Configure parallel tests with Ruby (RSpec) - Amazon CodeBuild
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Configure parallel tests with Ruby (RSpec)

The following is sample of a buildspec.yml that shows parallel test execution with RSpec on an Ubuntu platform:

version: 0.2

batch:
  fast-fail: false
  build-fanout:
    parallelism: 5
    ignore-failure: false

phases:
  install:
    commands:
      - echo 'Installing Ruby dependencies'
      - apt-get update
      - apt-get install -y ruby ruby-dev build-essential
      - gem install bundler
      - bundle install
  build:
    commands:
      - echo 'Running Ruby Tests'
      - |
         codebuild-tests-run \
          --test-command 'bundle exec rspec' \
          --files-search "codebuild-glob-search 'spec/**/*_spec.rb'" \
          --sharding-strategy 'equal-distribution'
  post_build:
    commands:
      - echo "Test execution completed"