1 files changed, 32 insertions, 0 deletions
diff --git a/jstests/noPassthroughWithMongod/telemetry_configuration.js b/jstests/noPassthroughWithMongod/telemetry_configuration.js
new file mode 100644
index 00000000000..8d0b6ed68b5
--- /dev/null
+++ b/jstests/noPassthroughWithMongod/telemetry_configuration.js
@@ -0,0 +1,32 @@
+/**
+ * Tests that the telemetry store can be resized if it is configured, and cannot be resized if it is
+ * disabled.
+ */
+(function() {
+"use strict";
+
+load("jstests/libs/feature_flag_util.js");
+
+if (FeatureFlagUtil.isEnabled(db, "Telemetry")) {
+    // The feature flag is enabled - make sure the telemetry store can be configured.
+    const original = assert.commandWorked(
+        db.adminCommand({getParameter: 1, internalQueryConfigureTelemetryCacheSize: 1}));
+    assert(original.hasOwnProperty("internalQueryConfigureTelemetryCacheSize"), original);
+    const originalValue = original.internalQueryConfigureTelemetryCacheSize;
+    try {
+        assert.doesNotThrow(
+            () => db.adminCommand(
+                {setParameter: 1, internalQueryConfigureTelemetryCacheSize: '2MB'}));
+        // Other tests verify that resizing actually affects the data structure size.
+    } finally {
+        assert.doesNotThrow(
+            () => db.adminCommand(
+                {setParameter: 1, internalQueryConfigureTelemetryCacheSize: originalValue}));
+    }
+} else {
+    // The feature flag is disabled - make sure the telemetry store *cannot* be configured.
+    assert.commandFailedWithCode(
+        db.adminCommand({setParameter: 1, internalQueryConfigureTelemetryCacheSize: '2MB'}),
+        7373500);
+}
+}());