diff --git a/GPy/testing/rv_transformation_tests.py b/GPy/testing/rv_transformation_tests.py
index 44d8710d..bd721246 100644
--- a/GPy/testing/rv_transformation_tests.py
+++ b/GPy/testing/rv_transformation_tests.py
@@ -14,8 +14,8 @@ class TestModel(GPy.core.Model):
     """
     A simple GPy model with one parameter.
     """
-    def __init__(self):
-        GPy.core.Model.__init__(self, 'test_model')
+    def __init__(self, name):
+        GPy.core.Model.__init__(self, name)
         theta = GPy.core.Param('theta', 1.)
         self.link_parameter(theta)
 
@@ -26,7 +26,7 @@ class TestModel(GPy.core.Model):
 class RVTransformationTestCase(unittest.TestCase):
 
     def _test_trans(self, trans):
-        m = TestModel()
+        m = TestModel(trans.__class__.__name__)
         prior = GPy.priors.LogGaussian(.5, 0.1)
         m.theta.set_prior(prior)
         m.theta.unconstrain()
@@ -56,12 +56,13 @@ class RVTransformationTestCase(unittest.TestCase):
         # The following test cannot be very accurate
         self.assertTrue(np.linalg.norm(pdf_phi - kde(phi)) / np.linalg.norm(kde(phi)) <= 1e-1)
         # Check the gradients at a few random points
-        for i in range(10):
+        for i in range(5):
             m.theta = theta_s[i]
             self.assertTrue(m.checkgrad(verbose=True))
 
     def test_Logexp(self):
         self._test_trans(GPy.constraints.Logexp())
+    def test_Exponent(self):
         self._test_trans(GPy.constraints.Exponent())