```ruby

Given /^I have a membership id "(.*?)"$/ do |membership_id|
  @membership_id = membership_id
end

Given /^I requested (\d+) membership at the level called "(.*?)"$/ do |quantity, membership_level|
  @quantity = quantity
  @membership_level = membership_level
  @line_items = [{
      'quantity'    => quantity,
      'base_price'  => nil,
      'description' => nil,
      'payment_method' => 'invoice'
  }]
end

Given /^I requested membership at the level called "(.*?)"$/ do |membership_level|
  @membership_level = membership_level
end

When /^the signup processor runs$/ do
  organization, contact_person, billing, purchase = create_signup_processor_membership_hash
  SignupProcessor.perform(organization, contact_person, billing, purchase)
end

Given(/^I am paying by "(.*?)"$/) do |method|
  @payment_method = method
end

Given(/^I want to pay on an? "(.*?)" basis$/) do |period|
  @payment_freq = period
  # Even if paying monthly, invoices are raised annually
  @invoice_freq = 'annual'
end

Given(/^my payment reference is "(.*?)"$/) do |ref|
  @payment_ref = ref
end
```

Set payment method to invoice
user
```ruby

Given /^I have a membership id "(.*?)"$/ do |membership_id|
  @membership_id = membership_id
end

Given /^I requested (\d+) membership at the level called "(.*?)"$/ do |quantity, membership_level|
  @quantity = quantity
  @membership_level = membership_level
  @payment_method = 'invoice'
  @line_items = [{
      'quantity'    => quantity,
      'base_price'  => nil,
      'description' => nil
  }]
end

Given /^I requested membership at the level called "(.*?)"$/ do |membership_level|
  @membership_level = membership_level
end

When /^the signup processor runs$/ do
  organization, contact_person, billing, purchase = create_signup_processor_membership_hash
  SignupProcessor.perform(organization, contact_person, billing, purchase)
end

Given(/^I am paying by "(.*?)"$/) do |method|
  @payment_method = method
end

Given(/^I want to pay on an? "(.*?)" basis$/) do |period|
  @payment_freq = period
  # Even if paying monthly, invoices are raised annually
  @invoice_freq = 'annual'
end

Given(/^my payment reference is "(.*?)"$/) do |ref|
  @payment_ref = ref
end
```
assistant