Hamcrest is a library for creating matchers for usage in unit tests, mocks and UI validation. This talk gives a brief introduction to using and writing Hamcrest matchers.

The topics covered:
* Basic introduction to Hamcrest
* Using Matchers in assertions
* Using Matchers with Mockito
* Writing custom matchers
* Ad-hoc matchers"

presentation:

http://www.slideshare.net/shaiyallin/hamcrest-matchers