[TST] Bump pytest>=8 and resolve deprecations

pyproject.toml

@@ -39,7 +39,7 @@ dependencies = [
 
 [project.optional-dependencies]
 extras = ["pandas>1", "scipy"]
-test = ["pytest>=6", "pytest-cov", "coverage"]
+test = ["pytest>=8", "pytest-cov", "coverage"]
 ci = ["jupyter"]
 
 [tool.setuptools]

src/serpentTools/detectors.py

@@ -1359,7 +1359,7 @@ def hexPlot(self,
             if val <= thresh:
                 continue
             values.append(val)
-            h = RegularPolygon(xy, 6, radius, rotation, **kwargs)
+            h = RegularPolygon(xy, 6, radius=radius, orientation=rotation, **kwargs)
             verts = h.get_verts()
             vmins = verts.min(0)
             vmaxs = verts.max(0)

tests/plots/test_detectors.py

@@ -1,4 +1,3 @@
-import pytest
 from serpentTools.data import readDataFile
 
 from . import compare_or_update_plot
@@ -11,15 +10,22 @@ def testSpectrumPlot():
 
 
 @compare_or_update_plot
-def testBwrMeshPlot():
+def testBwrMeshPlot(recwarn):
     reader = readDataFile("bwr_det0.m")
     # Ensure that fix for #414 in in: matplotlib colorbar norm
-    with pytest.warns(None) as record:
-        reader["xymesh"].meshPlot(fixed={"energy": 0})
-    assert len(record) == 0
-
+    reader["xymesh"].meshPlot(fixed={"energy": 0})
+    assert len(recwarn) == 0
 
 @compare_or_update_plot
 def testSpectrumJustNormPerLethargy():
     reader = readDataFile("bwr_det0.m")
     reader["spectrum"].spectrumPlot(by=None, fixed={"reaction": 1})
+
+
+@compare_or_update_plot
+def testHexPlot():
+    reader = readDataFile("hexplot_det0.m")
+    h2 = reader["hex2"]
+    h2.pitch = 1
+    h2.hexType = 2
+    h2.hexPlot()