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testing

  • The editor changed, and so did every plugin

    Deep dive15 min read

    5.0 shipped on 6 December and the meta box is no longer the answer. What still works, what needs a flag, and what has to be rewritten.

  • PHPUnit 7 changed the assertion you use most

    Note2 min read

    7.0 landed in February and deprecated a set of assertions that appear in almost every suite, with removals following in 8 — so the warnings are a deadline…

  • React 16 rewrote how a component fails

    Deep dive10 min read

    An error in one component used to blank the page. 16 unmounts the whole tree deliberately — and gives you the mechanism to stop it.

  • A data provider turns twelve tests into one

    Note2 min read

    Twelve near-identical test methods differing only in their input is twelve places to update when the method signature changes, and a suite nobody reads. Naming the rows with…

  • Testing what the database actually does

    Deep dive10 min read

    The repository test passed against a mock and failed against MySQL. A mock asserts what you believe the database does, which is the thing in question.

  • A test that asserts on a query count

    Note2 min read

    An N+1 does not fail a test — the page renders correctly, just slowly — so the regression ships and is found by a customer three releases later.…

  • Assembling an API skeleton from packages you did not write

    Deep dive10 min read

    A micro-framework, and the six packages it takes to make it useful. What goes in the starter pack, what does not, and when micro stops paying off.

  • An integration test needs a real database or it proves nothing

    Note2 min read

    A repository test against a mocked connection asserts that the code calls the methods you expected, which is a restatement of the code rather than a check on…

  • Autowiring, and what the container is allowed to guess

    Deep dive10 min read

    services.yaml went from four hundred lines to twelve. Where the guessing stops is the part worth knowing before it stops in production.

  • A coverage report that only measures changed lines

    Note2 min read

    Total coverage moves so slowly that it tells you nothing about the change in front of you, and the question a reviewer wants answered is whether the new…