> For the complete documentation index, see [llms.txt](https://docs.eximee.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eximee.com/documentation/documentation-en/budowanie-aplikacji/aplikacja-biznesowa/testy/najczestsze-bledy-i-dobre-praktyki-testowania.md).

# Most common mistakes and testing best practices

### Most common mistakes:

* testing too late,
* lack of business tests,
* tests only on one environment and one resolution,
* lack of integration tests.

### Good practices:

* tests on several environments,
* test scenarios ([Test checklist covering business workflows](/documentation/documentation-en/budowanie-aplikacji/aplikacja-biznesowa/testy/checklista-testowa-uwzgledniajaca-przeplywy-biznesowe.md)),
* integration tests ([Testing integration with external services](/documentation/documentation-en/budowanie-aplikacji/aplikacja-biznesowa/testy/testowanie-integracji-z-uslugami-zewnetrznymi.md)),
* tests on different devices (mobile + desktop),
* involving business stakeholders in testing.


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