MNT: changes from review

Co-authored-by: Elliott Sales de Andrade <[email protected]>

Author: tacaswell

lib/matplotlib/figure.py

@@ -2414,8 +2414,8 @@ def set_layout_engine(self, layout=None, **kwargs):
 
             If `None`, the behavior is controlled by :rc:`figure.autolayout`
             (which if `True` behaves as if 'tight' were passed) and
-            :rc:`figure.constrained_layout.use` (which if true behaves as if
-            'constrained' were passed).  If both are true,
+            :rc:`figure.constrained_layout.use` (which if `True` behaves as if
+            'constrained' were passed).  If both are `True`,
             :rc:`figure.autolayout` takes priority.
 
             Users and libraries can define their own layout engines and pass

lib/matplotlib/tests/test_figure.py

@@ -591,12 +591,11 @@ def test_invalid_layouts():
     with pytest.raises(RuntimeError, match='Colorbar layout of new layout'):
         fig.set_layout_engine("constrained")
     fig.set_layout_engine("none")
+    assert isinstance(fig.get_layout_engine(), PlaceHolderLayoutEngine)
+
     with pytest.raises(RuntimeError, match='Colorbar layout of new layout'):
         fig.set_layout_engine("constrained")
 
-    fig.set_layout_engine("none")
-    assert isinstance(fig.get_layout_engine(), PlaceHolderLayoutEngine)
-
 
 @check_figures_equal(extensions=["png", "pdf"])
 def test_add_artist(fig_test, fig_ref):