fix flaky tests?

Author: baileympearson

test/integration/auth/auth.prose.test.ts

@@ -9,8 +9,6 @@ function makeConnectionString(config, username, password) {
 
 const metadata: MongoDBMetadataUI = {
   requires: {
-    auth: 'enabled',
-    mongodb: '>=3.7.3',
     predicate: () =>
       process.env.LOAD_BALANCER ? 'TODO(NODE-5631): fix tests to run in load balancer mode.' : true
   }
@@ -305,8 +303,7 @@ describe('Authentication Spec Prose Tests', function () {
       );
     });
 
-    // TODO(NODE-6752): Fix flaky SCRAM-SHA-256 tests
-    describe.skip('Step 4', function () {
+    describe('Step 4', function () {
       /**
        * Step 4
        * To test SASLprep behavior, create two users:
@@ -343,11 +340,9 @@ describe('Authentication Spec Prose Tests', function () {
         utilClient = this.configuration.newClient(this.configuration.url());
         const db = utilClient.db('admin');
 
-        try {
-          await Promise.all(users.map(user => db.removeUser(user.username)));
-        } catch {
-          /** We ensure that users are deleted. No action needed. */
-        }
+        // We do not care if this fails - this is just cleanup for any
+        // previous test iterations or previous test runs.
+        await Promise.allSettled(users.map(user => db.removeUser(user.username)));
 
         const createUserCommands = users.map(user => ({
           createUser: user.username,
@@ -356,7 +351,15 @@ describe('Authentication Spec Prose Tests', function () {
           mechanisms: user.mechanisms
         }));
 
-        await Promise.all(createUserCommands.map(cmd => db.command(cmd)));
+        const failures = await Promise.allSettled(
+          createUserCommands.map(cmd => db.command(cmd))
+        ).then(resolutions => resolutions.filter(resolution => resolution.status === 'rejected'));
+
+        if (failures.length) {
+          throw new Error(
+            'Error(s) creating users: ' + failures.map(failure => failure.reason).join(' | ')
+          );
+        }
       });
 
       afterEach(async function () {
@@ -391,7 +394,7 @@ describe('Authentication Spec Prose Tests', function () {
             const stats = await client.db('admin').stats();
             expect(stats).to.exist;
           }
-        ).skipReason = 'TODO(NODE-6752): Fix flaky SCRAM-SHA-256 test';
+        );
 
         it(
           'logs in with normalized username and non-normalized password',