Remove stale/redundant random tests

pymc/tests/test_distributions.py

@@ -2169,33 +2169,6 @@ def test_multinomial_logp(self, n):
             Multinomial, Vector(Nat, n), {"p": Simplex(n), "n": Nat}, multinomial_logpmf
         )
 
-    @pytest.mark.parametrize(
-        "p, size, n",
-        [
-            [[0.25, 0.25, 0.25, 0.25], (4,), 2],
-            [[0.25, 0.25, 0.25, 0.25], (1, 4), 3],
-            # 3: expect to fail
-            # [[.25, .25, .25, .25], (10, 4)],
-            [[0.25, 0.25, 0.25, 0.25], (10, 1, 4), 5],
-            # 5: expect to fail
-            # [[[.25, .25, .25, .25]], (2, 4), [7, 11]],
-            [[[0.25, 0.25, 0.25, 0.25], [0.25, 0.25, 0.25, 0.25]], (2, 4), 13],
-            [[[0.25, 0.25, 0.25, 0.25], [0.25, 0.25, 0.25, 0.25]], (1, 2, 4), [23, 29]],
-            [
-                [[0.25, 0.25, 0.25, 0.25], [0.25, 0.25, 0.25, 0.25]],
-                (10, 2, 4),
-                [31, 37],
-            ],
-            [[[0.25, 0.25, 0.25, 0.25], [0.25, 0.25, 0.25, 0.25]], (2, 4), [17, 19]],
-        ],
-    )
-    def test_multinomial_random(self, p, size, n):
-        p = np.asarray(p)
-        with Model() as model:
-            m = Multinomial("m", n=n, p=p, size=size)
-
-        assert m.eval().shape == size + p.shape
-
     @pytest.mark.parametrize("n", [(10), ([10, 11]), ([[5, 6], [10, 11]])])
     @pytest.mark.parametrize(
         "p",

pymc/tests/test_distributions_random.py

@@ -255,18 +255,6 @@ class TestGaussianRandomWalk(BaseTestCases.BaseTestCase):
     default_shape = (1,)
 
 
-@pytest.mark.xfail(reason="This distribution has not been refactored for v4")
-class TestZeroInflatedNegativeBinomial(BaseTestCases.BaseTestCase):
-    distribution = pm.ZeroInflatedNegativeBinomial
-    params = {"mu": 1.0, "alpha": 1.0, "psi": 0.3}
-
-
-@pytest.mark.xfail(reason="This distribution has not been refactored for v4")
-class TestZeroInflatedBinomial(BaseTestCases.BaseTestCase):
-    distribution = pm.ZeroInflatedBinomial
-    params = {"n": 10, "p": 0.6, "psi": 0.3}
-
-
 class BaseTestDistribution(SeededTest):
     """
     This class provides a base for tests that new RandomVariables are correctly