Using ci_reporter with parallel_tests

parallel_ci_reporter.rb

# The way the parallel_tests gem loads the test suite is incompatible with how ci_reporter loads the
# test suite. This module reconciles the difference by recognizing when ci_reporter is expected to
# be loaded and then doing it.
module ParallelCIReporter

  # Sets up ci_reporter if necessary.
  def self.setup_ci_reporter
    install_mediator if ci_reporter?
  end

  # Adds CI::Reporter::TestUnit as a test mediator for Test::Unit.
  def self.install_mediator
    require 'ci/reporter/rake/test_unit_loader'
  end
  private_class_method :install_mediator

  # Tests whether 'ci_reporter' is supposed to be setup. This detects a modification made to the
  # TESTOPTS environment variable that is made in the ci:setup:testunit Rake task.
  def self.ci_reporter?
    ENV["TESTOPTS"] =~ /ci_reporter/
  end
  private_class_method :ci_reporter?

end

ParallelCIReporter.setup_ci_reporter