...a commit between the given good and bad commits. You could then run a test (*) revealing the problem or inspect the issue manually. Keep in mind that you may need...
...you are done bisecting you can go back with git bisect reset (*) Such a test would need to live outside the repository as you are constantly switching your working directory...
...single feature/spec: Just paste the reference into your terminal (you need to "unmark" the test directories "as test sources root" to get a path relative to the project root).
In tests, it is sometimes useful to create records with specific ids. On PostgreSQL this can cause problems: Usually, PostgreSQL uses an "autoincrement" sequences to provide sequential ids for new...
...cause an SQL error 'duplicate key value violates unique constraint "records_pkey"' Workaround In tests, one workaround would be to simply initialize all sequences with a large value, so that...
If you need to test interaction with a remote API, check out the VCR gem as an alternative to Webmock or stubbing hell. The idea behind VCR is that is...
...HTTP requests and logs the interaction in a .yml file. When you run the test again, requests and responses are stubbed from the log and the test can run offline...
...supports a few helpers for development. In case you notice errors in your Cucumber tests, you might want to use one of them to better understand the underlying background of...
...s README, but is duplicated to this card to allow repeating. Then console Pauses test execution and opens an IRB shell with current context. Does not halt the application-under...
...at least 2.2.0. Set a cookie with options secure: true, samesite: 'strict|lax|none'. Testing in advance To test the effect of the new Chrome behavior on your site or...
...geordi png-optimize Carrierwave Go through our Carrierwave checklist if used. Maintenance Integrate and test the capistrano maintenance task. Accessibility Decide what effort you want to put in improving accessibility...
...If you are unsure if you applied this technique correctly, here is a simple test: Delete all files from app/models/* and run your migration. If it completes successfully, you are...
...follow this workflow. Finishing a feature When you're done with your feature and tests are green, and your changes pass our merge request checklist: Within your feature branch, merge...
...Our first implementation might look like this: def group(content) " #{content} " end We run tests and realize that our helper escapes too much. Content appears like this:
...is very important to double-check results to be avoid unexpected consequences. Can I Test Things Locally With a Database Dump? Unfortunately not. Restoring from a logical database backup, i.e...
...an SQL dump, will not reproduce the error and is not suitable for testing changes, since importing dumps will re-create indexes in the first place.
...setInterval and setTimeout calls from tabs that are currently in the background. You can test it yourself by running the test below and change to a different...
...tab during its runtime. The expected runtime drastically increases in Chrome, Firefox and Safari: https://testbed.nicon.nl/timeouttest/ See also: Stop animations and network polling when the document tab isn't...
...See our libvips with CarrierWave card for: Converting colors to sRGB Stripping color profiles Testing ImageMagick provides a compare utility which can be used to measure color differences between two...
...compare writes it's result to STDERR. A lower score is better, I'd test for a threshold like <= 5. There are different comparison metrics available Link to the profile...
When you find similar groups of expect calls in your tests, you can improve readability by extracting the group into its own matcher. RSpec makes this easy by allowing matchers...
...to call other matchers. Example The following test checks that two variables foo and bar (1) have no lowercase characters and (2) end with an exclamation mark: expect(foo).to...
...k] + (f * (values_sorted[k + 1] - values_sorted[k])) end benchmarks = [ %(User.where('name ILIKE ?', '%test%').first), %(User.where('email ILIKE ?', '%test%').first), ] measurements = benchmarks.index_with do |_benchmark| [] end benchmarks.each do |benchmark...
Sidekiq.configure_client do |config| if ENV['RAILS_ENV'] == 'development' || ENV['RAILS_ENV'] == 'test' stdout_logger = ActiveSupport::Logger.new(STDOUT) file_logger = ActiveSupport::Logger.new("log/sidekiq_#{ENV['RAILS_ENV']}.log")
end Sidekiq.configure_server do |config| if ENV['RAILS_ENV'] == 'development' || ENV['RAILS_ENV'] == 'test' stdout_logger = ActiveSupport::Logger.new(STDOUT) file_logger = ActiveSupport::Logger.new("log/sidekiq_#{ENV['RAILS_ENV']}.log")
matches. Example Let the following setup: # my_model_spec.rb describe MyModel do it 'perfoms a test' it_behaves_like 'something shared' end # something_shared.rb shared_examples_for 'something shared' do
...MyModel is spec/models/my_model_spec.rb[1]. The ID of the ExampleGroup created by it 'performs a test' is spec/models/my_model_spec.rb[1:1]. The ID of the ExampleGroup created by it_behaves_like 'something...
...get Jasmine specs running in a Rails project using Webpacker, with the browser based test runner. Should be easily adaptable to a pure Webpack setup. Step 1: Install Jasmine
...Javascript, we will create two additional packs. The first only contains Jasmine and the test runner. The second will contain our normal application code and the specs themselves.
...it becomes more difficult to optimize this query when joining other records (for my tests PostgreSQL was not able to use the GIN index on the joined table within a...
...only see their own user as an option in the same . Remember to add tests for your authorization code. Tip If you have existing dropdowns that accept a restrict list...
Discussion Discuss with your mentor: We don't want to duplicate our integration tests for every screen and user role. Why? Where to put authorization scenarios? In an authorization.feature...
class Client class_attribute :config def self.configure self.config ||= Configuration.new yield(config) end def test uri = URI.parse(FooClient::Client.config.endpoint) Net::HTTP.get_response(uri) end end end module FooClient class Configuration...
...serve requests with the HOST header hacker.xyz You need to take care in your tests, that you reset ActionMailer::Base.default_url_options after e.g. request specs, e.g. spec/support/action_mailer.rb: RSpec.configure do...
Whenever you have to deal with randomness in a jasmine test there are some spy strategies to help you out! Let's say we have a method Random.shuffle(array) to...
...shuffles the array', () => { spyOn(Random, 'shuffle').and.returnValue([3, 2, 1]) array = [1, 2, 3] testedClass = new testedClass(array) expect(Random.shuffle).toHaveBeenCalled() expect(testedClass.array).toEqual([3, 2, 1]) })
...format before you can use it for plotting: Numo.gnuplot do .. # more plot settings plot "'test.csv'", u: "(hist($#{column_to_plot},width)):(1.0)" s: true, f: true, ...
output "hist.jpg" end
...write any array files into a temporary csv file before passing it Numo.gnuplot: CSV.open('test.csv', 'w') do |csv| random_values.zip(additional_values, absolute_values, other_values).each_with_index do |zipped...