...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...
...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
...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...
...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...
...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...
...to use Edge Rider for new projects, which is being actively maintained and has test coverage for all versions of Rails...
...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...
...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:
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...
...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...
...use feature detection or a polyfill when using this API, to avoid unforeseen results. // Test via a getter in the options object to see if the passive property is accessed...
...var supportsPassive = false; try { var opts = Object.defineProperty({}, 'passive', { get: function() { supportsPassive = true; } }); window.addEventListener("testPassive", null, opts); window.removeEventListener("testPassive", null, opts); } catch (e) {} // Use our detect's results. passive applied if...
In our monitoring, RabbitMQ queues like aliveness-test may show up as unresponsive, with a ping timeout after 10 seconds. The logfile will generally read like this: operation queue.delete caused...
...to perform operation on queue 'example' in vhost '/' due to timeout For the aliveness-test queue, you can can use this command to delete it: rabbitmqctl eval 'rabbit_amqqueue:internal...
...Setup job that will only run for Rails environment "staging" end end You may test the cron output like this (no changes will be made to your crontab):
...task that will only run for Capistrano stage "customer1-staging" end end You may test the cron output like this (no changes will be made to your crontab): STAGE=customer1...
Delete the static error pages 404.html, 422.html and 500.html from public/. Add some tests, for example a cucumber feature: @allow-rescue Scenario: 404 page When I go to the...
...current JavaScript VM: window.addEventListener('error', function(event) { console.log("Got an uncaught error: ", event.error) }) Tip Testing tools like Jasmine might also listen to the error event and fail your test if...
We are using Spring in our tests for sequential test execution but not for parallel test execution. And Rails requires you to set the config.cache_classes = false if you are...
...using Spring in tests. With our setup, this would raise the following error in cucumber-rails for parallel test executions due to some legacy database cleaner issue. WARNING: You have...
...callback passed to promiseState will be called asynchronously in the next microtask. Usage example: Tests Note Since this card was written Jasmine has implemented asynchronous matchers that let you expect...
...sufficient to use the then() function. Where promiseState() becomes useful is when writing unit tests for a function that returns a promise. Let's say we write a promise-based...