combining two rs's test

jstests/replsets/twosets.js

@@ -0,0 +1,36 @@
+// add a node from a different set to the current set
+// I don't know what should happen here.
+
+doTest = function( signal ) {
+
+    var orig = new ReplSetTest( {name: 'testSet', nodes: 3} );
+    orig.startSet();
+
+    var interloper = new ReplSetTest( {name: 'testSet', nodes: 3, startPort : 31003} );
+    interloper.startSet();
+
+    sleep(5000);
+
+    orig.initiate();
+    interloper.initiate();
+
+    sleep(5000);
+
+    var master = orig.getMaster();
+
+    var conf = master.getDB("local").system.replset.findOne();
+
+    var nodes = interloper.nodeList();
+    var host = nodes[0];
+    var id = conf.members.length;
+    conf.members.push({_id : id, host : host});
+    conf.version++;
+
+    var result = master.getDB("admin").runCommand({replSetReconfig : conf});
+
+    // now... stuff should blow up?
+
+    sleep(10);
+}
+
+doTest(15);