From c66c033605deb6b2c950e7b73172cd4e960a00a0 Mon Sep 17 00:00:00 2001
From: Sara Golemon <sara.golemon@mongodb.com>
Date: Wed, 5 May 2021 16:23:58 +0000
Subject: [PATCH] SERVER-56671 Reintroduce delay in user acquisition during
 test

---
 jstests/auth/user-cache-invalidation.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/jstests/auth/user-cache-invalidation.js b/jstests/auth/user-cache-invalidation.js
index c5a6e54065e..ec5ab87b9c4 100644
--- a/jstests/auth/user-cache-invalidation.js
+++ b/jstests/auth/user-cache-invalidation.js
@@ -137,9 +137,17 @@ function runTest(writeNode, readNode, awaitReplication, lock, unlock) {
     }
 
     // Set the failpoint before we start the parallel thread.
-    let fp = configureFailPoint(
+    const fp = configureFailPoint(
         readNode, 'waitForUserCacheInvalidation', {userName: {db: testDB, user: testUser}});
 
+    // We need some time to mutate the auth state before the acquisition completes.
+    const kResolveRolesDelayMS = 5 * 1000;
+    assert.commandWorked(readAdmin.runCommand({
+        configureFailPoint: 'authLocalGetUser',
+        mode: 'alwaysOn',
+        data: {resolveRolesDelayMS: NumberInt(kResolveRolesDelayMS)}
+    }));
+
     const thread = new Thread(function(port, testUser, testDB) {
         const mongo = new Mongo('localhost:' + port);
         assert(mongo);