def METHOD_NAME(self):
    self.potential = MTPotential(name="test")
    self.test_pool = test_datapool
    self.test_structures = []
    self.test_energies = []
    self.test_forces = []
    self.test_stresses = []
    for d in self.test_pool:
        self.test_structures.append(d["structure"])
        self.test_energies.append(d["outputs"]["energy"])
        self.test_forces.append(d["outputs"]["forces"])
        self.test_stresses.append(d["outputs"]["virial_stress"])
    self.test_struct = self.test_pool[-1]["structure"]