...and not_change { Video.count } The above example will call playlist.destroy only once, but test both assertions. Note When you chain multiple Capybara matchers using and, Capybara will retry all matchers...
...column} <@ array[:expected_values]", expected_values:) end end ..and include their specs to your test suite: describe ApplicationRecord do describe '.where_array_matches!' do let!(:matching_user) { create(:user, movie...
I recently stumbled over a problem that my feature tests broke in CI because of a mismatching chromedriver version. In this specific project we have a fixed Chromium version in...
...a Debian 12 environment instead of Chrome. The tests however used a recent chrome version instead. $ chromedriver --version ChromeDriver 117.0.5938.149 (e3344ddefa12e60436fa28c81cf207c1afb4d0a9-refs/branch-heads/5938@{#1539}) $ chromium --version Chromium 117.0.5938.149 built on...
...for the required model Write the controller first for the required model Write the tests first for the code bad: While doing this you can for example see easier when...
...sharing was completed. Note that this will only work on https pages, so to test it in development, you will have to start your development server with SSL...
...show the message "Your account is not activated yet." super && active? end end Your tests should at least cover: Signed in users are logged out on the next request once...
...don't need any "conversion" hacks which try to replace commas with dots. Additionally, tests which control browsers with Selenium will also see point-formatted values on non-English locales...
...the number of requests for a single IP address. Bash Command awk '{ print $1}' test.log | sort | uniq --count Result 1 87.140.79.41 3 87.140.79.42 Explain awk '{ print $1}' test.log...
...to use Edge Rider for new projects, which is being actively maintained and has test coverage for all versions of Rails...
# At this point we want to stop in the debugger for all following tests, when the :lock call runs into the after_save $debug = true expect { user.lock }.to change...
...marked for destruction self.amount = invoice_items.reject(&:marked_for_destruction?).sum(&:amount) end end How to test the correct behaviour in rspec it 'ignores invoice items marked for destruction in a nested...
...consecutive calls of Time.now probably return two inequal values. Consider freezing time in your tests so it is not dependent on the speed of the executing PC: Timecop.freeze(Time.now.round) do...
...that, so I hope it will be fixed with a future release. The following test succeeds: context 'factories' do let(:test_case) { FactoryBot.create(:test_case) } it 'are valid' do
...test_case).to be_valid end end But when I did the same in byebug the following happened: (byebug) FactoryBot.create(:test_case) *** NameError Exception: uninitialized constant # ::TargetLimitation
...be an issue, but can be annoying to deal with during development and in tests. To avoid this use Rationals conversion_factor = Rational('1') / Rational('3.6') # => (5/18) result = Rational...
...receive(:env).and_return('production'.inquiry) puts Rails.env # prints "production" end puts Rails.env # prints "test" Note that, when overriding pre-existing mocks inside the block, they are not reverted to...
Don't use reruns as a mean to work around flaky tests. You should always try to fix those instead of rerunning them regularly. Setup Configure RSpec to persist...
...the result of your test runs to a file. This is necessary to be able to rerun examples. Add this to your spec/spec_helper.rb : config.example_status_persistence_file_path = 'spec/examples.txt'
...you use Rubocop or Capybara. These gems most often live in your development and/or test group of the Gemfile and require English for you. Therefore to ensure that the library...
When your application is open for public sign up and sends out transactional e-mails to a large number of...
...controllers' #index actions. This way, when a change introduces an n+1 query, your test suite will blow up. Example A typical #index action looks like this. class CardsController < ApplicationController...
...introduced rules. You can use them in your .gitlab-ci.yml in your project. To limit test runs to merge requests and the master branch, you can write this: tests: script: bundle...
...exec rake tests rules: - if: '$CI_COMMIT_BRANCH == "master"' - if: '$CI_PIPELINE_SOURCE == "merge_request_event...
SMTP validation: connects to the host received from DNS and starts a test delivery to find out if the recipient mailbox actually exists tl;dr: We suggest you...
...that behave differently (like mobile vs desktop navigation menus). Since you want your integration tests to behave consistently, you want to set a specific size for your tests' browser windows...
...simply switch the driver via Capybara.current_driver = :selenium. If you use Cucumber for integration testing, wrap that into something like Before('@javascript') {...
Benefits of using device metrics are:
...e.g. to not cancel deploys by accident). Consider to set the interruptible flag for test jobs to reduce the load on your runners like in the following example .gitlab-ci.yml:
If you need a sample video with certain properties for a test you can create one using ffmpeg. You might want a very low bitrate file to speed up processing...
...in your test. (e.g. you only care about the length, then you can create a video with a very low resolution and framerate) Create a 21s video with 1fps and...