This is the 6191st most frequent Russian word.
тестировании
Testing.
Here, 'тестировании' is also in the prepositional case, emphasizing the method by which the verification occurs.
Знания команды были проверены в тестировании.
The team's knowledge was verified through testing.
In this sentence, 'тестировании' is used as a noun in the prepositional case, referring to the ongoing process of testing.
Я участвую в тестировании нового программного обеспечения.
I am participating in the testing of new software.
In this usage, 'тестирования' appears as a noun in the genitive case, indicating the completion of the testing process as a temporal reference.