matplotlib
diff --git a/‎lib/matplotlib/tests/test_widgets.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_widgets.py
+11-3Lines changed: 11 additions & 3 deletions b/‎lib/matplotlib/tests/test_widgets.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_widgets.py
+11-3Lines changed: 11 additions & 3 deletions
@@ -645,6 +645,13 @@ def test_span_selector(ax, orientation, onmove_callback, kwargs):
     if onmove_callback:
         kwargs['onmove_callback'] = onmove
 
+    # While at it, also test that span selectors work in the presence of twin axes on
+    # top of the axes that contain the selector.  Note that we need to unforce the axes
+    # aspect here, otherwise the twin axes forces the original axes' limits (to respect
+    # aspect=1) which makes some of the values below go out of bounds.
+    ax.set_aspect("auto")
+    tax = ax.twinx()
+
     tool = widgets.SpanSelector(ax, onselect, orientation, **kwargs)
     do_event(tool, 'press', xdata=100, ydata=100, button=1)
     # move outside of axis
@@ -927,7 +934,7 @@ def mean(vmin, vmax):
 
     # Change span selector and check that the line is drawn/updated after its
     # value was updated by the callback
-    press_data = [4, 2]
+    press_data = [4, 0]
     move_data = [5, 2]
     release_data = [5, 2]
     do_event(span, 'press', xdata=press_data[0], ydata=press_data[1], button=1)
@@ -1035,7 +1042,7 @@ def test_TextBox(ax, toolbar):
 
     assert submit_event.call_count == 2
 
-    do_event(tool, '_click')
+    do_event(tool, '_click', xdata=.5, ydata=.5)  # Ensure the click is in the axes.
     do_event(tool, '_keypress', key='+')
     do_event(tool, '_keypress', key='5')
 
@@ -1634,7 +1641,8 @@ def test_polygon_selector_verts_setter(fig_test, fig_ref, draw_bounding_box):
 
 
 def test_polygon_selector_box(ax):
-    # Create a diamond shape
+    # Create a diamond (adjusting axes lims s.t. the diamond lies within axes limits).
+    ax.set(xlim=(-10, 50), ylim=(-10, 50))
     verts = [(20, 0), (0, 20), (20, 40), (40, 20)]
     event_sequence = [
         *polygon_place_vertex(*verts[0]),