ok    complementary weighted energy/gradient recovers common global energy
  ok    regional energy derivative agrees with direct-energy finite differences: 5.545e-10
  ok    scalar pyramid dissipation agrees with frozen native matrix action
  ok    positive clipped regional dissipation and complete physical-cut length
  ok    regional mechanical work closes against actual force residual
  ok    observer leaves input states and inventories unchanged

6 passed, 0 failed