removed upper positional arg from test_truncated_normal_lower and vice versa

Author: Tom Gilliss

pymc3/tests/test_distributions_random.py

@@ -483,13 +483,13 @@ def ref_rand(size, mu, sigma, lower, upper):
                      ref_rand=ref_rand)
 
     def test_truncated_normal_lower(self):
-        def ref_rand(size, mu, sigma, lower, upper):
+        def ref_rand(size, mu, sigma, lower):
             return st.truncnorm.rvs((lower-mu)/sigma, np.inf, size=size, loc=mu, scale=sigma)
         pymc3_random(pm.TruncatedNormal, {'mu': R, 'sigma': Rplusbig, 'lower':-Rplusbig},
                      ref_rand=ref_rand)
 
     def test_truncated_normal_upper(self):
-        def ref_rand(size, mu, sigma, lower, upper):
+        def ref_rand(size, mu, sigma, upper):
             return st.truncnorm.rvs(-np.inf, (upper-mu)/sigma, size=size, loc=mu, scale=sigma)
         pymc3_random(pm.TruncatedNormal, {'mu': R, 'sigma': Rplusbig, 'upper':Rplusbig},
                      ref_rand=ref_rand)