Urgent help required in converting JUnit tests to use Mockito for SpringBoot

Hello

I need urgent help in converting 3 test classes that are not currently functional (due to their reliance on a method that is not working), to use Mockito like my other test class that works perfectly, which you can see as an example of what I require.

The logic for the test classes is all there already they just need to be converted to use Mockito

Shouldn't take long but I need it done immediately.

Thanks