Code splitting is a feature of esbuild that can keep huge libraries out of the main bundle. How code splitting...
...KB or Zousan. You can even polyfill Promise with jQuery itself using 339 bytes. Testing async code We want to test this code: whenLoaded = new Promise(function(resolve, reject) { $(resolve...
...function foo() { } function callFooWhenLoaded() { whenLoaded.then(foo) } This test fails: describe('callFooWhenLoaded()', function() { it('calls foo()', function() { spyOn(window, 'foo') callFooWhenLoaded() expect(foo).toHaveBeenCalled() }) }) The test fails since we're expecting...
...has the line gem 'rails', '~>5.2'). I also experienced that doing upgrades per group (test, development) are easier to do. Thus --groups might also be helpful. $ bundle outdated --strict --groups...
...newest 5.2.6, installed 5.2.4.6) ... ===== Group "development" ===== * binding_of_caller (newest 1.0.0, installed 0.8.0) * parallel_tests (newest 3.7.3, installed 2.32.0) * query_diet (newest 0.7.0, installed 0.6.2) * spring (newest 2.1.1, installed...
...not part of the same network. Maybe you want to use your phone to test a web page, but are only in a guest WiFi. In the past, we often...
...local machine on port 3000. This can also be useful if you need to test with TLS, without having to jump through the hoops of creating some self-signed TLS...
...a MIT-based polyfill called Hyphenopoly. It applies JS-based hyphenation if a feature test shows that CSS based hyphenation is not supported for the given locale. Note that Hyphenopoly...
...can no longer search for the full word in the pasted text. Note that test browsers will also see the soft hyphens, which makes testing uncomfortable. Automatic insertion of soft...
...your config/database.yml: default: &default adapter: postgresql # ... variables: statement_timeout: 10s # or ms, min, etc Test that it works: ActiveRecord::Base.connection.execute("show statement_timeout;").map { |row| row } => [{"statement_timeout"=>"10s"}]
...by adjusting your config/database.yml: default: &default adapter: mysql2 # ... variables: max_execution_time: 10000 # ms Test that it works: begin ActiveRecord::Base.connection.execute("SELECT 1 WHERE sleep(15)") rescue ActiveRecord::StatementTimeout => e...
Unpoly 3.11.0 is a big release, shipping many features and quality-of-life improvements requested by the community. Highlights include...
.../public/assets-test/', '/tmp/', ], 2. Report all existing offenses and exclude them initially Add an RSpec test, which runs ESLint (also during a full RSpec test run), e.g. in spec/eslint_spec.rb: require 'open3...
expect(status.success?).to eq(true), failure_message end end Run the test or simply run yarn run eslint . from your console to check all files.
...authorized users only 3. Using the same storage folder for multiple Rails environments or test processes This one affects your developers. If an image with ID 4 always ends up...
...as public/system/images/4.jpg, multiple Rails environments (e.g. development and test) will randomly see and overwrite each other's files. See Always store your Paperclip attachments in a separate folder per environment...
...s unhandled prompt behavior to { default: 'ignore' } with the monkey patch below. When running tests in a real browser, we use Selenium. Each browser is controlled by a specific driver...
...receive a Selenium::WebDriver::Error::UnexpectedAlertOpenError. This is probably what you want for running tests. Different types of prompts It is possible to handle different types of prompt separately. For...
...started your screen reader you can simply navigate to whatever application you want to test and the screen reader will start to do its thing. If your screen reader isn...
...the application. If that still does not work, then the application you want to test may not be supported. Since we are usually building websites though, that should not pose...
...T06:22:17.484221 #2698200] INFO -- : [4cdad7a4-8617-4bc9-84e9-c40364eea2e4] test I, [2024-01-21T06:22:17.484221 #2698200] INFO -- : [4cdad7a4-8617-4bc9-84e9-c40364eea2e4] more
...T06:22:17.484221 #2698200] INFO -- : [6e047fb3-05df-4df7-808e-efa9fcd05f87] test I, [2024-01-21T06:22:17.484221 #2698200] INFO -- : [6e047fb3-05df-4df7-808e-efa9fcd05f87] more
The Rails sandbox In development, Rails' sandbox mode might be useful. Testing and the migration codebase The migration code should live in some subdirectory in the project...
...steps, instead of implementing some complicated Sidekiq batch logic etc. You need to write tests as you will usually have to refactor your code several times, and need to know...
...displays a beforeunload confirmation dialog, ChromeDriver will immediately close it. In consequence, any automated tests which try to interact with unload prompts will fail. This is because ChromeDriver now follows...
...that any unload prompts should be closed automatically. However, this applies only to "HTTP" test sessions, i.e. what you're using by default. The spec also defines that bi-directional...
...No power to ['creatable_cards'] The reason for this behavior is that the Capybara test server is running in another thread, and the RSpec thread can't "see" the exception...
...not write such assertions in feature specs anyway. Instead, you could: write the same test as a request spec expect what the user sees in this situation, e.g. an error...
...your timestamp holds milliseconds, they are discarded. While that is fine for humans, automated tests may fail because of that: If two tests run within the same second frame, your...
...application's response will have the same Last-Modified header value, even when both tests actually have different data. While test browsers usually clear all data (cookies, LocalStorage, etc.), at...
...cookies. These are normal, signed and encrypted cookies. By following the happy path of testing a web application, that is only the main use-case is tested as a integration...
...test and the rest as isolated (more unit like) tests, one might want to test some cookie dependent behavior as a request, helper or model spec too. Since the rspec...
...you are using database-cleaner with DatabaseCleaner.strategy = :transaction, this could lead to problems in tests. You should use DatabaseCleaner.strategy = :truncation for the tests that touch your parallelized code...
Click around a bit. Fix all errors you can find. Fix tests Fix unit tests. Fix integration tests. Upgrade to new framework defaults Flip each config in...
...change the config.load_defaults to the new Rails version. Fix deprecation warnings. Run your tests and fix all deprecation warnings. If you have added many constraints in your Gemfile to...
...complicated at first, but there are use cases where it helps to write precise tests. For example it allows to add expectations on objects that will only be created when...
Also see here for further examples. Please note: Usually it is preferrable to test behaviour, not method calls. Since the behaviour of both validators is thoroughly tested in their...
...that callback does or which type of callback it is). This is how we test whether the callback function (here it is named :my_method) is called when a new...
...that the behaviour of the callback function :my_method does not happen in the test, as if the callback function is not executed in the test. However, since the test...
...a number between 100 and 99999. Modes: Greedy, Lazy and Possessive Example string: This test is a first test string. greedy (default): * and + match as much as they can and...
...backtrack when they can't satisfy the regex, i.e. the .* in /.*test/ will first match the whole example string and then go back to match this: This test is a...
...work across all revisions that you will be bisecting. If you're referencing a test file that's under version control, make sure you always run the correct test.There are...
CarrierWave comes with some RSpec matchers which will make testing more comfortable. Let's say you have an Uploader like this: class MyUploader < CarrierWave::Uploader::Base include CarrierWave::MiniMagick
...a class Movie with an attribute poster. In your spec file, you can add tests to check the dimensions of the several versions by writing RSpec.describe Movie, type: :model do...