[Task] Uncomment and fix unit tests

[taorepoara]

What should be done

Many unit tests have been commented probably because they where failing.

A first step would be to uncomment them all and skip them (so they appear in the test results.

Next is to fix them all.

Technical recommandation

Any technical recommandation or specific warning about this task (if needed)

• Security issue to be warned of
• Complexity issue
• Will it scale ?

Ecological concerns

What can be done to improve the ecological impact of this task ?

• Can we minimize the data send to the network ?
• Are data stored ? Can we minimize the amount of stored data ?
• Is it CPU-intensive ? Can we reduce the CPU charge ?
• Is it RAM-intensive ? Can we reduce the RAM load ?

Is this task linked with any other ?