"TestSinger" is the name of the distributed testing vocal used by Boxstar for DeepVocal's official release.
He was distributed with the manual for DeepVocal as an example of how to program a voicebank. His version is denoted as "TestSinger_v0.1".
He has only one recorded pitch and it is incomplete, having very few sounds. He is also known by "VB_TEST," and has an undistributed version called "TestSinger_v0.2" shown in the DeepVocal announcement video.
Vocal Sample: