We use foreman to start all necessary processes for an application, which are declared in a Procfile. This is very convenient, but the outputs of all processes get merged together...
...Especially while debugging you might not want other processes to flood your screen with their log messages. The following setup allows you to start Terminator in a split view with...
Ask the admins to turn on SSL (they will set an HSTS header for SSL-only sites) Make cookies secure and http_only Never hard-code the http protocol...
...into URLs that point to your application, which makes you vulnerable to SSL-stripping. When linking to internal resources, just use the path without protocol or URL When linking to...
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...
...ffmpeg -t 21 -s 10x10 -r 1 -f rawvideo -pix_fmt rgb24 -i /dev/zero sample_21_seconds.mp4 Option Explanation -t 21 set the length to 21s -s 10x10
...how locales work. This is especially relevant when using PostgreSQL databases (of any version), since those depend on the locales functionality provided by glibc as well. It's recommended to...
...likely not affected. How to fix the problems Postgres documentation recommends to recreate indexes involving string-like data types: All indexes involving columns of type text, varchar, char, and citext...
Understand how nested attributes appear in the params. See how the Rails form helpers encode the names of nested inputs. Understand how the record and all of its nested...
...attributes are saved in a transaction. That means the entire structure is saved or not. Resources Rails Guide: Nested forms Nested Forms in Rails Popular mistakes when using nested forms...
...this.boundStopLock = this.stopLock.bind(this) // Stream rendering document.addEventListener("turbo:before-stream-render", this.boundLockTurboStreamRendering) // Form submission document.addEventListener("turbo:submit-start", this.boundStartLock) document.addEventListener("turbo:submit-end", this.boundStopLock) // Network activity document.addEventListener("turbo:before-fetch-request...
...render", this.boundStopLock) } disconnect() { // Stream rendering document.removeEventListener("turbo:before-stream-render", this.boundLockTurboStreamRendering) // Form submission document.removeEventListener("turbo:submit-start", this.boundStartLock) document.removeEventListener("turbo:submit-end", this.boundStopLock) // Network activity document.removeEventListener("turbo:before-fetch-request...
When you have a Cucumber step like Then I should see "Did you see those \"quotation marks\" over there?" you'll run into trouble. Cucumber won't take your...
...escaped quotation marks. Workarounds One workaround is to write the step as regex (since there is a step taking a regex): Then I should see /Did you see those "quotation...
Option 0: Download from the official page (preferred) Open https://googlechromelabs.github.io/chrome-for-testing/ In Section "Stable" > chromedriver / linux64 > Download ZIP from URL Take the chromedriver binary from the ZIP file and...
...your path like this: echo "export PATH=$PATH:$HOME/bin" >> $HOME/.bash_profile Option 2: Use apt source Warning Wo no longer recommend this option. After a chrome update, the chromedriver package sometimes...
Normally, Rails handles encryption and signing of cookies, and you don't have to deal with the matter. Should you need to decrypt a session cookie manually: here is how...
...Obviously, you can only decrypt a session cookie from within the corresponding Rails application. Only the Rails application that encrypted a cookie has the secrets to decrypt it.
geordi cucumber path/to/features -r2 Background and how to rerun manually Cucumber will save a file tmp/parallel_cucumber_failures.log containing the filenames and line number of the failed scenarios after a...
...full test run. Normally you can say cucumber -p rerun (rerun is a profile defined by default in config/cucumber.yml) to rerun all failed scenarios. Here are a few alternative ways...
This note shows how to merge an ugly feature branch with multiple dirty WIP commits back into the master as one pretty commit. Squashing commits with git rebase
...here will destroy commit history and can go wrong. For this reason, do the squashing on a separate branch: git checkout -b squashed_feature This way, if you screw up...
When your site is on HTTPS and you are linking or redirecting to a HTTP site, the browser will not send a referrer. This means the target site will see...
Clients SHOULD NOT include a Referer header field in a (non-secure) HTTP request if the referring page was transferred with a secure protocol.
