Add new SDAM test, stepdown_change_set_name.

Author: ajdavis

test/discovery_and_monitoring/rs/stepdown_change_set_name.json

@@ -0,0 +1,52 @@
+{
+ "description": "Primary becomes a secondary with wrong setName", 
+ "phases": [
+ {
+ "outcome": {
+ "servers": {
+ "a:27017": {
+ "setName": "rs", 
+ "type": "RSPrimary"
+ }
+ }, 
+ "setName": "rs", 
+ "topologyType": "ReplicaSetWithPrimary"
+ }, 
+ "responses": [
+ [
+ "a:27017", 
+ {
+ "hosts": [
+ "a:27017"
+ ], 
+ "ismaster": true, 
+ "ok": 1, 
+ "setName": "rs"
+ }
+ ]
+ ]
+ }, 
+ {
+ "outcome": {
+ "servers": {}, 
+ "setName": "rs", 
+ "topologyType": "ReplicaSetNoPrimary"
+ }, 
+ "responses": [
+ [
+ "a:27017", 
+ {
+ "hosts": [
+ "a:27017"
+ ], 
+ "ismaster": false, 
+ "ok": 1, 
+ "secondary": true, 
+ "setName": "wrong"
+ }
+ ]
+ ]
+ }
+ ], 
+ "uri": "mongodb://a/?replicaSet=rs"
+}