Add test for set_aspect() parameter validation

Author: timhoffm

lib/matplotlib/tests/test_axes.py

@@ -7527,6 +7527,18 @@ def test_bbox_aspect_axes_init():
     assert_allclose(sizes, sizes[0])
 
 
+def test_set_aspect_negative():
+    fig, ax = plt.subplots()
+    with pytest.raises(ValueError, match="must be finite and positive"):
+        ax.set_aspect(-1)
+    with pytest.raises(ValueError, match="must be finite and positive"):
+        ax.set_aspect(0)
+    with pytest.raises(ValueError, match="must be finite and positive"):
+        ax.set_aspect(np.inf)
+    with pytest.raises(ValueError, match="must be finite and positive"):
+        ax.set_aspect(-np.inf)
+
+
 def test_redraw_in_frame():
     fig, ax = plt.subplots(1, 1)
     ax.plot([1, 2, 3])