A walkthrough of end-to-end testing a web app with Cypress, which I demonstrate against a small Express app with customers and orders. I cover installing Cypress, writing tests for navigation, deletions and cascading deletes, element selection with data-test attributes, custom assertions using invoke and then, running tests in the browser, and handling state resets between runs...
A look at Node’s built-in test runner from my perspective as a long-time Mocha and Chai user, showing how to write and run basic tests with node:test and node:assert. Coming from Mocha requires few changes, though test files need to live in a test directory to be picked up. I weigh the convenience of a bundled runner against lock-in to a particular runtime...
I walk through testing a Node/Express API with mocha, chai, and supertest, using a simple maths-endpoint app as the example. I cover installing the tools as dev dependencies, exporting the app so tests can control it, writing test suites and cases, running tests via an npm script, and the role each tool plays. I had been using Bruno for lightweight endpoint checks and found the full setup trivial to configure...
After ChatGPT flagged that mdserver might allow path traversal attacks, I used Bruno, an under-development Postman/Insomnia alternative, to check whether Express was sanitizing URLs properly. ChatGPT generated pass and fail URL examples, I wrote asserts for each in Bruno, and the whole collection can be run at once. A side benefit is that requests are stored as version-controllable text committed alongside the rest of the code...
A walkthrough of adding unit tests to an existing Swift project in Xcode, using my CodeTrimmer macOS utility as the example. I cover adding a unit testing target, writing XCTest functions for the stripSpaces() method, and running the tests to see the results...
