This is a sample repo that contains the getting started Jest example and outputs JUnit XML for each test using jasmine-reporters.
The problem is that Jest mocks everything by default and you have to unmock fs and path. Also you have to take care and use the 1.0.0 version of jasmine-reporters because Jest is build on Jasmine 1.3
Finally, don't forget to create the output folder before running jest and initialise jasmine-reporters with the right syntax
I've also added code coverage after an answer on StackOverflow.