This book constitutes the proceedings of the First International Workshop on future Internet Testing, FITTEST 2013, held in Turkey, Istanbul, in November 2013, in conjunction with the International Conference on Testing Software and Systems (ICTSS).

The volume presents a total of 7 contributions; 5 full papers which were selected from 8 submissions, as well as a paper on the Java Unit Test Competition and a summary of the achievements of the FITTEST project.