SERVER-35623 Send a replSetStepUp command to an eligible candidate on stepdown

1 files changed, 31 insertions, 0 deletions

diff --git a/jstests/replsets/election_handoff_higher_priority.js b/jstests/replsets/election_handoff_higher_priority.js
new file mode 100644
index 00000000000..78a866a1201
--- /dev/null
+++ b/jstests/replsets/election_handoff_higher_priority.js
@@ -0,0 +1,31 @@
+/**
+ * This is a test that checks that, with election handoff is enabled, a primary that steps
+ * down sends a ReplSetStepUp request to an eligible candidate. This test uses a three node
+ * replica set, where one of the secondaries has a higher priority than the other. The test
+ * expects that that secondary gets chosen as the election handoff candidate.
+ */
+
+(function() {
+    "use strict";
+    load("jstests/replsets/libs/election_handoff.js");
+
+    const testName = "election_handoff_higher_priority";
+    const numNodes = 3;
+    const rst = ReplSetTest({name: testName, nodes: numNodes});
+    const nodes = rst.nodeList();
+    rst.startSet();
+
+    const config = rst.getReplSetConfig();
+    config.members[0].priority = 3;
+    config.members[1].priority = 1;
+    config.members[2].priority = 2;
+
+    // Make sure there are no election timeouts firing for the duration of the test. This helps
+    // ensure that the test will only pass if the election handoff succeeds.
+    config.settings = {"electionTimeoutMillis": 12 * 60 * 60 * 1000};
+    rst.initiate(config);
+
+    ElectionHandoffTest.testElectionHandoff(rst, 0, 2);
+
+    rst.stopSet();
+})();
\ No newline at end of file