testing – Page 31 – Türker Yıldırım

expectException replaced the annotation, with a deadline

NoteOctober 24, 20192 min read

The @expectedException annotation asserts the exception happened somewhere in the method, which passes when it is thrown by the arrangement rather than by the thing under test. Placing…

The N+1 in the ORM you cannot see from the template

Deep diveOctober 17, 201910 min read

Subquery selects in 6.0, and the aggregate that used to be a loop. Eager loading is all-or-nothing per relation, which is the problem.

Testing a hook with renderHook and nothing else

NoteSeptember 30, 20192 min read

A hook cannot be called outside a component, so testing one used to mean building a throwaway component and asserting on what it rendered — which tests the…

Laravel 6 adopted semver, and the upgrade got boring

Deep diveSeptember 25, 20199 min read

5.8 to 6.0 is a smaller change than 5.7 to 5.8 was, which is the point. What semver means for a framework, and what LTS actually promises.

Coverage of changed lines, rather than of the codebase

NoteSeptember 19, 20191 min read

Total coverage moves so slowly that it says nothing about the change in front of you, and the question a reviewer actually has is whether the new code…

Testing a hook without rendering a component

NoteMay 16, 20192 min read

A hook cannot be called outside a component, so testing one used to mean building a throwaway component and asserting on what it rendered. act is what flushes…

Symfony 4.3 shipped an HTTP client worth using

Deep diveMay 14, 201910 min read

The framework had no client of its own and now it has one with a reason to exist: responses that are lazy by default, and concurrency without a…

Site health, and the plugin that was quietly failing

Deep diveMay 9, 201910 min read

5.2 added a screen that tells you what is wrong, which is new for WordPress. What the checks actually test, and the recovery email nobody receives.

A Symfony service alias per environment, for the test double

NoteApril 29, 20192 min read

Injecting a fake payment gateway into a functional test usually means a container manipulation in the test setup, which is fragile and runs after the container is compiled.…

Jest snapshots age badly unless the diff is read

NoteApril 16, 20191 min read

A failing snapshot is regenerated with -u, and after the third time that becomes reflex — at which point the test asserts that the output equals whatever the…