def test_mass():
lam_naked = Laminate('90/90',2)
lam_core = Laminate('90/90',2,0.5)
assert(lam_naked.get_mass(1,2) == 1.0*2.0*0.125/1000*2*1.6)
assert(lam_naked.get_mass(1,2) == lam_core.get_mass(1,2))
def test_mass():
lam_naked = Laminate('90/90',2)
lam_core = Laminate('90/90',2,0.5)
assert(lam_naked.get_mass(1,2) == 1.0*2.0*0.125/1000*2*1.6)
assert(lam_naked.get_mass(1,2) == lam_core.get_mass(1,2))