Issue #7818: set().test_c_api() doesn't expect a set('abc'), modify the set.
diff --git a/Objects/setobject.c b/Objects/setobject.c
index af5d576..ab281af 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -2387,11 +2387,25 @@
Py_ssize_t i;
PyObject *elem=NULL, *dup=NULL, *t, *f, *dup2, *x;
PyObject *ob = (PyObject *)so;
+ PyObject *str;
- /* Verify preconditions and exercise type/size checks */
+ /* Verify preconditions */
assert(PyAnySet_Check(ob));
assert(PyAnySet_CheckExact(ob));
assert(!PyFrozenSet_CheckExact(ob));
+
+ /* so.clear(); so |= set("abc"); */
+ str = PyString_FromString("abc");
+ if (str == NULL)
+ return NULL;
+ set_clear_internal(so);
+ if (set_update_internal(so, str) == -1) {
+ Py_DECREF(str);
+ return NULL;
+ }
+ Py_DECREF(str);
+
+ /* Exercise type/size checks */
assert(PySet_Size(ob) == 3);
assert(PySet_GET_SIZE(ob) == 3);