testing.md

Table Of Contents:

• Testing Markdown
• Testing Mailers
• Testing Order

Markdown

• Create the object that will be rendering markdown and give it some potential tags
• Assert that the proper html tags have been rendered on the page

scenario "view an individual assignment rendered in markdown" do
  assignment = FactoryGirl.create(
    :assignment, body: "## Foo\n\nbar\n\n* item 1\n* item 2")

  visit assignment_path(assignment)

  expect(page).to have_content(assignment.title)
  expect(page).to have_selector("h2", "Foo")
  expect(page).to have_selector("p", "bar")
  expect(page).to have_selector("li", "item 1")
  expect(page).to have_selector("li", "item 2")
end

Mailers

• add email_spec to Gemfile and budle
• add these configs to rails_helper

config.include(EmailSpec::Helpers)
config.include(EmailSpec::Matchers)

Here is an example acceptance test:

scenario 'specifies valid information, registers spot' do
  #clear out mail deliveries
  ActionMailer::Base.deliveries = []

  prev_count = ParkingRegistration.count
  visit '/'
  fill_in 'First name', with: 'John'
  fill_in 'Last name', with: 'Smith'
  fill_in 'Email', with: '[email protected]'
  fill_in 'Spot number', with: 5
  click_button 'Register'

  expect(page).to have_content('You registered successfully')
  expect(ParkingRegistration.count).to eq(prev_count + 1)

  # upon registering, a confirmation email should be delivered,
  # so ActionMailer::Base.deliveries should include the email:
  expect(ActionMailer::Base.deliveries.size).to eql(1)

  # the email we just sent should have the proper subject and recipient:
  last_email = ActionMailer::Base.deliveries.last
  expect(last_email).to have_subject('Parking Confirmation')
  expect(last_email).to deliver_to('[email protected]')
end

Order

How to test that things are in the proper order with capybara:

Capybara saves the index of all text on the page with a special property called page.body.index(<some text here>) We can use that to assert that some text appears before or after some other text.

Here is an example of a test to make sure new posts appear before old posts:

scenario 'newest posts appear at the top' do
  old_post = FactoryGirl.create(:post, description: 'old post', created_at: 5.days.ago)
  new_post = FactoryGirl.create(:post, description: 'new post')

  visit posts_path

  expect(page.body.index(old_post.description) >
  page.body.index(new_post.description))
end