brew/Library/Homebrew/test/test_mpi_requirement.rb

require 'testing_env'
require 'requirements/mpi_requirement'

class MPIRequirementTests < Homebrew::TestCase
  def test_initialize_untangles_tags_and_wrapper_symbols
    wrappers = [:cc, :cxx, :f77]
    tags = [:optional, 'some-other-tag']
    dep = MPIRequirement.new(*wrappers + tags)
    assert_equal wrappers, dep.lang_list
    assert_equal tags, dep.tags
  end
end