Test expected (inferred) and actual shape of draws in `TestBaseDistri…

…butionRandom`

pymc/tests/test_distributions_random.py

@@ -365,8 +365,9 @@ def check_rv_size(self):
         sizes_expected = self.sizes_expected or [(), (), (1,), (1,), (5,), (4, 5), (2, 4, 2)]
         for size, expected in zip(sizes_to_check, sizes_expected):
             pymc_rv = self.pymc_dist.dist(**self.pymc_dist_params, size=size)
-            actual = tuple(pymc_rv.shape.eval())
-            assert actual == expected, f"size={size}, expected={expected}, actual={actual}"
+            expected_symbolic = tuple(pymc_rv.shape.eval())
+            actual = pymc_rv.eval().shape
+            assert actual == expected_symbolic == expected
 
         # test multi-parameters sampling for univariate distributions (with univariate inputs)
         if (
@@ -386,8 +387,9 @@ def check_rv_size(self):
             ]
             for size, expected in zip(sizes_to_check, sizes_expected):
                 pymc_rv = self.pymc_dist.dist(**params, size=size)
-                actual = tuple(pymc_rv.shape.eval())
-                assert actual == expected
+                expected_symbolic = tuple(pymc_rv.shape.eval())
+                actual = pymc_rv.eval().shape
+                assert actual == expected_symbolic == expected
 
     def validate_tests_list(self):
         assert len(self.tests_to_run) == len(