JavaScript Tests in Node, the Browser, and CI

on YouTube ↗54m

" summary

Builds a repo with a start and done folder and runs specific examples: mocha + chai for assertions, tests that cover synchronous code, callbacks, promises and async/await, and a monkey‑patched jQuery ajax to test DOM code. Uses karma with headless Chrome and Firefox to run browser tests in CI via npm test, demonstrates debugging breakpoints, and finds/fixes a divide‑by‑zero bug. Ends with automated single‑run CI and passing cross‑browser test runs (local counts: ~9 then ~18 tests).

AI-written summary · about

" chapters (12)

1. 0:00Introduction
2. 2:32First test in Node
3. 10:09Testing async callbacks
4. 15:34Testing promises
5. 18:53Async/await tests
6. 20:17Testing edge cases
7. 26:42Tests as documentation
8. 28:06Testing in the browser
9. 34:35Debugging browser tests
10. 36:28Mocking jQuery AJAX
11. 44:35Running tests in CI
12. 52:30Summary and resources

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