matplotlib · phobson · Jun 5, 2018 · Jun 1, 2018
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -1821,7 +1821,8 @@ def test_pyplot_axes():
     # test focusing of Axes in other Figure
     fig1, ax1 = plt.subplots()
     fig2, ax2 = plt.subplots()
-    assert ax1 is plt.axes(ax1)
+    with pytest.warns(MatplotlibDeprecationWarning):
+        assert ax1 is plt.axes(ax1)
     assert ax1 is plt.gca()
     assert fig1 is plt.gcf()
     plt.close(fig1)

diff --git a/lib/matplotlib/tests/test_dates.py b/lib/matplotlib/tests/test_dates.py
@@ -9,6 +9,7 @@
 
 from matplotlib.testing.decorators import image_comparison
 import matplotlib.pyplot as plt
+from matplotlib.cbook import MatplotlibDeprecationWarning
 import matplotlib.dates as mdates
 
 
@@ -239,16 +240,18 @@ def test_strftime_fields(dt):
                 minute=dt.minute,
                 second=dt.second,
                 microsecond=dt.microsecond))
-        assert formatter.strftime(dt) == formatted_date_str
+        with pytest.warns(MatplotlibDeprecationWarning):
+            assert formatter.strftime(dt) == formatted_date_str
 
         try:
             # Test strftime("%x") with the current locale.
             import locale  # Might not exist on some platforms, such as Windows
             locale_formatter = mdates.DateFormatter("%x")
             locale_d_fmt = locale.nl_langinfo(locale.D_FMT)
             expanded_formatter = mdates.DateFormatter(locale_d_fmt)
-            assert locale_formatter.strftime(dt) == \
-                expanded_formatter.strftime(dt)
+            with pytest.warns(MatplotlibDeprecationWarning):
+                assert locale_formatter.strftime(dt) == \
+                    expanded_formatter.strftime(dt)
         except (ImportError, AttributeError):
             pass