diff --git a/tests/test_coordinates.py b/tests/test_coordinates.py
new file mode 100644
index 0000000..adcfc12
--- /dev/null
+++ b/tests/test_coordinates.py
@@ -0,0 +1,41 @@
+import os
+import unittest
+from pathlib import Path
+
+import matplotlib.pyplot as plt
+from dagmc_geometry_slice_plotter import get_slice_coordinates
+
+
+class TestPlotSliceOfDagmcFile(unittest.TestCase):
+    """Tests the neutronics utilities functionality and use cases"""
+
+    def setUp(self):
+        self.h5m_filename_smaller = "tests/dagmc.h5m"
+
+    def test_create_default_plot(self):
+        """Tests returned object is a matplotlib plot"""
+
+        list_of_coords = get_slice_coordinates(
+            dagmc_file_or_trimesh_object=self.h5m_filename_smaller,
+        )
+
+        for xy in list_of_coords:
+            plt.plot(*xy, color="black", linewidth=1)
+        
+        assert isinstance(list_of_coords, list)
+
+    def test_create_default_plot_file(self):
+        """Tests output file creation"""
+
+        os.system("rm test_plot.png")
+
+        list_of_coords = get_slice_coordinates(
+            dagmc_file_or_trimesh_object=self.h5m_filename_smaller,
+        )
+        
+        for xy in list_of_coords:
+            plt.plot(*xy, color="black", linewidth=1)
+
+        
+        assert isinstance(list_of_coords, list)
+        # TODO consider making the function return lists of floats not a TrackedArray
\ No newline at end of file
diff --git a/tests/test_plot_slice_of_dagmc_file.py b/tests/test_plot_slice_of_dagmc_file.py
index 8e82753..aeb9f54 100644
--- a/tests/test_plot_slice_of_dagmc_file.py
+++ b/tests/test_plot_slice_of_dagmc_file.py
@@ -1,11 +1,9 @@
 import os
-import tarfile
 import unittest
-import urllib.request
 from pathlib import Path
 
 import matplotlib.pyplot as plt
-from dagmc_geometry_slice_plotter import plot_slice_of_dagmc_file
+from dagmc_geometry_slice_plotter import plot_slice
 
 
 class TestPlotSliceOfDagmcFile(unittest.TestCase):
@@ -17,8 +15,8 @@ def setUp(self):
     def test_create_default_plot(self):
         """Tests returned object is a matplotlib plot"""
 
-        plot = plot_slice_of_dagmc_file(
-            dagmc_filename=self.h5m_filename_smaller,
+        plot = plot_slice(
+            dagmc_file_or_trimesh_object=self.h5m_filename_smaller,
         )
 
         assert isinstance(plot, type(plt))
@@ -28,8 +26,8 @@ def test_create_default_plot_file(self):
 
         os.system("rm test_plot.png")
 
-        plot = plot_slice_of_dagmc_file(
-            dagmc_filename=self.h5m_filename_smaller,
+        plot = plot_slice(
+            dagmc_file_or_trimesh_object=self.h5m_filename_smaller,
         )
         plot.savefig("test_plot.png")