diff --git a/tests/unit_tests/test_tallies.py b/tests/unit_tests/test_tallies.py
index e3f9a486da..bfff741a97 100644
--- a/tests/unit_tests/test_tallies.py
+++ b/tests/unit_tests/test_tallies.py
@@ -1,7 +1,4 @@
 import numpy as np
-import pytest
-import vtk
-from os.path import exists
 
 import openmc
 
@@ -42,63 +39,3 @@ def test_xml_roundtrip(run_in_tmpdir):
     assert new_tally.triggers[0].trigger_type == tally.triggers[0].trigger_type
     assert new_tally.triggers[0].threshold == tally.triggers[0].threshold
     assert new_tally.triggers[0].scores == tally.triggers[0].scores
-
-def run_dummy_sim(tally):
-    mat = openmc.Material()
-    mat.add_nuclide('Zr90', 1.0)
-    mat.set_density('g/cm3', 1.0)
-
-    model = openmc.Model()
-    sph = openmc.Sphere(r=25.0, boundary_type='vacuum')
-    cell = openmc.Cell(fill=mat, region=-sph)
-    model.geometry = openmc.Geometry([cell])
-
-    model.settings.run_mode = 'fixed source'
-    model.settings.batches = 2
-    model.settings.particles = 50
-
-    model.tallies = openmc.Tallies([tally])
-
-    model.run()
-
-cylinder_mesh = openmc.CylindricalMesh()
-cylinder_mesh.r_grid = np.linspace(1, 2, num=30)
-cylinder_mesh.phi_grid = np.linspace(0, np.pi / 2, num=50)
-cylinder_mesh.z_grid = np.linspace(0, 1, num=30)
-
-regular_mesh = openmc.RegularMesh()
-regular_mesh.lower_left = [0, 0, 0]
-regular_mesh.upper_right = [1, 1, 1]
-regular_mesh.dimension = [10, 5, 6]
-
-rectilinear_mesh = openmc.RectilinearMesh()
-rectilinear_mesh.x_grid = np.linspace(0, 1)
-rectilinear_mesh.y_grid = np.linspace(0, 1)
-rectilinear_mesh.z_grid = np.linspace(0, 1)
-
-spherical_mesh = openmc.SphericalMesh()
-spherical_mesh.r_grid = np.linspace(1, 2)
-spherical_mesh.phi_grid = np.linspace(1, 2)
-spherical_mesh.theta_grid = np.linspace(1, 2)
-
-@pytest.mark.parametrize("mesh", [cylinder_mesh, regular_mesh, rectilinear_mesh, spherical_mesh])
-def test_write_to_vtk(mesh, tmpdir):
-    # build
-    tally = openmc.Tally()
-    tally.filters = [openmc.MeshFilter(mesh)]
-    filename = tmpdir / "out.vtk"
-    run_dummy_sim(tally)
-    # run
-    tally.write_to_vtk(filename)
-    # test
-    assert exists(filename)
-
-
-def test_write_to_vtk_raises_error_when_no_meshfilter():
-    # build
-    tally = openmc.Tally()
-
-    # test
-    expected_err_msg = "write_to_vtk requires a MeshFilter in the tally filters"
-    with pytest.raises(ValueError, match=expected_err_msg):
-        tally.write_to_vtk("out.vtk")