integration-testing – Page 6 – Türker Yıldırım

Testing a block theme without a browser

Deep diveFebruary 16, 202210 min read

A theme with no PHP has nothing a unit test can call, and the only test is a person looking at a page.

An additive change is not breaking unless a client validates strictly

NoteNovember 28, 20212 min read

Adding a field to a response is safe by convention and unsafe in practice, because some client somewhere is validating against a schema that forbids unknown properties. Stating…

Static analysis at level 8, and the six months it took

Deep diveNovember 26, 202115 min read

1.0 in November after five years of 0.x. Level 0 passes and finds nothing anybody cared about; raising the level all at once does not work.

Testing what happens when the third party is down

Deep diveSeptember 22, 202110 min read

Every test mocks a 200 and production returned a 502 with an HTML body. The happy path is the only path with coverage.

A webhook endpoint that survives the sender

Deep diveJune 2, 202110 min read

The payment provider retried for six hours and every attempt timed out. A webhook is a notification, not a request for processing.

Two hundred integration tests that share one database

Deep diveMay 27, 202110 min read

A suite that passes alone and fails in a different order. Test 141 depends on a row test 88 created, and nobody wrote that down.

The dotnet service that finally moved behind the same gateway

Deep diveApril 27, 202110 min read

One service in a different language, with its own auth, its own log format and its own deploy. The language was the least interesting difference.

Fault injection: timeout, 500, and a slow trickle

NoteApril 21, 20211 min read

Every test mocks a fast success, and every production incident is one of the four failure modes nobody wrote a test for. The slow trickle is the one…

Contract tests against the provider’s own document

NoteApril 21, 20211 min read

A mock is your belief about the provider, and a contract test compares that belief with their published schema. Running it on a schedule rather than on every…

A WordPress plugin with a test suite that runs in CI

Deep diveMarch 18, 202110 min read

A plugin on forty sites and no test that was not a person clicking. WordPress is a global, and the matrix is the actual value.