"Ambiguous match, found 2 elements matching visible link" issue

Question

I've looked through a few posts with the same issue, but still feel like mine is a bit different.

viewing_categories_spec.rb

require 'rails_helper'

RSpec.feature 'Users can view categories' do
    scenario 'with the category details' do
        category = FactoryBot.create(:category, name: 'Real Estate')

        visit '/categories'
        click_link('Real Estate')
        expect(page.current_url).to eq category_url(category)
    end
end

category_factory.rb

FactoryBot.define do
    factory :category do
      name {"Computers"}
    end
end

when I run rspec, I'm getting an error:

Failures:

1) Users can view categories with the category details Failure/Error: click_link('Real Estate')

 Capybara::Ambiguous:
   Ambiguous match, found 2 elements matching visible link "Real Estate"
 # ./spec/features/viewing_categories_spec.rb:8:in `block (2 levels) in <main>'

Then I've modified spec by adding match: :first:

require 'rails_helper'

RSpec.feature 'Users can view categories' do
    scenario 'with the category details' do
        category = FactoryBot.create(:category, name: 'Real Estate')

        visit '/categories'
        click_link('Real Estate', match: :first)
        expect(page.current_url).to eq category_url(category)
    end
end

This time I got error:

Failures:

  1) Users can view categories with the category details
     Failure/Error: expect(page.current_url).to eq category_url(category)

       expected: "http://www.example.com/categories/265"
            got: "http://www.example.com/categories/17"

       (compared using ==)
     # ./spec/features/viewing_categories_spec.rb:9:in `block (2 levels) in <main>'

I noticed that sometimes, I'm not seeing the error and sometimes it shown up.

The only thing I see always is "http://www.example.com/categories/17". This part remains same always when I run rspec command.

The full source code is here https://github.com/tenzan/kaganat

Answer 1

“ http://www.example.com/categories/17”网址是恒定不变的，并且当您的测试似乎只能创建一个测试时，水豚在页面上看到两个“房地产”链接，这使我相信您还有一些旧数据在您的测试数据库中。通过选择使用match: :first，您已经掩盖了以下事实：现有记录比预期的多，并且错误应该是您的第一个线索（以及仅查看测试运行的屏幕截图）。像

rails db:reset RAILS_ENV=test

将清除您的测试数据库，并确保您没有旧数据徘徊。您还希望返回没有：match设置的原始click_link('Real Estate')。此外，如果要进行稳定的测试，则几乎不应该对Capybara返回的对象使用标准的RSpec匹配器（“ eq”等），因为页面加载/行为是异步的。相反，您应该使用水豚提供的匹配器。在您当前的示例中，这意味着您应该写expect(page.current_url).to eq category_url(category)

而不是写expect(page).to have_current_path(category_url(category))