Testing frameworks: Is Google Truth a substitute for JUnit? How to I write test methods and test suites?

I came across Google Truth http://ift.tt/29g19lW and thought to try it out. I read the information on that site but still have a basic question.

Is Truth a substitute for JUnit? How should I write the @test methods and test suites the way I write in JUnit and automate the test execution say through Jenkins? Or is it that Truth is just about making your assertion code beautiful and everything else stays the same?

Does Truth still needs help of JUnit framework (or something like JUnit)?

Thanks!