Module: Runger::Testing::Helpers

Defined in:
lib/runger/testing/helpers.rb

Instance Method Summary collapse

Instance Method Details

#with_env(data) ⇒ Object

Sets the ENV variables to the provided values and restore outside the block

Also resets Runger.env before and after calling the block to make sure that the values are not cached.

NOTE: to remove the env value, pass nil as the value



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# File 'lib/runger/testing/helpers.rb', line 11

def with_env(data)
  was_values = []

  data.each do |key, val|
    was_values << [key, ENV.fetch(key, nil)]
    next ENV.delete(key) if val.nil?

    ENV[key] = val
  end

  # clear cached env values
  Runger.env.clear
  yield
ensure
  was_values.each do |(key, val)|
    next ENV.delete(key) if val.nil?

    ENV[key] = val
  end

  # clear cache again
  Runger.env.clear
end