remove ase fixtures

Author: cadenmyers13

tests/conftest.py

@@ -1,11 +1,7 @@
 import json
 from pathlib import Path
 
-import numpy as np
 import pytest
-from ase import Atoms
-
-from diffpy.structure import Atom, Lattice, Structure
 
 
 @pytest.fixture
@@ -31,45 +27,3 @@ def _load(filename):
         return "tests/testdata/" + filename
 
     return _load
-
-
-@pytest.fixture
-def build_ase_atom_object():
-    """Helper function to build an ASE.Atoms object for testing."""
-    a = 5.409
-    frac_coords = np.array(
-        [
-            [0.0, 0.0, 0.0],
-            [0.5, 0.5, 0.5],
-            [0.25, 0.25, 0.25],
-            [0.75, 0.75, 0.75],
-        ]
-    )
-    cart_coords = frac_coords * a
-    symbols = ["Zn", "Zn", "S", "S"]
-    ase_zb = Atoms(symbols=symbols, positions=cart_coords, cell=[[a, 0, 0], [0, a, 0], [0, 0, a]], pbc=True)
-    return ase_zb
-
-
-@pytest.fixture
-def build_diffpy_structure_object():
-    """Helper function to build a diffpy.structure.Structure object for
-    testing."""
-    a = 5.409
-    frac_coords = np.array(
-        [
-            [0.0, 0.0, 0.0],
-            [0.5, 0.5, 0.5],
-            [0.25, 0.25, 0.25],
-            [0.75, 0.75, 0.75],
-        ]
-    )
-    lattice = Lattice(base=[[a, 0, 0], [0, a, 0], [0, 0, a]])
-    atoms = [
-        Atom("Zn", frac_coords[0]),
-        Atom("Zn", frac_coords[1]),
-        Atom("S", frac_coords[2]),
-        Atom("S", frac_coords[3]),
-    ]
-    diffpy_zb = Structure(atoms=atoms, lattice=lattice)
-    return diffpy_zb