text: """Test of the various bits of the parser."""
  # fchic
  import fchic
  
  
  def test_read_string() -> None:
      """Test reading a fchk file."""
      ex_full = """TD-DFT calculation                                                      
  Freq      RB3LYP                                                      6-31G(d)            
  Number of atoms                            I               12
  Info1-9                                    I   N=           9
             7           6           0           0           0         100
             6          18        -502
  Multiplicity                               I                1
  Number of electrons                        I               42
  Number of alpha electrons                  I               21
  Route                                      C   N=           7
  # Geom=AllCheck Guess=Read SCRF=Check GenChk B3LYP/6-31G(d) 
  Symm=None Freq=(NoRaman)
  Nuclear charges                            R   N=          12
    6.00000000E+00  6.00000000E+00  6.00000000E+00  6.00000000E+00  6.00000000E+00
    6.00000000E+00  1.00000000E+00  1.00000000E+00  1.00000000E+00  1.00000000E+00
    1.00000000E+00  1.00000000E+00
  """
      result = fchic.loads(ex_full)
      assert len(result["Nuclear charges"]) == 12
  
  
  def test_read_file() -> None:
      """Test reading a fchk file."""
      with open("tests/data/data-trunc.fchk", "r") as f:
          result = fchic.load(f)
  
      assert len(result["Alpha Orbital Energies"]) == 102
  
  
  def test_read_deck() -> None:
      """Test reading a single deck from a fchk string."""
      ex_full = """TD-DFT calculation                                                      
  Freq      RB3LYP                                                      6-31G(d)            
  Number of atoms                            I               12
  Info1-9                                    I   N=           9
             7           6           0           0           0         100
             6          18        -502
  Multiplicity                               I                1
  Number of electrons                        I               42
  Number of alpha electrons                  I               21
  Route                                      C   N=           7
  # Geom=AllCheck Guess=Read SCRF=Check GenChk B3LYP/6-31G(d) 
  Symm=None Freq=(NoRaman)
  Nuclear charges                            R   N=          12
    6.00000000E+00  6.00000000E+00  6.00000000E+00  6.00000000E+00  6.00000000E+00
    6.00000000E+00  1.00000000E+00  1.00000000E+00  1.00000000E+00  1.00000000E+00
    1.00000000E+00  1.00000000E+00
  """
      result = fchic.deck_loads(ex_full, "Multiplicity")
      assert result == [1]
      result = fchic.deck_loads(ex_full, "Nuclear charges")
      assert len(result) == 12
      assert result[0] == 6.0
  
  
  def test_read_deck_file() -> None:
      """Test reading a single deck from a fchk file."""
      with open("tests/data/data.fchk", "r") as f:
          result = fchic.deck_load(f, "Cartesian Force Constants")
      assert len(result) == 666  # number of the beast!
  