text: import pytest
  
  import espaloma as esp
  
  
  def test_smirnoff_esol_first():
      ff = esp.graphs.legacy_force_field.LegacyForceField("smirnoff99Frosst")
      g = esp.data.esol(first=1)[0]
      g = ff.parametrize(g)
  
  
  def test_smirnoff_strange_mol():
      ff = esp.graphs.legacy_force_field.LegacyForceField("smirnoff99Frosst")
      g = esp.Graph(
          "[H]c1c(nc(n(=O)c1N([H])[H])N([H])[H])N2C(C(C(C(C2([H])[H])([H])[H])([H])[H])([H])[H])([H])[H]"
      )
      g = ff.parametrize(g)
  
  
  def test_multi_typing():
      ff = esp.graphs.legacy_force_field.LegacyForceField("smirnoff99Frosst")
      g = esp.data.esol(first=1)[0]
      g = ff.multi_typing(g)
  