matplotlib
diff --git a/‎lib/matplotlib/tests/baseline_images/test_axes/secondary_xy.png
2.96 KB b/‎lib/matplotlib/tests/baseline_images/test_axes/secondary_xy.png
2.96 KB
diff --git a/‎lib/matplotlib/tests/test_axes.py
Lines changed: 3 additions & 0 deletions b/‎lib/matplotlib/tests/test_axes.py
Lines changed: 3 additions & 0 deletions
@@ -7229,6 +7229,7 @@ def invert(x):
         secax(0.4, functions=(lambda x: 2 * x, lambda x: x / 2))
         secax(0.6, functions=(lambda x: x**2, lambda x: x**(1/2)))
         secax(0.8)
+        secax(6.25, transform=ax.transData)
 
 
 def test_secondary_fail():
@@ -7240,6 +7241,8 @@ def test_secondary_fail():
         ax.secondary_xaxis('right')
     with pytest.raises(ValueError):
         ax.secondary_yaxis('bottom')
+    with pytest.raises(ValueError):
+        ax.secondary_xaxis(0.2, transform='error')
 
 
 def test_secondary_resize():