SERVER-50419 Test that serverStatus metrics correctly print commands.hello if the user sends hello

1 files changed, 44 insertions, 0 deletions

diff --git a/jstests/noPassthrough/server_status_metrics_hello_command.js b/jstests/noPassthrough/server_status_metrics_hello_command.js
new file mode 100644
index 00000000000..8aacfedae2f
--- /dev/null
+++ b/jstests/noPassthrough/server_status_metrics_hello_command.js
@@ -0,0 +1,44 @@
+/**
+ * Tests that serverStatus metrics correctly print commands.hello if the user sends hello
+ * and commands.isMaster if the user sends isMaster or ismaster
+ */
+(function() {
+"use strict";
+const mongod = MongoRunner.runMongod();
+const dbName = "server_status_metrics_hello_command";
+const db = mongod.getDB(dbName);
+let serverStatusMetrics = db.serverStatus().metrics.commands;
+const initialIsMasterTotal = serverStatusMetrics.isMaster.total;
+const initialHelloTotal = 0;
+
+// Running hello command.
+jsTestLog("Running hello command");
+assert.commandWorked(db.runCommand({hello: 1}));
+serverStatusMetrics = db.serverStatus().metrics.commands;
+assert.eq(
+    serverStatusMetrics.hello.total, initialHelloTotal + 1, "commands.hello should increment");
+assert.eq(serverStatusMetrics.isMaster.total,
+          initialIsMasterTotal,
+          "commands.isMaster should not increment");
+
+// Running isMaster command.
+jsTestLog("Running isMaster command");
+assert.commandWorked(db.runCommand({isMaster: 1}));
+serverStatusMetrics = db.serverStatus().metrics.commands;
+assert.eq(
+    serverStatusMetrics.hello.total, initialHelloTotal + 1, "commands.hello should not increment");
+assert.eq(serverStatusMetrics.isMaster.total,
+          initialIsMasterTotal + 1,
+          "commands.isMaster should increment");
+
+// Running ismaster command.
+jsTestLog("Running ismaster command");
+assert.commandWorked(db.runCommand({ismaster: 1}));
+serverStatusMetrics = db.serverStatus().metrics.commands;
+assert.eq(
+    serverStatusMetrics.hello.total, initialHelloTotal + 1, "commands.hello should not increment");
+assert.eq(serverStatusMetrics.isMaster.total,
+          initialIsMasterTotal + 2,
+          "commands.isMaster should increment");
+MongoRunner.stopMongod(mongod);
+})();