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Artifact for DiffStream: Differential Output Testing for Stream Processing Programs

Kallas, Konstantinos; Niksic, Filip; Stanford, Caleb; Alur, Rajeev

A differential testing library for Apache Flink programs.

The tool and the underlying methodology are described in the OOPSLA paper: DiffStream: Differential Output Testing for Stream Processing Programs

For further information and instructions, see the README after opening the VM.
 

Addendum to the README: running the VM VirtualBox (https://www.virtualbox.org/) can be used to open the VM. We are not sure why, but sometimes the machine has trouble loading and gets stuck at a black screen. If you have this problem, try powering it off and on again and also pressing the Enter key when it opens (and select Ubuntu). Once the machine loads, you can then find DiffStream in Files (~/diffstream). Open README.md , which should be identical to this file, except for missing this paragraph. Please note that many tests in this file will print out "WARNING:" statements unrelated to DiffStream, but related to certain dependencies; these can safely be ignored. Finally, for the Tutorial and Step-by-Step Guide below, we recommend using IntelliJ to open and browse source code .java files. It should be installed (search for it in the dash).
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