pirania: make tests to not depend of each other
pirania: make tests to not depend of each other

each unit tests must be an independent unit. Following this rule allows
to run a subgroup of the tests and more important if one test fails then
the following fill fail if they are dependent and this make difficult
to find the problem.

libremesh/lime-packages,libremesh/lime-packages,libremesh/lime-packages,libremesh/lime-packages,libremesh/lime-packages,libremesh/lime-packages