Sample cucumber support for Vanity

gistfile1.feature

  Scenario: Choose a free plan, then create an account
     When I go to the homepage
      And I follow "Register"
     Then I should see "Find the plan that's right for you"
     When I follow "signup-trial"
     Then I fill in "First Name" with "Joe"
      And I fill in "Last Name" with "Johnson"
      And I fill in "Email" with "joe@joe.com"
      And I fill in "Password" with "test"
      And I fill in "user[password_confirmation]" with "test"
      And I check "I agree"
      And I press "Create my account"
     Then I should see "Thanks for signing up!"
      And only these metrics were recorded:
        | 1 | accounts created |
        | 1 | subscriptions activated |
        | 1 | trial subscriptions activated |

gistfile2.rb

Then /^(only )?these metrics were recorded:$/ do |only, table|
  expected_metrics = {}

  if only
    # Expect 0 on all unnamed metrics
    Vanity.playground.metrics.keys.each do |metric_id|
      expected_metrics[metric_id] = 0
    end
  end

  # Map given names to metric names and their expected value.
  table.raw.each do |(value, metric_name)|
    metric_id = metric_name.gsub(/\s+/, '_').to_sym
    Vanity.playground.metric(metric_id) # ensure the metric name is valid
    expected_metrics[metric_id] = value.to_i
  end

  # Check all expectations.
  expected_metrics.each do |metric_id, expected_value|
    actual = Vanity::Aggregation.new(metric_id).sum
    unless actual == expected_value
      raise Spec::Expectations::ExpectationNotMetError, "Expected #{metric_id} to be #{expected_value}, but was #{actual}"
    end
  end
end