How to write a file preprocessor for bundling Cypress specs
My testimony in support of retrofitting the existing buildings with all electric infrastructure instead of fossil fuels.
How to visually compare a rendered Canvas with retry-ability
A collection of videos about writing cypress-recurse NPM module
How to confirm the browser sends POST request when you use anchor ping attribute.
How to test a site deployed to Netlify by starting a GitHub Actions workflow.
How to set up local HTML presentations using Reveal.js engine bundled by Vite.js
Prevent Test Runner hanging when the application uses confirmation dialog in window.onbeforeunload callback
Running the same Cypress tests with different browser time zones in parallel
How to run different GitHub workflows depending on the changed files
Test a site after deploying it to Netlify preview or production environment.
How to check if the form is valid before submitting it.
Avoid clashing global types between Cypress and Jest by using local-cypress library.
Resolving a user issue through the most appropriate series of actions
An example of splitting a GitHub Actions testing workflow into several jobs.
An investigation into a hanging application that required geolocation access during Cypress test.
How to test, transpile, and publish an NPM module with a custom Cypress command.
How to make sure the CI machines are not IO-limited when running Cypress tests in parallel on CircleCI machines
Because negative assertions can pass for the wrong reason.
How to cover the entire backend code using Cypress API tests.
A tutorial explaining how to write a custom Cypress command with retry-ability.
Split the long-running spec into smaller specs in a subfolder.
A few common cy.intercept gotchas and how to avoid them
How to see the individual command timings.
The planet is burning. What we must do immediately.
How to step through the visibility code to determine why Cypress thinks an element is invisible during the test
Renovate dependency upgrades become even better by showing the upgrade stats collected across all projects.
Repeat the same test and the entire project to find flakey tests
Do not use lax restore cache keys or your Cypress cache will blow up in size
When the failing test is the passing test
Testimony in favor of adopting strict Net Zero building stretch code in Massachusetts
How to deploy versioned documentation site to GitHub Pages using GitHub Actions
How to apply to a job in a way to make the hiring manager say "Yes" to your application.
Do not use lax restore cache keys or your cache will roll over with unused dependencies
Example guide to writing a simple Webpack loader
How to write effective React tests using Cypress
How to almost test Content-Security-Policy violations in your site using Cypress
How to load and test WASM code using Webpack and test it using Cypress
How to release a well-tested library that never breaks the users' projects
How to access the XState state machine from Cypress test to verify the current context, observe events, and drive the app via actions
The new command cy.route2 is everything one needs to spy and stub network requests from the application under test
How to develop software without wasting time planning or ignoring important parts of the project
How to spy on and stub GraphQL calls from the application using Cypress and its new cy.route2 API
How to derive multiple benefits from writing software.
How to wrap Cypress commands using its NPM module API to customize the test runner behavior.
How to test individual React components the same way as end-to-end web applications.
Generate web application tutorials using real Cypress tests.
Looking at my personal daily task logs from the past 18 months
How we wasted three days due to missing "await"
Run end-to-end Cypress tests against Vercel preview deploys using GitHub Actions
Moving from Jest + RTL to Cypress + @testing-library/cypress for testing React components
Answers to three common questions from people skeptical about Cypress.
My notes on testifying in person or in writing during a hearing.
Introducing cypress-vue-unit-test for better Vue component testing experience inside Cypress test runner.
Do not pay people to destroy the planet.
Comparing React components pixel by pixel to catch style problems
How to refactor loading JSON fixtures for simplicity
Moving from end-to-end to component and unit tests
A common mistake when using beforeEach hooks in Cypress specs
Use tests and automatic dependency updates to keep examples up to date with the latest versions of the relevant library. Make it visible with dependency version badges.
How to stub named imports during unit tests
How I see end-to-end and component and unit tests working together
How to prune unused Docker images, delete large node_modules, and clean old Cypress binaries
Configure Renovate too only check updates for some dependencies and not all of them.
Code samples of my common continuous integration configuration files for GitHub Actions, CircleCI
How to verify Sentry call happens on an unhandled exception
How to scrape static site from GitHub Action using Algolia.
How to test static sites three times before and after deployment to GitHub pages.
90-second pitch for CitizenClimateLobby I gave at PKG meeting at MIT.
How to bundle and transpile your NPM module to run on older Node versions.
How to never have a wrong link in your README and other Markdown files.
We have plenty of natural offshore wind and solar resources to satisfy all our electricity needs many times over. To say that we can’t switch to all green, all renewable, all safe electricity 50 years after we went to the Moon is a lie, and not a very convincing lie. Ban gas infrastructure now.
An email I have sent to my friends at the end of 2019.
I have painted the roof of my house white to keep cool in the summer
How to pass passwords and tokens during Cypress tests to avoid accidentally revealing them in screenshots, videos and logs
Step by step guide to using Sinon.js mocking library with Mocha.js test runner
Collection of my talks about Cypress.io from recent conferences with videos and direct links to slides.
Run Prettier inside a GitHub Action to fix code formatting, quick NPM install with caching inside actions, running end-to-end Cypress tests using custom action.
A way to test Cypress examples in Markdown files to guarantee their correctness.
Cambridge, MA council candidates who put climate as the number one priority issue.
How to bypass user interface to directly dispatch actions to Angular 8 application from Cypress end-to-end tests.
How to use Percy.io visual diffing service to prevent regressions in terminal programs.
How to test your site in a child window rather than iframe when using Cypress.
How to patch fix installed NPM module to avoid waiting for an official bug fix.
How to run accessability contrast test against a page to prevent low-contrast problem.
How to filter the collected Mocha unit tests before running them.
How to detect from Cypress test when a page reloads using object property assertions.
The planet is burning. What we must do immediately.
Electrical bicycle is a superb mobility device.
How to bypass user interface when writing end-to-end tests.
How to perform end-to-end API testing using Cypress test runner and take advantage of server logs.
How to capture console.log, console.error and even DEBUG=... logs.
How to test web application running on localhost using Cypress running inside a Docker container
How to validate SSR page using Cypress.io test runner
How to achieve 100% code coverage by combining end-to-end and unit tests without losing your sanity.
How to instrument code on the fly using Parcel bundler and collect code coverage during end-to-end tests.
How to configure TypeScript and Webpack path aliases to load application code from Cypress tests
How to instrument application code and collect code coverage during Cypress E2E tests.
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