SERVER-24611 Implement ClientMetadata class

1 files changed, 12 insertions, 0 deletions

diff --git a/jstests/core/client_metadata_ismaster.js b/jstests/core/client_metadata_ismaster.js
new file mode 100644
index 00000000000..e5aa7d2547a
--- /dev/null
+++ b/jstests/core/client_metadata_ismaster.js
@@ -0,0 +1,12 @@
+// Test that verifies client metadata behavior for isMaster
+
+(function() {
+    "use strict";
+
+    // Verify that a isMaster request fails if it contains client metadata, and it is not first.
+    // The shell sends isMaster on the first connection
+    var result = db.runCommand({"isMaster": 1, "client": {"application": "foobar"}});
+    assert.commandFailed(result);
+    assert.eq(result.code, ErrorCodes.ClientMetadataCannotBeMutated, tojson(result));
+
+})();