TST: secondary_axes resize

jklymak · jklymak · commit f96eba884ffc · 2019-02-11T22:11:36.000-08:00
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -6106,3 +6106,16 @@ def test_secondary_fail():
         axsec = ax.secondary_xaxis('right')
     with pytest.raises(ValueError):
         axsec = ax.secondary_yaxis('bottom')
+
+
+def test_secondary_resize():
+    fig, ax = plt.subplots(figsize=(10, 5))
+    ax.plot(np.arange(2, 11), np.arange(2, 11))
+    def invert(x):
+        with np.errstate(divide='ignore'):
+            return 1 / x
+
+    axsec = ax.secondary_xaxis('top', functions=(invert, invert))
+    fig.canvas.draw()
+    fig.set_size_inches((7, 4))
+    assert_allclose(ax.get_position().extents, [0.125, 0.1, 0.9, 0.9])
