/* Code Comments */14 posts tagged with "jest"
jest: typeahead hints
2021-03-05
|~3 min read
|418 words
One of those slightly annoying features of Jest’s watch mode is the regex pattern matching. It’s wonderful in how powerful it is, but it…
failing commits on failing tests
2021-03-05
|~2 min read
|365 words
CI/CD pipelines are designed to ensure that no broken code reaches the main branch.However, running all of the tests and compiling a project…
jest: extending jest's assertion library
2021-03-05
|~5 min read
|815 words
Jest has a robust assertion library, but it’s also a general purpose tool. This can lead to some awkward tests, or imperative at least…
jest: how to configure jest for testing javascript applications
2021-03-05
|~1 min read
|24 words
— how to handle static assets — how to extend Jest’s native assertion library — how to configure a watch plugin
jest: handling static assets with mocks
2021-03-05
|~2 min read
|354 words
Webpack, because of its deep integration into an application, can create additional complexity when it comes to testing. Fortunately, Jest…
test object factory
2021-03-05
|~5 min read
|923 words
Continuing my foray into becoming a better tester, today, I’m exploring the Test Object Factory. This pattern shares some similarities with…
testing: mocking strategies
2021-03-05
|~10 min read
|1834 words
When it comes to testing our code, it may be desireable to avoid following the normal code path all the way. Some examples of calls that we…
testing: using test factories to increase confidence
2021-03-05
|~5 min read
|975 words
How can you gain greater confidence that what you’re testing is what you intend? One solution is to automate away a lot of the noise with a…
let's build a testing framework!
2021-03-05
|~6 min read
|1036 words
What is a test? How do testing frameworks work? This post explores how different of a framework fit together and why they’re relevant. In…
jest: mocking node's fs
2021-03-05
|~5 min read
|993 words
I hit some road blocks with recently which are motivating a refactoring with an eye toward reliability through testing.1 Since ’s primary…
mocks and spies: inspecting console messages with jest
2021-03-05
|~3 min read
|466 words
I was working recently on a project where a function would print to the console when it was executed. I was practicing writing more tests…
mocks and spies: inspecting console messages with jest
2021-03-05
|~3 min read
|466 words
I was working recently on a project where a function would print to the console when it was executed. I was practicing writing more tests…
error handling: jest with babel
2021-03-05
|~2 min read
|388 words
Trying to run tests with Jest, I got the following error: Looking at the stack trace (in full at the end of this post), however, there were…
error handling: jest with babel
2021-03-05
|~2 min read
|388 words
Trying to run tests with Jest, I got the following error: Looking at the stack trace (in full at the end of this post), however, there were…