api: fix workspace creation

* Arguments were in the wrong order causing the workspace to be created
  wrongly.

Signed-off-by: Diego Rodriguez <diego.rodriguez@cern.ch>

reana_workflow_controller/rest.py

@@ -255,8 +255,8 @@ def create_workflow():  # noqa
 
         workflow_uuid = str(uuid4())
         workflow_workspace, _ = create_workflow_workspace(
-            user_uuid,
             organization,
+            user_uuid,
             workflow_uuid)
         # add spec and params to DB as JSON
         workflow = Workflow(id_=workflow_uuid,

tests/test_views.py

@@ -138,7 +138,8 @@ def test_create_workflow(app, default_user, db_session,
             organization, str(default_user.id_))
         workflow_workspace = os.path.join(
             tmp_shared_volume_path,
-            user_analyses_workspace)
+            user_analyses_workspace,
+            str(workflow.id_))
         assert os.path.exists(workflow_workspace)