Capybara:测试页面创建对象的当前路径

Question

创建新对象后应重定向到动作节目.我如何检查当前路径？

feature 'add lost pet' do
  given(:data) {attributes_for(:lost_pet)}

  background do
    visit  root_path
    click_on 'Register new lost pet'
  end

  scenario 'add new lost pet with valid data' do
    within '#new_lost_pet' do
      fill_in 'Name', with: data[:name]
      fill_in 'Type', with: data[:type]
      fill_in 'Breed', with: data[:breed]
      fill_in 'Gender', with: data[:gender]
      fill_in 'Size', with: data[:size]
      fill_in 'Colour', with: data[:colour]
      fill_in 'Age', with: data[:age]
      fill_in 'Age unit', with: data[:age_unit]
      fill_in 'Description', with: data[:description]
      fill_in 'Collar description', with: data[:collar_description]
      check 'Desexed', :checked
      check 'Microchipped', :checked
      fill_in 'Microchip number', with: data[:microchipped_number]
      select '2015', from: "lost_pet[date_missing(1i)]"
      select 'October', from: 'lost_pet[date_missing(2i)]'
      select '10', from: 'lost_pet[date_missing(3i)]'
      fill_in 'Rewald', with: data[:rewald]
      fill_in 'Image', with: data[:image]
      fill_in 'Adress lost', with: data[:adress_lost]

      click_on 'Create'
    end  

    expect(current_path).to eq lost_pet_path(????)


  end

对于lost_pet_path我需要id,但是我如何创建id？或者如何更好地检查Capybara的路径？

Answer 1

expect(current_path).to eq ...

不使用Capybara的等待行为 - 这意味着由于click_on是异步的(不等待屏幕上的任何内容,或者提交完成),您的测试可能非常不稳定.你用得好多了

expect(page).to have_current_path(expected_path)

因为那将在检查预期路径时使用Capybara的等待行为.

最重要的是你有一个问题,就是在click_on执行(异步)之后还没有创建LostPet对象,因此调用LostPet.last很可能会返回nil.你有几个选择

等待一些将出现在页面上的文本

expect(page).to have_text('Lost Pet created') # shows in a flash message, or header on the show page, etc
# since you know the show page is visible now you can query for the last LostPet created
expect(page).to have_current_path(lost_pet_path(LostPet.last)) 

或者,使用带有have_current_path的正则表达式选项,并且不必担心验证URL的实际ID

expect(page).to have_current_path(/lost_pet\/[0-9]+/) # match the regex to whatever your urls actually are

或类似的东西

Answer 2

由于创建的记录是数据库中最新的一条，因此MyActiveRecordModel.last可以使用。

lost_pet = LostPet.last
expect(current_path).to eq lost_pet_path(lost_pet)