fix TestWorkflowHandler

Author: antgonza

qiita_db/software.py

@@ -1621,7 +1621,6 @@ def load(cls, command, json_str=None, values_dict=None):
             error_msg = ("The provided JSON string doesn't encode a "
                          "parameter set for command '%s (ID: %s)'" % (
                              command.name, command.id))
-            error_msg += str(parameters)
         else:
             if not isinstance(values_dict, dict):
                 raise qdb.exceptions.QiitaDBError(

qiita_pet/handlers/study_handlers/tests/test_processing.py

@@ -152,7 +152,8 @@ def test_post(self):
         self.assertEqual(response.code, 200)
         exp = {'status': 'error', 'workflow_id': None, 'job': None,
                'message': "The provided JSON string doesn't encode a parameter"
-                          " set for command 3. Missing required parameter: "
+                          " set for command 'Pick closed-reference OTUs "
+                          "(ID: 3)'. Missing required parameter: "
                           "input_data"}
         self.assertDictEqual(loads(response.body), exp)