Apa wae anti-pattern testing sing kudu dihindari?

Question

Accepted Answer

Sanajan kanthi maksud sing apik, tim kasring kesusu ing **anti-pattern testing** — praktik sing ndadekake test rapuh, alon, ora dipercaya, utawa bernilai murah. Ngenali lan nghindari dheweke penting kanggo njaga suite test sing sehat lan bernilai.

## Anti-pattern kualitas test

```text
✗ TESTING IMPLEMENTATION DETAILS → tests coupled to internals → break on every refactor
  (brittle) → test BEHAVIOR/outcomes instead
✗ FLAKY tests → intermittent failures erode trust → people ignore failures (real ones too)
✗ OVER-MOCKING → mocking everything → tests verify mock interactions, not real behavior;
  brittle and give false confidence
✗ Tests with NO meaningful assertions → run code but verify nothing (false coverage)
✗ GIANT tests checking many things → unclear what failed; hard to maintain
```

## Anti-pattern struktural lan strategis

```text
✗ ICE CREAM CONE → mostly slow E2E/manual, few unit tests → slow, brittle, expensive suite
✗ INTERDEPENDENT tests / shared mutable state → order-dependent, flaky, fragile
✗ Testing the FRAMEWORK / trivial code → low value; testing what doesn't need testing
✗ Chasing COVERAGE numbers → low-value tests written just to hit a percentage
✗ Slow tests → discourage running them → defeats fast-feedback value
```

## Anti-pattern proses

```text
✗ Writing tests as an afterthought (or never) → poor coverage, untestable design
✗ Ignoring failing/flaky tests → the suite becomes untrusted/useless
✗ Not maintaining tests (test code rot) → tests are code; they need care
→ Recognize these and steer toward: behavior-focused, isolated, fast, meaningful,
  pyramid-shaped, maintained tests.
```

## Mengapa iki penting

Gawe ngerti anti-pattern testing iku pengetahuan tingkat senior sing berharga amarga **ngenali lan nghindari praktik testing sing ala iku penting kanggo njaga suite test sing sehat lan bernilai**, lan anti-pattern iki umum sanajan kanthi maksud sing apik, mula iku pengetahuan praktis sing penting.

Test sing kesusu ing anti-pattern dadi tanggung jawab tinimbang aset, mula ngerti apa sing kudu dihindari sama penting karo ngerti apa sing kudu gawe.

Gawe ngerti **anti-pattern kualitas test** — nyoba implementation details (nyebabake test rapuh sing pecah pas refactoring), **test flaky** (ngrusak kapercayaan supaya kegagalan diibarate), **over-mocking** (verifikasi interaksi mock tinimbang perilaku nyata, menehi kepercayaan sing salah), test tanpa assertion sing bermakna (coverage palsu), lan test raksasa sing ora fokus — membantu ngenali lan nghindari praktik sing ndadekake test siji-siji bernilai murah utawa kontraproduktif.

Gawe ngerti **anti-pattern struktural lan strategis** — **ice cream cone** (piramida terbalik: biasane test E2E/manual alon, ngasilke suite alon, rapuh, lan mahal), test sing saling gantung, nyoba kode trivial utawa framework, **kejar angka coverage** (nulis test bernilai murah kanggo nekan target), lan test alon (nyulangi ndalan) — membantu hindari suite test sing kurang struktur lan ora efisien.

Gawe ngerti **anti-pattern proses** — nulis test minangka afterthought (utawa ora tau), **ibarate test kegagalan/flaky** (ndadekake suite ora dipercaya lan sia-sia), lan ora njaga kode test (mbiarke rot) — membantu njaga proses testing sing sehat.

Ngenali anti-pattern iki lan kemudi menyang lawane (test sing fokus perilaku, terisolasi, cepet, bermakna, bentuk piramida, dijaga) iku sing njaga suite test tetep bernilai liwat waktu.

Dhéwé testing anti-pattern iku umum (sanajan kanthi maksud sing apik) lan dheweke ubah test saka aset dadi tanggung jawab (rapuh, flaky, alon, ora dipercaya, bernilai murah), lan amarga ngenali lan nghindari dheweke penting kanggo njaga suite test sing sehat lan bernilai, gawe ngerti anti-pattern testing iku pengetahuan tingkat senior sing berharga — penting kanggo njaga testing efektif, nggambarke pangalaman ngenali lan nghindari kesalahan umum sing ngrusak suite test, lan kompetensi kunci kanggo senior engineer sing dumadi testing practices lan njaga kesehatan suite test liwat waktu.