1 files changed, 54 insertions, 0 deletions
diff --git a/jstests/noPassthrough/queryStats/feature_flag_off_sampling_rate_on.js b/jstests/noPassthrough/queryStats/feature_flag_off_sampling_rate_on.js
new file mode 100644
index 00000000000..38474b944d0
--- /dev/null
+++ b/jstests/noPassthrough/queryStats/feature_flag_off_sampling_rate_on.js
@@ -0,0 +1,54 @@
+/**
+ * Test that calls to read from telemetry store fail when feature flag is turned off and sampling
+ * rate > 0.
+ */
+load('jstests/libs/analyze_plan.js');
+load("jstests/libs/feature_flag_util.js");
+
+(function() {
+"use strict";
+
+// Set sampling rate to -1.
+let options = {
+    setParameter: {internalQueryStatsSamplingRate: -1},
+};
+const conn = MongoRunner.runMongod(options);
+const testdb = conn.getDB('test');
+
+// This test specifically tests error handling when the feature flag is not on.
+// TODO SERVER-65800 This test can be deleted when the feature is on by default.
+if (!conn || FeatureFlagUtil.isEnabled(testdb, "QueryStats")) {
+    jsTestLog(`Skipping test since feature flag is disabled. conn: ${conn}`);
+    if (conn) {
+        MongoRunner.stopMongod(conn);
+    }
+    return;
+}
+
+var coll = testdb[jsTestName()];
+coll.drop();
+
+// Bulk insert documents to reduces roundtrips and make timeout on a slow machine less likely.
+const bulk = coll.initializeUnorderedBulkOp();
+for (let i = 1; i <= 20; i++) {
+    bulk.insert({foo: 0, bar: Math.floor(Math.random() * 3)});
+}
+assert.commandWorked(bulk.execute());
+
+// Pipeline to read telemetry store should fail without feature flag turned on even though sampling
+// rate is > 0.
+assert.commandFailedWithCode(
+    testdb.adminCommand({aggregate: 1, pipeline: [{$queryStats: {}}], cursor: {}}),
+    ErrorCodes.QueryFeatureNotAllowed);
+
+// Pipeline, with a filter, to read telemetry store fails without feature flag turned on even though
+// sampling rate is > 0.
+assert.commandFailedWithCode(testdb.adminCommand({
+    aggregate: 1,
+    pipeline: [{$queryStats: {}}, {$match: {"key.queryShape.find": {$eq: "###"}}}],
+    cursor: {}
+}),
+                             ErrorCodes.QueryFeatureNotAllowed);
+
+MongoRunner.stopMongod(conn);
+}());