added unit tests for issue #16501

prasadve · prasadve · commit 942ee4d3d553 · 2020-03-07T18:06:15.000-05:00
diff --git a/lib/matplotlib/projections/polar.py b/lib/matplotlib/projections/polar.py
@@ -1001,11 +1001,11 @@ def set_thetalim(self, *args, **kwargs):
         if args.__len__() == 2:
             if args[0] is not None and args[1] is not None:
                 if(abs(args[1] - args[0]) > 2 * np.pi):
-                    raise TypeError('Cannot pass angle range > 2 pi')
+                    raise ValueError('Cannot pass angle range > 2 pi')
         
         if 'xmin' in kwargs and 'xmax' in kwargs:
             if(abs(thetamax - thetamin) > 2 * np.pi):
-                raise TypeError('Cannot pass angle range > 2 pi')
+                raise ValueError('Cannot pass angle range > 2 pi')
         return tuple(np.rad2deg(self.set_xlim(*args, **kwargs)))
 
     def set_theta_offset(self, offset):
diff --git a/lib/matplotlib/tests/test_subplots.py b/lib/matplotlib/tests/test_subplots.py
@@ -173,3 +173,13 @@ def test_dont_mutate_kwargs():
                            gridspec_kw=gridspec_kw)
     assert subplot_kw == {'sharex': 'all'}
     assert gridspec_kw == {'width_ratios': [1, 2]}
+
+def test_subplot_theta_min_max():
+    with pytest.raises(ValueError, match="Cannot pass angle range > 2 pi"):
+        ax = plt.subplot(111, projection='polar')
+        ax.set_thetalim(thetamin = 800, thetamax=400)
+
+def test_subplot_theta_range():
+    with pytest.raises(ValueError, match="Cannot pass angle range > 2 pi"):
+        ax = plt.subplot(111, projection='polar')
+        ax.set_thetalim(0, 3 * numpy.pi)
