test error passing AxesGrid and nrow or ncol (#182)

Author: mathause

CHANGELOG.md

@@ -21,7 +21,8 @@
 ### Enhancements
 
 - Add python 3.13 to list of supported versions ([#158](https://github.com/mpytools/mplotutils/pull/158)).
-- Increased test coverage ([#180](https://github.com/mpytools/mplotutils/pull/180), and [#181](https://github.com/mpytools/mplotutils/pull/181)).
+- Increased test coverage ([#180](https://github.com/mpytools/mplotutils/pull/180), [#181](https://github.com/mpytools/mplotutils/pull/181),
+  and [#182](https://github.com/mpytools/mplotutils/pull/182)).
 
 ### Bug fixes
 

mplotutils/tests/test_set_map_layout_axes_grid.py

@@ -7,6 +7,22 @@
 from . import figure_context, get_rtol
 
 
+def test_set_map_layout_error_ncol_nrow():
+    with figure_context() as f:
+
+        axgr = AxesGrid(f, 111, nrows_ncols=(1, 1))
+
+        msg = "Cannot pass 'nrow' or 'ncol' for and 'AxesGrid'"
+        with pytest.raises(TypeError, match=msg):
+            set_map_layout(axgr, ncol=1)
+
+        with pytest.raises(TypeError, match=msg):
+            set_map_layout(axgr, nrow=1)
+
+        with pytest.raises(TypeError, match=msg):
+            set_map_layout(axgr, nrow=1, ncol=1)
+
+
 def test_set_map_layout_default_width():
     with figure_context() as f: