qa/suites/rados/rest: Don't pass empty dict as data arg

Passing an empty 'args' dict as a data argument when calling
requests.get somehow confuses the transaction, causing it to fail. Pass
'None' instead.

Fixes: https://tracker.ceph.com/issues/43720
Signed-off-by: Brad Hubbard <bhubbard@redhat.com>
(cherry picked from commit e20e6fc3295da836fb5f098d46d6190ab28195d5)

diff --git a/qa/workunits/rest/test_mgr_rest_api.py b/qa/workunits/rest/test_mgr_rest_api.py
index 4d868e7a8d366dcbfa549ee40e308b44a286f844..fc240934d1a84e8e1b8ef32718833decf3fc76c2 100755 (executable)
--- a/qa/workunits/rest/test_mgr_rest_api.py
+++ b/qa/workunits/rest/test_mgr_rest_api.py
@@ -85,7 +85,7 @@ for method, endpoint, args in screenplay:
     print("URL = " + url)
     request = getattr(requests, method)(
         url,
-        data=json.dumps(args),
+        data=json.dumps(args) if args else None,
         headers=headers,
         verify=False,
         auth=auth)