Broken QuestionParsing-related tests

[progval]

The three tests related to QuestingParsing-Grammatical are broken: https://travis-ci.org/ProjetPP/integration/builds/120051789#L1898

I can't find where the issue is; all I know is that the core does not fetch any result from QP-Grammatical (either because QP-G replies nothing, or because it crashes)

[Ezibenroc]

Can you reproduce this ? Or is it only broken on Travis?