Occasionally you need to do something directly on the server -- like having all records recalculate something that cannot be done in a migration because it takes a long time.
...s say you do something like this: Project.all.each(&:recalculate_statistics!) Even though you may have been successful with this on your development machine or the staging server, keep in mind...
...text right next to the code: notes for other developers, and for your future self. You can imagine comments as post-its (or sometimes multi-sheet letters ...) on real-world...
...objects like cupboards, light switches etc. As always, with power comes responsibility. Code comments can go wrong in many ways: they may become outdated, silently move away from the code...
...progress for the Rails 7 version Documentation for rspec-core Using metadata attributes to write spec-type specific before blocks Shared examples and contexts in RSpec Testing shared traits or...
Sharing test setup can lead to DRY, but tightly coupled test code. Read Prefer self-contained examples for an argument for isolating tests instead, even if it means some...
Line-height and vertical-align are simple CSS properties. So simple that most of us are convinced to fully understand how they work and how to use them. But it...
...less-known feature of CSS: inline formatting context. For example, line-height can be set as a length or a unitless value 1, but the default is normal. OK, but...
expect(page).to have_field('Username') { |field| field[:class].blank? } Limitations Using execute_script, evaluate_script or evaluate_async_script within a filter block will crash with a timeout...
...Selenium::WebDriver::Error::ScriptTimeoutError Exception: script timeout This is due to Capybara using a zero timeout while calling the filter block. A workaround is to temporarily set a different timeout...
You can execute systemctl --user --failed to check for failed systemd user units. But let's face it: It's inconvenient and you'll probably miss failures. Better use desktop...
...pipewire.socket ConditionUser=!root [Service] LockPersonality=yes MemoryDenyWriteExecute=yes NoNewPrivileges=yes RestrictNamespaces=yes SystemCallArchitectures=native SystemCallFilter=@system-service Type=simple ExecStart=/usr/bin/pipewire Restart=on-failure Slice=session.slice [Install] Also=pipewire.socket
options.add_option(:web_socket_url, true) options.add_option(:page_load_strategy, 'none') # required for selenium-webdriver 4.27+ end Capybara::Selenium::Driver.new(app, browser: :chrome, options: options) In combination with...
...stay open until handled. Note Setting the unhandled prompt to a hash is supported since selenium-webdriver 4.36 Note that you also need to set the :page_load_strategy to...
...moving a file, your imports also need to change. To get around this, esbuild support a mechanism first introduced in TypeScript called "path aliases". It works like this:
...if you do use TypeScript): { "compilerOptions": { "baseUrl": "./app/assets", "paths": { "@/*": ["js/*"], "@images/*": ["images/*"], "@css/*": ["css/*"], "@spec/*": ["../../spec/js/*"] } }, "include": [] } (The include: [] only makes sense if you do not use Typescript. If you...
...any of the gems that GEM depends on. For the example above you would say: bundle update cucumber-rails --conservative If Bundler cannot update due to transitive dependencies, check if...
...for old versions of bundler The options below might be relevant if you're stuck with Bundler < 1.14: Option 1 This will work if all dependencies for the update are...
The attached patch lets you find a record by a string or number in any column: User.find_by_anything('carla') User.find_by_anything('email@domain.de') User.find_by_anything(10023)
User.find_by_anything!('carla') Boolean and binary columns are excluded from the search because that would be crazy. I recommend copying the attachment to features/support/find_by_anything.rb, since it is...
}) Example case I had an Unpoly compiler for a tab navigation, which sets an -active class per default to the first tab link and removes it from all...
...other tab links. If another tab link is clicked, the -active class switches to the clicked link. In a Jasmine spec I wanted to test this behaviour. Unpoly's up.hello...
TL;DR: Rails ships two methods to convert strings to constants, constantize and safe_constantize. Neither is safe for untrusted user input. Before you call either method you must validate...
...the input string against an allowlist. The only difference between the two methods is that unresolvable constants raise an error with constantize, but return nil with safe_constantize. If you...