issues that do not satisfy the above properties belong to the Ruby RabbitMQ clients mailing list. Pull request that do not satisfy them have a high chance of being closed.

Submitting a Pull Request

Please read the sections below to get an idea about how to run Bunny test suites first. Successfully running all tests, at least with CI environment variable exported to true, is an important first step for any contributor.

Once you have a passing test suite, create a branch and make your changes on it. When you are done with your changes and all tests pass, write a good, detailed commit message submit a pull request on GitHub.

Pre-requisites

The project uses Bundler for dependency management and requires RabbitMQ 3.5+ to be running locally with the rabbitmq-management and rabbitmq_consistent_hash_exchange plugins enabled.

Running the Specs

The specs require RabbitMQ to be running locally with a specific set of vhosts and users. RabbitMQ can be provisioned and started any way that's convenient to you as long as it has a suitable TLS keys configuration and management plugin enabled. Make sure you have a recent version of RabbitMQ (> 3.5.3).

You can also start a clean RabbitMQ server node on your machine specifically for the bunny specs. This can be done either by using a locally installed RabbitMQ server or by running a RabbitMQ server in a Docker container.

Using a locally installed RabbitMQ server

Run the following command from the base directory of the gem:

RABBITMQ_NODENAME=bunny RABBITMQ_CONFIG_FILE=./spec/config/rabbitmq RABBITMQ_ENABLED_PLUGINS_FILE=./spec/config/enabled_plugins rabbitmq-server

The specs use the RabbitMQ management plugin and require a TLS port to be available. The config files in the spec/config directory enable these. TLS (x509 PEM) certificates include a hostname-specific fields, the tests allow for expecting hostname overriding using the BUNNY_RABBITMQ_HOSTNAME environment variables (default value is 127.0.0.1).

Server, CA and client certificates can be found under spec/tls. The location can be overridden via the BUNNY_CERTIFICATE_DIR environment variable. It is supposed to target tls-gen's basic profile output (result) directory on the host where specs are to be executed.

Next up you'll need to prepare your node for the specs (just once):

RABBITMQ_NODENAME=bunny ./bin/ci/before_build

The script uses rabbitmqctl and rabbitmq-plugins to set up RabbitMQ in a way that Bunny test suites expect. Two environment variables, RABBITMQCTL and RABBITMQ_PLUGINS, are available to control what rabbitmqctl and rabbitmq-plugins commands will be used. By default they are taken from PATH and prefixed with sudo.

And then run the core integration suite:

RABBITMQ_NODENAME=bunny CI=true rspec

Running a RabbitMQ server in a Docker container

First off you have to install Docker Compose (and by proxy Docker). Version >= 1.6.0+ is required for compose version 2 syntax.

After those have been installed (and the docker-compose command is available on your command line path), run

docker-compose up

The first time you do this, it will take some time, since it has to download everything it needs to build the Docker image.

The RabbitMQ server will run in the foreground in the terminal where you started it. You can stop it by pressing CTRL+C. If you want to run it in the background, run docker-compose up -d.

Running Test Suites

Prior to running the tests, configure the RabbitMQ permissions by running ./bin/ci/before_build if you have RabbitMQ locally installed, if you are running RabbitMQ via Docker as above this step is not required as the setup is baked in.

Make sure you have those two installed and then run integration tests:

bundle install
rake integration

It is possible to run all tests:

bundle exec rspec -c

It is possible to run only integration and regression tests but exclude unit and stress tests:

CI=true bundle exec rspec -c spec/higher_level_api/ spec/lower_level_api spec/issues && bundle exec rspec -c spec/higher_level_api/integration/connection_recovery_spec.rb