baeldung
https://www.baeldung.com/tag/mockito
https://www.baeldung.com/mockito-java-8
2023
https://habr.com/ru/companies/otus/articles/780090/
2021
https://reflectoring.io/clean-unit-tests-with-mockito/
    https://github.com/thombergs/code-examples/tree/master/mockito
https://habr.com/ru/company/skillfactory/blog/541364/
2020
https://www.javacodegeeks.com/2020/04/clean-code-from-the-trenches-writing-executable-specifications-with-junit-5-mockito-and-assertj.html
    https://github.com/sayembd/java-examples/tree/master/executable-specification-example
2019
https://habr.com/ru/post/444982/
2017
https://semaphoreci.com/community/tutorials/stubbing-and-mocking-with-mockito-2-and-junit