joel-costigliola/assertj-core — pull request #127 by jcgay (2013-11-03 16:51:16+00:00)
Title: Add MapAssert#containsOnly and #containsExactly.

containsOnly:
I have not check that the actual map contains the same number of entries than the expected ones (even if it is the case for maps).
I feel that getting an assertion error indicating that sizes are different is a bit weird in that case, but... feedback welcome :)