add missing self to test_misc_args

Author: ahartikainen

pystan/tests/test_misc_args.py

@@ -33,11 +33,11 @@ def test_print_summary(self):
         summary_one_par2 = pystan.misc.stansummary(fit, pars=['z'])
         summary_pars = pystan.misc.stansummary(fit, pars=['x', 'y'])
 
-        assertNotEqual(summary_full, summary_one_par1)
-        assertNotEqual(summary_full, summary_one_par2)
-        assertNotEqual(summary_full, summary_pars)
-        assertNotEqual(summary_one_par1, summary_one_par2)
-        assertNotEqual(summary_one_par1, summary_pars)
-        assertNotEqual(summary_one_par2, summary_pars)
+        self.assertNotEqual(summary_full, summary_one_par1)
+        self.assertNotEqual(summary_full, summary_one_par2)
+        self.assertNotEqual(summary_full, summary_pars)
+        self.assertNotEqual(summary_one_par1, summary_one_par2)
+        self.assertNotEqual(summary_one_par1, summary_pars)
+        self.assertNotEqual(summary_one_par2, summary_pars)
 
-        assertEqual(summary_one_par1, summary_one_par2)
+        self.assertEqual(summary_one_par1, summary_one_par2)