related work on test amplification

[monperrus]

In this issue, we can post recent related work

[monperrus]

ConTesa: Directed Test Suite Augmentation for Concurrent Software
http://ieeexplore.ieee.org/document/8423082

[mabdi]

We've submitted this work to EMSE:
Small-Amp: Test Amplification in a Dynamically Typed Language
Preprint: https://arxiv.org/abs/2108.05663
(Any feedback is greatly appreciated)