Use values outside [0, 1] for testing under/over.

bdice · bdice · commit 642477ebac73 · 2020-08-08T22:47:20.000-05:00
diff --git a/lib/matplotlib/tests/test_colors.py b/lib/matplotlib/tests/test_colors.py
@@ -1172,6 +1172,6 @@ def test_repr_html():
 
 def test_get_under_over_bad():
     cmap = plt.get_cmap('viridis')
-    assert_array_equal(cmap.get_under(), cmap(0.0))
-    assert_array_equal(cmap.get_over(), cmap(1.0))
+    assert_array_equal(cmap.get_under(), cmap(-np.inf))
+    assert_array_equal(cmap.get_over(), cmap(np.inf))
     assert_array_equal(cmap.get_bad(), cmap(np.nan))
