When building the library & executables, warnings are treated as an error through the use of the -Werror flag in gargantext.cabal, and thus no code with warnings is accepted.

The same is not true for the tests. When building the tests, one gets a fair amount of build warnings. I don't know whether the flag -Werror should eventually be used for test build warnings too, but in any case, it would be good to try to fix them.