<@U7564EW7N> easiest solution would be to use `moc...

# test

[artem_zin]

@khanhbkqt easiest solution would be to use mockito-kotlin https://github.com/nhaarman/mockito-kotlin/blob/916f186df947d3b69b14b1f5dc286555dc625549/mockito-kotlin/src/main/kotlin/com/nhaarman/mockito_kotlin/ArgumentCaptor.kt#L32

[khanhbkqt]

Thank you for your response.
I tried that lib but I still got errors.

I decided make the parameters nullable and it works.

😞

[artem_zin]

Hm, so does it crash with NPE? Should work

[khanhbkqt]

It crashed with the parameter.
capture(captor) can not be null

[anstaendig]

But you should never make a paramter nullable so that your test runs!