Formal:
* Zdałem/zdałam test. (I passed the test) - This is the most common and direct translation.
* Uzyskałem/uzyskałam pozytywny wynik testu. (I obtained a positive result on the test) - This is a more formal way to say it, emphasizing the positive outcome.
Informal:
* Przeszedłem/przeszłam test. (I went through the test) - This is a more casual way to say it, emphasizing the completion of the test.
* Zdałem/zdałam! (I passed!) - This is a short and celebratory way to say it.
Using the word "egzamin":
* Zdałem/zdałam egzamin. (I passed the exam) - This is used when the test is a more formal exam, like a school exam.
The best way to say it depends on the specific situation and your relationship with the person you are speaking to.